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TRIODES
(Last updated: 16-Jul-2014 17:53 )

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 19% VAT tax.

Tube 
Year 
Description
Condition
Qty
EURO 

Some NOS 300B etc

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2A3 RCA
Order Number:
125-159-84

1950's

Original 2A3 by RCA

Printing on tubes is good, and unscratched. Boxes very good condition, stored clean and dry all those years. Tubes are in macthed pairs, with with Ampitrex certificates.

Sold as Amplitrex matched pairs, with printed test report. Perfectly matched, very strong emission. This is prime quality NOS. You have any requirement? These tube fulfil it.

Pic1 - Pic2 - Box1 - Box2 - Packing

NOS-OB 
3 Pair 

420,-

for a matched pair  

6C4
RCA

 

1960 
Comparable to single system ECC82.  Want best channel separation? = Take this tube! 
NOS-OB 
8,- 



6C4C (6Volt 2A3)
Svetlana Winged =C=


Order Number:
114-085-35

1973

6C4C = 6S4S = 6B4G

This is a 2A3 from the early 1970's but with 6.3V Filament, and an Octal base. All other data is fully equivalent to 2A3. MINT Quality item.

Why trouble yourself with so called NOS 2A3 that are expensive, and perhaps not really good? Take this EXCELLENT tube, and use 6.3Volt heater and Octal base. Very large, double getter flash.

 

Sold in Amplitrex matched pairs. Quads are no problem.

These run on EVERY 2A3 schematic, but you need to change the heater voltage to 6.3V 900mA, and these have an octal base. For the rest they are identical. Perfect SVETLANA NOS WINGED-C NOS from the early 1970's when the Russian production was at it TOP of performance. This quality is like Russian Telefunken. Invest your money is this is safer than in stocks.

Do not confuse with today's Winged-C quality, which is consumer oriented, and not industrial or military any more. Furthermore, do not confuse with today's Svetlana S-Logo, which is not even made in the Svetlana factory.

NOS
Stock
See normal price list from the menu


6C19N

Svetlana Winged =C=


Order Number:
114-078-68

1980's

This tube is the small sister of the 6C33. Superb Quality 11 Watt Triode, with very low Rp (400 Ohms) at relatively low plate voltage. Can be used nicely in OTL amplifiers.

Also nice as SE tube. If you put 4 parallel you get an 44 Watt, 100 Ohms tube. Ideal to connect to the Lundahl LL1627-185mA (or amorph version LL1627AM.185)

Another fine application is as interstage transformer driver, since interstage driver tubes must have low impedance. A good interstage transformer is the LL1660-25mA, and wire it for a factor 4,5 step up. 200V 25mA is a good working point. The tube itself has a gain of 8, making the total gain 36. That drives a 2A3 directly. Who needs more gain can also use the line output transformer LL1689 and use it reversed as a 1:9 step up. This is difficult to drive with a tube, but hey.. it is no problem for this tube.

This tube features absolutely latest technology. It had gold grids, and a Zirconium top getter. At high temperature, the Zirconium getter gets active, and keeps the tube fresh as on the first day it was made. These getters are better than Barium getters, but can only be used in tubes with a very hot spot inside, to mount it on. This tube is made to run on high power. No need for de-rating. Also the glow picture is amazingly nice, since the cathode can be seen from the sides.

Best of all, they are available in quantities and for a low price... What else do you need...?

 

NOS
Stock 
see normal 
price list 
6C33
Ujanov
 

We have those in original sealed boxes, or from original 50-packs. Prices are different, though inside is the same tube.

With the sealed boxes, this is what you get. So note, with sealed boxes you always buy a collectors item. Opening them, means no return, no matter what was inside. Well I opened some of course, and inside were finest tubes, untouched.

Some schematics with 6C33 and many other are here

Break up a 6C33 and see what is inside

NOS
Stock
See normal price list from the menu
6H7 
Russia
1960
Russian Equivalent 6N7 ( ECC31)
NOS 
5,- 

RCA 6N7
1944

RCA 6N7 (ECC31)

Note: ECC31 is not a 6SN7.

Lovely smoked glass Version. Date on boxes 1944. This is Navy Quality from WW2. The best quality ever made. These are RCA, smoked glass, a nice pair, original nice boxes, not opened 100 times.

Tests:

Pic1 - Pic2 - Pic3 - Pic4

NOS 

65,-
for the pair.  

6SL7 Haltron UK
Order Nr:
125-115-84

 

Original box, with small control paper inside, code number on paper is the same as on the tube 3009. Don't know what that number means. Made in England, with Amplitrex computer test certificate included. Click here for test data. (I put the certificate, and original small control slip inside the box). Nice collector's item. Sorry, just one.

Read more on the 6SL7 page.

NOS
1
15,-


6SN7
Toshiba Japan Order Nr:
114-080-07

.

6SN7, some say: what comes in is what comes out. What we have is a LONG PLATE Version, with longer glass than normal. Reliable, stabile, and good sounding. Beautiful NOS tube, they test excellent, all of them.

Read more on the 6SN7 page.

NOS
Stock
see normal 
price list 

12SN7 
RSD

 

1963 
Original box with date stamp. 
NOS 
12,- 
.
2.5V Driver Triode, UX5 Base. Sockets are on stock. Gain = 9 
Data sheet at www.jacmusic.com (Techcorner)
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Boonton 45 (102A)

Full description here

NOS Pair  


76 Raytheon
Order Number:
114-114-95

 

 

Originally boxed, Raytheon. Shouldered glass.

BOX picture: Click here

NOS
Stock
See normal price list from the menu
5687WA/ WB
See also: E182CC 
1986 
Low impedance driver, as used by Audio Note. Nice blue printing on the tube.   Higher Quality JAN tested version. 
NOS 
Stock
see normal 
price list 

5687 Philips
1981

Good driver tube, similar to E182CC, but smaller dimensions. 5687 is a low output impedance tube, with high filament power and is quite bright glowing.

This tubes are from drying up stock everywhere. When you are interested, you buy them now, as prices will go up.

NOS
Stock
See normal price list from the menu
5691
.

5691 has Tungsten heater wires,  lowest microphonics,  and the  famous moisture proof red-base. It is rated for 500G shock, meaning you can drop it on the floor. NOS  5691 is the tube to use, when you want the BEST 6SL7 ever made.

Click on above picture for more information

NOS
2

125,-

Sorry these are sold


6021W Philips

pencil tube

1982
Double triode, low noise audio, very long life. Miniature tube with flying leads. Perfect Audio tube! Secret tip. Lovely build, with colored printing on the glass. Data sheet on our website. Use it for printed circuits, or free wire it directly inside the amplifier, same way as you mount resistors. Light weighted, can be mounted with it's own wires only, needs no mechanical support. Duende tube rings available for this type. This is the perfect tube for phono amps or other pre-amps. Special Teflon / Gold plated socket available for this tube. This socket is for PCB only. For chassis wiring, you can just wire the tube in, like normal components. Another picture.
NOS 
Stock
see normal 
price list 

6080WC Philips ECG

Order Nr. 100pcs
114-170-91 (490 Euro)

Order Nr. 1pcs
114-019-93 ( 7 Euro)

1980


All tubes checked for fine optical appearance, and large bright getter, and shiny metal sockets, no oxide.

Very nice high power tube, with two triodes in one bulb.
Think of this tube as a small 6C33.

GOOD TUBES. STOCK CLEARANCE.

NOS
Stock 

7 Euro one

490 Euro 100pcs.

6080 Sylvania
1980
Nice green logo. Original Box. Test very strong. Only sell the four. Price is for one tube, as always.
NOS
4
16,-
5628, Raytheon, Chatham
3x Raytheon. 1x Chatham. Originally boxed. BIG brother of 6080. 2x30 Watt dual Triode, with graphite Anodes, and two parallel cathodes for each Triode. So four cathodes in one bulb. Beautiful tube. You can build a 2x8 Watt Stereo SE amplifier with just ONE OF THOSE. Or a 50 Watt push pull amplifier with just one tube per channel. Only sell the four pcs together. Rare as NOS, OB. Gain = 9. Rp=245 Ohms. Nice, normal HiFi Bias point. Uses normal SE transformers, like LL1629-90mA Lundahl transformer at 1k2 primary. This is a frame grid tube, with gold plated grids :) In Google books you can read the Morgan Jones Book for free. It's called "Valve Amplifiers". Look at page 440. He runs them at full 2x 30Watt. I do not recommend to heat it at full power, but more like 2x23 Watt. Runs for instance nicely at 90mA, 280Volts.
NOS
4

59,- each

6021
  Pencil tube. We have Teflon /Gold sockets.      

6072
Ken-Rad

 

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Ken Rad. White box. Etched USA printing. K-R logo very faint. Printed Test report with Amplitrex AT1000 included, excellent values. This is a triple mica tube, identical to 12AY7.

NOS

2
35,-

6112 Philips
 

Pencil tube. We have Teflon /Gold sockets, and Teflon tube rings too. 6112 is the "pencil" Version of ECC83 or 6SL7. Tube data is not fully equivalent, but close. Consider to put both sections of the 6112 in parallel. Some do this with 6SL7 too. This will give you the same gain, but plate current will be double, and output impedance will be half.

Look here for a very nice, balanced phono pre-amp with the 6112 tube. For lower noise, you should take the MM version, and use a Lundahl MC transformer.

http://www.tubecad.com/july99/page11.html

     

AD1-VALVO
Estimated 1940...1950

This is NOS VALVO branded AD1, but inside I see the characteristic (getter pill) TELEFUNKEN system. These are the one and only best ever AD1. In a nice VALVO box, but not belonging to this tube originally. Sorry for the price, but try to find REAL AD1 NOS and a perfect curves plot along with it.

The tube has an original label on it: "GEGENTAKT" which means it is possible to use it also for a push pull amplifier. This was a selection for higher peak emission. So this tube is the finest of all AD1 you can ever get. It confirms from the tube curves, they are magnificent. I bought tube from a collector who is getting too old, and selling off his stuff. I know definitely he never used it, only test it as on a Funke W19 before selling to me.

Valvo bought the early AD1 (barium pill) from Telefunken. The later, Barium coated versions, is the Siemens EbIII rebranded or the Tungsram /Philips rebranded. The Tungsram /Philips have a reputation to develop grid current or gas if you buy NOS. However the TFK barium pill tubes are finest quality. As far as I experienced myself, any NOS comes out of the box with exact specifications, as if put in yesterday. They do not even need a burn in. It needs no explanation why tube collectors prefer the NOS Barium pill TFK tubes. You recognize those by a bubble on the middle of the plate, inside which was the Barium pill before closure of the bulb. By the activation process, they managed to have that evaporated and have it condensed on the filament. I think with an electrostatic field. At that time already a "secret" process, and today the real secrets of the process has been lost as most old engineers have passed away now.

NOS
1
700,-

D3A Siemens

This is not a pentode, which has original (factory intended) use as Triode as well. Please check here for the triode connected curves, as originally by Telefunken. This is from the "D" Series of German Post tubes, in which family of the "C" Series you find treasures like C3m, C3g.

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 77, even at maximum 4.5 Watt! From the family of ECCxx tubes, I only find ECC83 which can do so, but ECC83 is very high impedance, 1.2mA only. 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.

Recommended SE transformer LL1660-25mA.

Full full details with more pictures check the pentode page.

NOS 
Stock
see normal 
price list 

E182CC 
Mullard
estimated 
1980 

E182CC is an upgrade for the 5687 tube. E182CC is larger size, with quite long, flat boxed plates, for  better linearity. 

NOS 
Stock 
picture
see normal 
price list 
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Equivalents:  12AT7, ECC801S, E81CC, 6201  
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Equivalents:  12AU7, ECC802, E82CC 
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.

ECC83 page here

Equivalents:  12AX7, ECC803, E83CC 

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Equivalents:  6DJ8, ECC808, E88CC, 6922 
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ECC85  Neuhaus
.
Used. Test at 8.5 + 10.5 at Funke W19. Good starts at 7.
NOS 
5,-
ECC86  TFK
.
Original sealed box.  Never opened. With series number "7111100".  So with <>.  Sold in sealed box "as is", or we open it, and test before shipment, at your choice.
NOS 
20,- 
ECC86  VALVO
.
Original box. Tests >100% 
NOS 
14,- 


GM70

UlYanov

1980's

From original factory bulk packs. (see pictures). Go to GM70 page here

Note - we stock only graphite plates at the moment. Copper plate is extremely rare and sold out. Graphite is electrically better, it can take more electrical overload or forgive mistakes. Copper is more shock/drop proof.

 

.

Stock see normal 
price list 

PX4

Mesh Version
1998
Excellent PX4. Metal base with ceramic bottom. Mesh plates. Data sheet available, check here.
NOS
.
see normal 
price list 


SPECIAL
RE-tubes
Pages

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RS291 TFK
Order Number:
125-004


1943

These are at a good place here, because today's application is to triode connect those. This is a very nice looking pair. Fully identical looking, test fully identical and extremely strong. Wow!!!! 211 or 845 are toys compared to those old Telefunken jewels. One is believed to be NOS, the other has almost no use.

Connectors at the bottom and top are bananas, side is a fork. Original connection set for the side connector is with the tubes. CLick here for more info.

  2
390 ,-Euro for the pair.

 

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