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PENTODES
(Last updated: 07-Mär-2017 9:08 )

Nixie and Magic Eyes - Triodes - Pentodes - Rectifiers and Stabilizers - NOS Sockets - NOS Capacitors

How these tubes are tested

FAQ Frequently Asked Questions

Attention: This is an export Price List, valid for companies in the European Community with a VAT Identification number, and for companies or private persons outside the European Community.    Inside Europe,  please ask for a quote, including VAT tax. (The VAT rate is 19%)

Tube 
Date 
. .
Qty. 
EURO 


47 Ken-Rad
Order Number:
114-138-76


1930's

The 47 is a directly heated pentode, and it also has excellent triode characteristics. Not directly heated pentodes were made, because indirectly heated tubes were invented shortly after. Though a pentode, such tubes can give beautiful vintage sound, as they are indirectly heated, meaning always better tube curves.

The 47 was the "big" output tube of it's time. It will produce 2,7 Watt output power in SE, at very comfortable 250 Volt only. It works very good in push pull also.

I was able to get a lot of 22 pieces from somebody closing down his company. I never get such tubes again. Test results are wonderful. They come out of the boxes with shiny pins, and clean print, like new made yesterday. Even the boxes are perfect.

Beautifull black bulb, but not too dark, you can see inside very nice.

For such older tubes, I always prefer to test them on the Hickok I-177. Please let me know if you need matched pairs, we can do so with the Amplitrex AT1000. Price adder for this is small. Where can you get matched pairs of NOS tube like this :)

 

 
22
See 
price list 
for all tubes 
(download 
from the 
menu) 
350B Western Electric
 

White Box. Mint tube. Base is shiny and clean. Clear, yellow printing, no scratches whatsoever. Appearance is finest as can be. Amplitrex test reports included, with perfect test values. Test Data - Tube curves

General notes: 350B is an special version of 6L6. If you are interested in the difference, there is a great free source of information for this. It's the datasheets. We see there, the 350B curves remind of the 6L6, but they are not the same. The 350B is designed to work at lower voltage, and so it must work at higher current. To make the higher current possible, the heater current of 350B is much higher, thus giving more emission. The 350B heater is 10 Watt, whereas 6L6 has a 5 Watt heater. Also the glow picture of the 350B is very impressing, wow! 10 Watt is a lot of glow.

What may seem so audiophile about the 350B is "the brand" for some users, but in fact we are dealing here with a large improvement of the 6L6. The 6L6 was "the" audio work horse tube for a long time. However 6L6 emission is a bit low, and curves not so great, but the tube was cheap and good. All WE had to do, is add more emission. This allows the lower working voltage, yet at lower distortion than the 6L6.

Sorry for the price, but it recently an unbelievable hunt for those tubes has started. This a truely mint condition NOS one, optical and electrical. So I can't sell it cheap.

 
Va, Max
Singe Ended
Heater
Screen
Push Pull
Class A1
350B
360V
1.6A
4W
18Watt
@275Volt
6L6
375V
0.9A
3.5W
13,8Watt
@255Volt
NOS
1
690,-

6AK5 Mullard
unknown

The tubes are stamped CV4010 which is the Mullard Designation for this tube. Mint condition, beautifull tubes.
For Yamamoto phono amp, pre amp, or others.

NOS 
9
28,-

6AQ5  Tung Sol
1959 
Used in Fender guitar amps. 
NOS 

2

12,- 


6L6 Tungsram

Order Number:
125-014-49 

1970
NOS 

1

22,- 
6L6  GE
1960 
Original box 
NOS 
35,- 
6L6  Tronal
1980 
Very short used by previous owner.  Looks and tests like new.  Printing not burned. With Original box 
Used 
15,- for the pair 


6L6 Voskhod
Order Number:
114-052-32

1970

Russian designation is 6P3S. Supervb quality, that I have in originally sealed 50pcs boxes, and each tube is individually boxed. Cylinder glass, old fashioned construction. Extra stabile precision version, with all specs better than normal. Can be used at higher voltage. Tube bias tighter better specified. Wider range for filament voltage, and a lot more.

This tube has a gold screen grid! I have not seen that before. Normally screen grids are graphite coated. Click the next two pictures to see that.

 

 

NOS 
Stock
See main price list from menu

6SJ7
RCA, GE, 
Hewlett Packard 

 

1960 
Another NOS tube that is getting harder to find every year. Electrically equivalent to EF86, but octal based.  Ideal microphone or pre-amp tube, because of metal shielding, and low noise.   Come out of the boxes like new. 
NOS 
18 
11,- 

6V6
Reflektor

 

1980's
Lovely made smoked glass 6V6, with hand-blown tube base. So no machine made tube. Printed 6N6c, which is Russian for 6V6, they used other letters. This tube is basically the older octal version of the EL84. Use any EL84 schematic to make your own 6V6 amplifier, but also many 6V6 schematics are around. Why fight over the last remaining pieces of NOS EL84, while you can get this beautiful made version of this NOS 6V6 tube. Original colored boxes.
NOS
stock

See 
official
price list

4654/ EL50
TESLA

Order Number:
114-076-95 

1950's

VERY SPECIAL TUBE. A real three grid pentode, no beam pentode like 6L6 or KT66. Can be seen as a kind of (better!) EL34, but with another socket and top cap. Electrically comparable, and can be fitted in most EL34 circuits, but it may need some minimal tuning to get the correct bias. So not fully identical. When looking inside, with a magnifier lens, I see the huge, flat cathode and.... clearly visible is the GOLD control grid. This is finest quality, it has lower distortion then normal EL34. The first grid is yellow color, second grid is gray, and third gird is white nickel color. So yes it's a gold grid version. Very potential audio tube. The schematic given here, shows 64 Watt in Push Pull.

NOS black material Sockets are available, or gold plated Ceramic sockets from Yamamoto Japan.


See special page here.

NOS
stock
See 
price list 
for all tubes 
(download 
from the 
menu) 
6550  Shuguang 
.
Metal base 
NEW 
24,- 
ca 1960 
Potential HiFi tube 
NOS 
20,- 

717A 
Western Electric
1944 
Made by Raytheon,  for Western Electric.  On the box front is Western Electric, and on the box side and tubes  is written Raytheon. 
NOS 
See Price list
for all products
(download from
the menu)
  check under
Yamamoto HiFi


C3g ITT-Lorenz
Order Number:
114-144-48

 

C3g, ITT Lorenz

Out of the box came came one the nicest C3g versions I have ever seen, and the Lorenz (Stuttgart, Germany) brand has an excellent reputation. The tubes are individual numbered on the tube top, and have a nice, blue paper roll on it. They come out of the boxes crispy and new, as made just yesterday.

NOS 
Stock 

See 
price list 
for all tubes 
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from the 
menu) 

VERY IMPORTANT INFORMATION ABOUT C3g

I had an excellent contact who digged up C3g and C3m tubes. He was related to sales of those tubes for many years and so he knew the quantities, and the buyers. He contacting the original buyers, when he was retired. He was lucky several times to find old stock that way. This is why I have all those brands and versions. He told me there is really nothing left to find any more at OEM customers, not at the post, not at others, just nowhere at all. There were many, on wooden palettes. They greater part of those went to Japan, and I kept a small stock for myself. So what we have for sale here is a depleting stock, and prices may rise. Before stock cleaning of the German Post began in 1995, C3g was more expensive as NOS 2A3. From 1995...2000, 10's of thousands C3g, and C3m were sold for scrap prices by the German post. This may seem many tubes, but it is not. With 20 tubes per person, 10.000 tubes is just 500 persons. Just because they came all at once, this reduced market prices extremely, and people thought C3g was now cheap for ever. So, many HiFi lovers, and companies jumped on this wonderul, yet so cheap tube. As demand rised, no new NOS stocks were found any more. Related to the price of 40 US$ in 1995, todays prices of C3g should be much higher. All tubes that cost 40$ in 1995 are now worth 2...5x more. So one way or another, I expect this is going to happen to C3g as well. Just wait and you will see. They were going for 14 Euro in 2005, then 25 Euro in 2010, and now as I wrote this in in 2015, 50 Euro. Which is actually just 1995 price level. So prices are expected to rise further in the years to come.

C3gS ITT-Lorenz

Order Number:
114-145-90

 

S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.

Info sheet about C3g-C3gS-C3m

NOS 
Stock 

See 
price list 
for all tubes 
(download 
from the 
menu) 


C3g  Siemens

Order Number:
114-146-50 

ca 1965 

Long Life, finest low noise Audio tube, with gold pins, and individual series number.  C3g is a frame grid tube. (unlike C3m). Look at the excellent data it has:

C3g Pentode. connected

Triode connected

Gain 210 (WIth Ra=15k) 40
Ri 300k 2300 Ohms
Ia 13mA 17mA
Ua 220V 200V
Ug   -3.9V

Quantities of 50 pcs are packed in sealed  50pcs boxes.  Inside are individual boxed tubes. 

Info sheet about C3g-C3gS-C3m

Get a 16 page data sheet from out website, go to techcorner and click to "scanned Data sheets".

NOS 
Stock 
See 
price list 
for all tubes 
(download 
from the 
menu) 

C3gS Siemens

Order Number:
114-147-63

 

S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.

Info sheet about C3g-C3gS-C3m

     

C3g TFK

Order Number:
114-148-89

 

Standard tube.

 

NOS 
Stock 
See 
price list 
for all tubes 
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from the 
menu) 

C3gS TFK

Order Number:
114-149-97

 

S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.

Info sheet about C3g-C3gS-C3m

NOS 
Stock 
See 
price list 
for all tubes 
(download 
from the 
menu)

C3g Valvo

Order Number:
114-150-29

         

C3gS Valvo

Order Number:
114-151-93

  S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.      

C3m  TFK

Order Number:
114-081-39

.
One of the BEST (?) low noise audio tube ever made.   Ideal phono  tube. Low noise like a triode - amplification of a pentode.  With very nice TFK Logo engraved on the top.  

Info sheet about C3g-C3gS-C3m

Get the 16-page data sheet at our techcorner ( See website menu)

Very special 
Mesh tube 
inside. 

NOS 
Stock 

Original box.


C3m Siemens

Order Number:
114-010-90


 
One of the finest low noise audio tubes ever made.   Ideal phono  tube. Low noise like a triode - amplification of a pentode.  Most tubes are in military boxes, with date code, and Siemens order numbers on it, etc. 

Info sheet about C3g-C3gS-C3m

Get the 16-page data sheet at our techcorner ( See website menu)

Very special 
Mesh tube 
inside. 

NOS 
Stock 

See 
price list 
for all tubes 
(download 
from the 
menu) 


D3a Siemens


Order Number:
114-113-85

 

This is another fabulous tube, like C3m, C3g, etc. It can be used pentode or triode mode. Triple Mica Version, gold pins. These are from a lot made by AEG Telefunken ULM, for Siemens. I can tell because I bought this lot directly as surplus. I have those in original sealed 100 pcs. master cartons. Each tube individually boxed. This is a FRAME GRID pentode. Extremely rare with tubes. So use it as a very high gain pentode, ideal for Moving Coil amplifier, or others that need lowest noise. Yet it can do high voltage as well. I have even seen it as current source in a mu stage, very successfully.

Normally, a pentode if connected as a triode will have unlinear curves, so they are not made for that. Not so with D3a! Truly amazing, excellent original triode curves are published. When you choose the recommended operating point, the curves are very linar, and in triode mode this tube has a gain of 77x. How about that gain?! From the family of ECCxx tubes, I only find ECC83 which can do so, but ECC83 is very high impedance, and ECC83 gold pin NOS is expensive. D3a will give a gain of 77 at much lower impedance. So you see, this tube is really a first class product.

I have an original old pricelist. D3a had a factory price of 286DM one. That is 145 Euro. The factory was EAG Telefunken, and production was by them for Siemens. It was the most expensive small signal tube they made.

Data sheets: TFK - Philips

NOS 
Stock 

See 
price list 
for all tubes 
(download 
from the 
menu) 

E180F TESLA  

.
Packed in original bag. Beautiful Gold pin tube, also perfect in triode mode. Triode gain is 50, and Rp =2k3. For this price you can't go wrong! 3 Watt tube, wide wite flat cathode, for superb best linearity. SQ 10000h tubes, very tight to the specifications. Philips datasheet here . Link to external website, with computer made curves here.
NOS 
5,-
ECH84 TESLA  
.
Good printing, original box. Tests >100%. 
NOS 
7,- 
EF804S
 

Telefunken NOS, Original box. With <>. Mint appearance.

NOS
4
120,-
EF804S
  Siemens NOS, Original box. With <>. Mint appearance.
NOS
4
80,-
EF804S
  Lorenz NOS, Original box. With <>. Mint appearance.
NOS
2
80,-
EF86  SIEMENS
1967 
Good printing, original box. Tests 3.5mA.   Good starts at 2.1mA 
NOS 
35,- 
EF86  TFK
 
NOS. Original box. No <>. With test data. 
NOS 
5
55,- 
EF86  TF <>
 
Original sealed box.  <> tubes. Never opened. Sold in cellophane sealed box "as is", or tested before shipment, whatever you choose.  
NOS 
1
85,- 
(EF86) CV4085
GEC United Kingdom
1980's

By G.E.C. Valve. England. This is one of the finest EF86 ever made. GEC never sold tubes in bulk pack without boxes, so for NOS, make sure you always buy them with boxes.

NOS 
4
150,- 

EF86 Mullard

Order Number:
125-089-29

 
Solid plate. Amplitrex tested. White box. Test data here.
NOS 
55,- 

EF86 Mullard

Order Number:
125-090-93

 
Solid plate. Amplitrex tested. White box. Test data here.
NOS 
55,- 

EF86 Mullard

Order Number:
125-091-89

 
Mesh plate. Amplitrex tested. White box. Test data here.
NOS 

60,- 

EF86 Tungsram
.
Test >100%. Original box. 
NOS 
31,- 
EF86 Ultron
.
Test >100%. Original box. 
NOS 
22,- 
EF86 Phillips
.
Original yellow-red mini watt box.  Tests >100% 
NOS 
49,- 
EF86
RFT Neuhaus
.
Original quite old looking yellow-red mini watt boxes.  Tests >100% 
NOS 
35,- 

EF86 TESLA
.
Original Blue Yellow Box. Lower box in picture. Left tube in picture.
NOS
5
28,-

EF86 TESLA
.
Original Black Yellow Box, tested with Tesla TECHNOMAT. Special red stamp on box for that. Original Blue Yellow Box. Upper box in picture. Right tube in picture.
NOS
3
42,-


EF806S
TESLA
NOS, OB

Order Number:
111-100-55

.

Tesla NOS tubes have been a forgotten treasure for a long time. Well, these days are gone. It is so funny to see how the old story repeats over and over again. When you can buy them in quantities, nobody wants them, and when they're gone, everybody must have them. I remember I could buy TESLA KT88 for only 20€, right from the factory. And nobody was really interested. (Oh, it's only Tesla.. well, I can buy them another time.... That kind of talk). Now they're gone, I get still get requests from people who remember it from 10 years ago, that I had them. Only unfortunately nobody has them for sale, not even for 100€ each. The intermediate period, when they change from normally available to unavailable is always very short. So this is standard behavior for the NOS market, and I am convinced this will never change.

With ALL TESLA small signal tubes, like E88CC, or EF86, EF806S, etc, etc, we are now in the transition period (from available to unavailable). Please read the above short story again, to know what the really means.

Collectors start now t buying those TESLA EF806S, which is identical to TFK EF806S, and Ultra High quality tube, low noise long life version, to replace EF86.

With Original box. You Must read the data sheet for details, it an amazing data sheet It is the same series of ultimate tubes: ECC801S, ECC802S, ECC803S and EF806S. This is probably the best EF 86 in the world. These tubes have Rhodium plated pins. Rhodium is in the family of "hard-metals", same as Molybdenum, or Tungsten. So it won't come off. Rhodium has perfect contact properties, better than gold. (It is more expensive than gold also)

Tubes are in original Blue-Yellow Tesla boxes, with a quality stamp on the inside flap.

Pic1 - Pic2 - Data sheet

NOS
21

See 
price list 
for all tubes 
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from the 
menu) 

(EF86) CV4085
         

EF184 Philips

 

.
Original yellow-red mini watt box.  Tests >100% 
NOS 
15,- 


EL34

     


EL84
AEG, Germany

1970 

One single tube , with Funke W19 data. Pic1 - Pic2

NOS

Single 15 €

Pair:
Order Nr: 114-160-29

Quad:
order Nr: 114-161-72

  The most amazing is the constant quality of them. They all have identical data. No leakage, no drift, just perfect tubes, each of them. Beautiful Quality. We never get this back again.
NOS 
stock 
See 
normal 
price list 


EL84 SQ
6N14P-EB

Order Number:
114-036-27 (Pair)

Order Number:
114-037-39 (Quad)

1984
6N14-EB is a Special Quality EL84. This is NOS and the BEST EL84 ever made. Read here. Originally boxed. These need NO MATCHING. They come out of the original boxed MATCHED. Take any random four tubes, and they are a matched quad. This is quality from Russia!
NOS
stock
See 
price list 
for all tubes 
(download 
from the 
menu) 


GU50
Order Number:
114-043-09

CER. SOCKET
Order Number:
399-117-49



Triode Mode curves of GU50

1980's

You like "another" tube than KT88.... try GU50 (similar to EL152).

This is very powerful tube. It can do 40 Watt continious and , 55 Watt Peak. (Full data sheet here). Good printing, original box. Absolutely excellent Audio tube. Military NOS quality, no commercial tube like KT88.

PICTURES + SCHEMATICS HERE

WE SELL THE SOCKET FOR THIS TUBE ALSO.

They're lower cost and compared to GU50, KT88 is only a consumer tube. GU50 is extremely strong and very low distortion. Amazing quality Russian military old stock.

Note: These can not directly replace KT88, because the bias setting is another, and also the sockets are another type. We can not help you with modifications, specially not when you have no idea how to do it. We can only give you the data sheet, and for if you know yourself how to do this. Well, it is easy to do for a specialist.

The bulb is hard glass. It has Four (!) getters, and inside made from hard metal. You can hammer a nail in the wall with this tube. Much different from the fragile KT88. The metal piece can be removed from the top, using a hot air gun, like you use for hair drying. Bake the top, and the glue will get soft then, and brittle away. The bakelit tops you can srew off, and are even nice feet for a small amplifier, no joke, these are lovely made.


THIS IS THE POOR MAN'S 300B

300B, 300B-XLS, 320B-XLS COMPATIBLE in Triode mode!

This is the poor man's 320B-XLS. Apart from the socket, and 12.6V indirect heater, this tube in Triode mode can replace 300B directly, and most 300B-XLS and 320B-XLS applications as long as you stay below 40Watt continious.

Continious
Dissipation
Peak
Dissipation
GU50
40W
55W

300B

36W
40W
300B-XLS
40W
65W
320B-XLS
40W
65W

Please check the Triode curves! They are not just a "little bit" triode like, as you may know from KT88 or EL34 in triode mode. No... these are PERFECT triod curves, you may wish all power triodes were like that. Oh yes, and the price is very low. So take any 300B or 2A3 circuit, and there you go!

What else do you want? !!!

NOS,

OB

Stock See 
price list 
for all tubes 
(download 
from the 
menu) 
NF2
Telefunken
Order Number
125-109-92
 

SECRIT TIP. Also used by Jean Hiraga. Mint condition, Original Box tube. Some boxes still sealed since 1940.

See here fot AD1-NF2 Project. http://jacmusic.com/kits/index.htm

NOS,
OB
22,-
PL519
Philips
  Original Box tube.
NOS,
OB
35,-
PL519
Telefunken
  Original Box tube. On the glass it has "Made in Germany" and TFK Logo and Berlin datecode: B4004112.
NOS,
OB
55,-

SPECIAL
RE-tubes
Pages

Stock . . .

How these tubes are tested

FAQ Frequently Asked Questions

Attention: This is an export Price List, valid for companies in the European Community with a VAT Identification number, and for companies or private persons outside the European Community.    Inside Europe,  please ask for a quote, including VAT tax. (The VAT rate is 16% until Dec31st. 2006, and after that 19%)

Tube 
Date 
. .
Qty. 
EURO 


47 Ken-Rad
Order Number:
114-138-76


1930's

The 47 is a directly heated pentode, and it also has excellent triode characteristics. Not directly heated pentodes were made, because indirectly heated tubes were invented shortly after. Though a pentode, such tubes can give beautiful vintage sound, as they are indirectly heated, meaning always better tube curves.

The 47 was the "big" output tube of it's time. It will produce 2,7 Watt output power in SE, at very comfortable 250 Volt only. It works very good in push pull also.

I was able to get a lot of 22 pieces from somebody closing down his company. I never get such tubes again. Test results are wonderful. They come out of the boxes with shiny pins, and clean print, like new made yesterday. Even the boxes are perfect.

Beautifull black bulb, but not too dark, you can see inside very nice.

For such older tubes, I always prefer to test them on the Hickok I-177. Please let me know if you need matched pairs, we can do so with the Amplitrex AT1000. Price adder for this is small. Where can you get matched pairs of NOS tube like this :)

 

 
22
See 
price list 
for all tubes 
(download 
from the 
menu) 
350B Western Electric
 

White Box. Mint tube. Base is shiny and clean. Clear, yellow printing, no scratches whatsoever. Appearance is finest as can be. Amplitrex test reports included, with perfect test values. Test Data - Tube curves

General notes: 350B is an special version of 6L6. If you are interested in the difference, there is a great free source of information for this. It's the datasheets. We see there, the 350B curves remind of the 6L6, but they are not the same. The 350B is designed to work at lower voltage, and so it must work at higher current. To make the higher current possible, the heater current of 350B is much higher, thus giving more emission. The 350B heater is 10 Watt, whereas 6L6 has a 5 Watt heater. Also the glow picture of the 350B is very impressing, wow! 10 Watt is a lot of glow.

What may seem so audiophile about the 350B is "the brand" for some users, but in fact we are dealing here with a large improvement of the 6L6. The 6L6 was "the" audio work horse tube for a long time. However 6L6 emission is a bit low, and curves not so great, but the tube was cheap and good. All WE had to do, is add more emission. This allows the lower working voltage, yet at lower distortion than the 6L6.

Sorry for the price, but it recently an unbelievable hunt for those tubes has started. This a truely mint condition NOS one, optical and electrical. So I can't sell it cheap.

 
Va, Max
Singe Ended
Heater
Screen
Push Pull
Class A1
350B
360V
1.6A
4W
18Watt
@275Volt
6L6
375V
0.9A
3.5W
13,8Watt
@255Volt
NOS
1
690,-

6AK5 Mullard
unknown

The tubes are stamped CV4010 which is the Mullard Designation for this tube. Mint condition, beautifull tubes.
For Yamamoto phono amp, pre amp, or others.

NOS 
9
28,-

6AQ5  Tung Sol
1959 
Used in Fender guitar amps. 
NOS 

2

12,- 


6L6 Tungsram

Order Number:
125-014-49 

1970
NOS 

1

22,- 
6L6  GE
1960 
Original box 
NOS 
35,- 
6L6  Tronal
1980 
Very short used by previous owner.  Looks and tests like new.  Printing not burned. With Original box 
Used 
15,- for the pair 


6L6 Voskhod
Order Number:
114-052-32

1970

Russian designation is 6P3S. Supervb quality, that I have in originally sealed 50pcs boxes, and each tube is individually boxed. Cylinder glass, old fashioned construction. Extra stabile precision version, with all specs better than normal. Can be used at higher voltage. Tube bias tighter better specified. Wider range for filament voltage, and a lot more.

This tube has a gold screen grid! I have not seen that before. Normally screen grids are graphite coated. Click the next two pictures to see that.

 

 

NOS 
Stock
See main price list from menu

6SJ7
RCA, GE, 
Hewlett Packard 

 

1960 
Another NOS tube that is getting harder to find every year. Electrically equivalent to EF86, but octal based.  Ideal microphone or pre-amp tube, because of metal shielding, and low noise.   Come out of the boxes like new. 
NOS 
18 
11,- 

6V6
Reflektor

 

1980's
Lovely made smoked glass 6V6, with hand-blown tube base. So no machine made tube. Printed 6N6c, which is Russian for 6V6, they used other letters. This tube is basically the older octal version of the EL84. Use any EL84 schematic to make your own 6V6 amplifier, but also many 6V6 schematics are around. Why fight over the last remaining pieces of NOS EL84, while you can get this beautiful made version of this NOS 6V6 tube. Original colored boxes.
NOS
stock

See 
official
price list


12GN7A (12HG7)
Sylvania
1980's 11.5 Watt. Potential Audio type. Can be wired for 6,3V or 12V. Nice as driver tube with Lundahl LL1660 interstage. Optically like a 6H30 , but 12GN7A is a pentode. Probably triode connected it will give a great triode. Secret tip?
NOS
3
8,-

4654/ EL50
TESLA

Order Number:
114-076-95 

1950's

VERY SPECIAL TUBE. A real three grid pentode, no beam pentode like 6L6 or KT66. Can be seen as a kind of (better!) EL34, but with another socket and top cap. Electrically comparable, and can be fitted in most EL34 circuits, but it may need some minimal tuning to get the correct bias. So not fully identical. When looking inside, with a magnifier lens, I see the huge, flat cathode and.... clearly visible is the GOLD control grid. This is finest quality, it has lower distortion then normal EL34. The first grid is yellow color, second grid is gray, and third gird is white nickel color. So yes it's a gold grid version. Very potential audio tube. The schematic given here, shows 64 Watt in Push Pull.

NOS black material Sockets are available, or gold plated Ceramic sockets from Yamamoto Japan.


See special page here.

NOS
stock
See 
price list 
for all tubes 
(download 
from the 
menu) 
6550  Shuguang 
.
Metal base 
NEW 
24,- 
ca 1960 
Potential HiFi tube 
NOS 
20,- 

717A 
Western Electric
1944 
Made by Raytheon,  for Western Electric.  On the box front is Western Electric, and on the box side and tubes  is written Raytheon. 
NOS 
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  check under
Yamamoto HiFi
 
C3g C3m info. Important.
  I had an excellent contact who digged up C3g and C3m tubes, by contacting the original buyers. He was lucky several times to find old stock that way. This is why I have all those brands and versions. He told me there is really nothing left to find any more at OEM customers, not at the post, not at others, just nowhere at all. There were many, on wooden palettes. They greater part of those went to Japan, and I kept a small stock for myself. So what we have for sale here is a depleting stock, and prices may rise.      


C3g ITT-Lorenz
Order Number:
114-144-48

 

Out of the box came came one the nicest C3g versions I have ever seen, and the Lorenz (Stuttgart, Germany) brand has an excellent reputation. The tubes are individual numbered on the tube top, and have a nice, blue paper roll on it. They come out of the boxes crispy and new, as made just yesterday.

NOS 
Stock 

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C3gS ITT-Lorenz

Order Number:
114-145-90

 

S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.

Info sheet about C3g-C3gS-C3m

NOS 
Stock 

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C3g  Siemens

Order Number:
114-146-50 

ca 1965 

Long Life, finest low noise Audio tube, with gold pins, and individual series number.  C3g is a frame grid tube. (unlike C3m). Look at the excellent data it has:

C3g Pentode. connected

Triode connected

Gain 210 (WIth Ra=15k) 40
Ri 300k 2300 Ohms
Ia 13mA 17mA
Ua 220V 200V
Ug   -3.9V

Quantities of 50 pcs are packed in sealed  50pcs boxes.  Inside are individual boxed tubes. 

Info sheet about C3g-C3gS-C3m

Get a 16 page data sheet from out website, go to techcorner and click to "scanned Data sheets".

NOS 
Stock 
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C3gS Siemens

Order Number:
114-147-63

 

S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.

Info sheet about C3g-C3gS-C3m

     

C3g TFK

Order Number:
114-148-89

 

Standard tube.

 

NOS 
Stock 
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C3gS TFK

Order Number:
114-149-97

 

S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.

Info sheet about C3g-C3gS-C3m

NOS 
Stock 
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C3g Valvo

Order Number:
114-150-29

         

C3gS Valvo

Order Number:
114-151-93

  S-Version with selected parameters. The S-Version is more tighter to the datasheet. My measurements have verified this is indeed so.      

C3m  TFK

Order Number:
114-081-39

.
One of the BEST (?) low noise audio tube ever made.   Ideal phono  tube. Low noise like a triode - amplification of a pentode.  With very nice TFK Logo engraved on the top.  

Info sheet about C3g-C3gS-C3m

Get the 16-page data sheet at our techcorner ( See website menu)

Very special 
Mesh tube 
inside. 

NOS 
Stock 

Original box.


C3m Siemens

Order Number:
114-010-90


 
One of the finest low noise audio tubes ever made.   Ideal phono  tube. Low noise like a triode - amplification of a pentode.  Most tubes are in military boxes, with date code, and Siemens order numbers on it, etc. 

Info sheet about C3g-C3gS-C3m

Get the 16-page data sheet at our techcorner ( See website menu)

Very special 
Mesh tube 
inside. 

NOS 
Stock 

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D3a Siemens


Order Number:
114-113-85

 

This is another fabulous tube, like C3m, C3g, etc. It can be used pentode or triode mode. Triple Mica Version, gold pins. These are from a lot made by AEG Telefunken ULM, for Siemens. I can tell because I bought this lot directly as surplus. I have those in original sealed 100 pcs. master cartons. Each tube individually boxed. This is a FRAME GRID pentode. Extremely rare with tubes. So use it as a very high gain pentode, ideal for Moving Coil amplifier, or others that need lowest noise. Yet it can do high voltage as well. I have even seen it as current source in a mu stage, very successfully.

Normally, a pentode if connected as a triode will have unlinear curves, so they are not made for that. Not so with D3a! Truly amazing, excellent original triode curves are published. When you choose the recommended operating point, the curves are very linar, and in triode mode this tube has a gain of 77x. How about that gain?! From the family of ECCxx tubes, I only find ECC83 which can do so, but ECC83 is very high impedance, and ECC83 gold pin NOS is expensive. D3a will give a gain of 77 at much lower impedance. So you see, this tube is really a first class product.

I have an original old pricelist. D3a had a factory price of 286DM one. That is 145 Euro. The factory was EAG Telefunken, and production was by them for Siemens. It was the most expensive small signal tube they made.

Data sheets: TFK - Philips

NOS 
Stock 

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E180F TESLA  

.
Packed in original bag. Beautiful Gold pin tube, also perfect in triode mode. Triode gain is 50, and Rp =2k3. For this price you can't go wrong! 3 Watt tube, wide wite flat cathode, for superb best linearity. SQ 10000h tubes, very tight to the specifications. Philips datasheet here . Link to external website, with computer made curves here.
NOS 
5,-
ECH84 TESLA  
.
Good printing, original box. Tests >100%. 
NOS 
7,- 
EF804S
 

Telefunken NOS, Original box. With <>. Mint appearance.

NOS
4
120,-
EF804S
  Siemens NOS, Original box. With <>. Mint appearance.
NOS
4
80,-
EF804S
  Lorenz NOS, Original box. With <>. Mint appearance.
NOS
2
80,-
EF86  SIEMENS
1967 
Good printing, original box. Tests 3.5mA.   Good starts at 2.1mA 
NOS 
35,- 
EF86  TFK
 
NOS. Original box. No <>. With test data. 
NOS 
5
55,- 
EF86  TF <>
 
Original sealed box.  <> tubes. Never opened. Sold in cellophane sealed box "as is", or tested before shipment, whatever you choose.  
NOS 
1
85,- 
(EF86) CV4085
GEC United Kingdom
1980's

By G.E.C. Valve. England. This is one of the finest EF86 ever made. GEC never sold tubes in bulk pack without boxes, so for NOS, make sure you always buy them with boxes.

NOS 
4
150,- 

EF86 Mullard

Order Number:
125-089-29

 
Solid plate. Amplitrex tested. White box. Test data here.
NOS 
55,- 

EF86 Mullard

Order Number:
125-090-93

 
Solid plate. Amplitrex tested. White box. Test data here.
NOS 
55,- 

EF86 Mullard

Order Number:
125-091-89

 
Mesh plate. Amplitrex tested. White box. Test data here.
NOS 

60,- 

EF86 Tungsram
.
Test >100%. Original box. 
NOS 
31,- 
EF86 Ultron
.
Test >100%. Original box. 
NOS 
22,- 
EF86 Phillips
.
Original yellow-red mini watt box.  Tests >100% 
NOS 
49,- 
EF86
RFT Neuhaus
.
Original quite old looking yellow-red mini watt boxes.  Tests >100% 
NOS 
35,- 

EF86 TESLA
.
Original Blue Yellow Box. Lower box in picture. Left tube in picture.
NOS
5
28,-

EF86 TESLA
.
Original Black Yellow Box, tested with Tesla TECHNOMAT. Special red stamp on box for that. Original Blue Yellow Box. Upper box in picture. Right tube in picture.
NOS
3
42,-


EF806S
TESLA
NOS, OB

Order Number:
111-100-55

.

Tesla NOS tubes have been a forgotten treasure for a long time. Well, these days are gone. It is so funny to see how the old story repeats over and over again. When you can buy them in quantities, nobody wants them, and when they're gone, everybody must have them. I remember I could buy TESLA KT88 for only 20€, right from the factory. And nobody was really interested. (Oh, it's only Tesla.. well, I can buy them another time.... That kind of talk). Now they're gone, I get still get requests from people who remember it from 10 years ago, that I had them. Only unfortunately nobody has them for sale, not even for 100€ each. The intermediate period, when they change from normally available to unavailable is always very short. So this is standard behavior for the NOS market, and I am convinced this will never change.

With ALL TESLA small signal tubes, like E88CC, or EF86, EF806S, etc, etc, we are now in the transition period (from available to unavailable). Please read the above short story again, to know what the really means.

Collectors start now t buying those TESLA EF806S, which is identical to TFK EF806S, and Ultra High quality tube, low noise long life version, to replace EF86.

With Original box. You Must read the data sheet for details, it an amazing data sheet It is the same series of ultimate tubes: ECC801S, ECC802S, ECC803S and EF806S. This is probably the best EF 86 in the world. These tubes have Rhodium plated pins. Rhodium is in the family of "hard-metals", same as Molybdenum, or Tungsten. So it won't come off. Rhodium has perfect contact properties, better than gold. (It is more expensive than gold also)

Tubes are in original Blue-Yellow Tesla boxes, with a quality stamp on the inside flap.

Pic1 - Pic2 - Data sheet

NOS
21

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(EF86) CV4085          

EF184 Philips

 

.
Original yellow-red mini watt box.  Tests >100% 
NOS 
15,- 


EL34

     


EL84
AEG, Germany

1970 

One single tube , with Funke W19 data. Pic1 - Pic2

NOS

Single 15 €

Pair:
Order Nr: 114-160-29

Quad:
order Nr: 114-161-72

  The most amazing is the constant quality of them. They all have identical data. No leakage, no drift, just perfect tubes, each of them. Beautiful Quality. We never get this back again.
NOS 
stock 
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price list 


EL84 SQ
6N14P-EB

Order Number:
114-036-27 (Pair)

Order Number:
114-037-39 (Quad)

1984
6N14-EB is a Special Quality EL84. This is NOS and the BEST EL84 ever made. Read here. Originally boxed. These need NO MATCHING. They come out of the original boxed MATCHED. Take any random four tubes, and they are a matched quad. This is quality from Russia!
NOS
stock
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GU50
Order Number:
114-043-09

CER. SOCKET
Order Number:
399-117-49



Triode Mode curves of GU50

1980's

You like "another" tube than KT88.... try GU50 (similar to EL152).

This is very powerful tube. It can do 40 Watt continious and , 55 Watt Peak. (Full data sheet here). Good printing, original box. Absolutely excellent Audio tube. Military NOS quality, no commercial tube like KT88.

PICTURES + SCHEMATICS HERE

WE SELL THE SOCKET FOR THIS TUBE ALSO.

They're lower cost and compared to GU50, KT88 is only a consumer tube. GU50 is extremely strong and very low distortion. Amazing quality Russian military old stock.

Note: These can not directly replace KT88, because the bias setting is another, and also the sockets are another type. We can not help you with modifications, specially not when you have no idea how to do it. We can only give you the data sheet, and for if you know yourself how to do this. Well, it is easy to do for a specialist.

The bulb is hard glass. It has Four (!) getters, and inside made from hard metal. You can hammer a nail in the wall with this tube. Much different from the fragile KT88. The metal piece can be removed from the top, using a hot air gun, like you use for hair drying. Bake the top, and the glue will get soft then, and brittle away. The bakelit tops you can srew off, and are even nice feet for a small amplifier, no joke, these are lovely made.


THIS IS THE POOR MAN'S 300B

300B, 300B-XLS, 320B-XLS COMPATIBLE in Triode mode!

This is the poor man's 320B-XLS. Apart from the socket, and 12.6V indirect heater, this tube in Triode mode can replace 300B directly, and most 300B-XLS and 320B-XLS applications as long as you stay below 40Watt continious.

Continious
Dissipation
Peak
Dissipation
GU50
40W
55W

300B

36W
40W
300B-XLS
40W
65W
320B-XLS
40W
65W

Please check the Triode curves! They are not just a "little bit" triode like, as you may know from KT88 or EL34 in triode mode. No... these are PERFECT triod curves, you may wish all power triodes were like that. Oh yes, and the price is very low. So take any 300B or 2A3 circuit, and there you go!

What else do you want? !!!

NOS,

OB

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NF2
Telefunken
Order Number
125-109-92
 

SECRIT TIP. Also used by Jean Hiraga. Mint condition, Original Box tube. Some boxes still sealed since 1940.

See here fot AD1-NF2 Project. http://jacmusic.com/kits/index.htm

NOS,
OB
22,-
PL519
Philips
  Original Box tube.
NOS,
OB
35,-
PL519
Telefunken
  Original Box tube. On the glass it has "Made in Germany" and TFK Logo and Berlin datecode: B4004112.
NOS,
OB
55,-

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