Lundahl Transformer
Manufacturer of  Ultra High Quality Audio Transformers
    Introduction (the Part number below, is the same as in the pricelist
Part 1
   Tube Power Supply Chokes)
Part14..21
   Tube Output transformers
Part 2
   Filament Chokes / High Current Chokes
Part 22
   Tube Mains transformers with DC cancellation
Part 3
   Plate (anode)  Chokes
Part 23
   Mains Cleaning transformers with DC cancellation
Part 4
   Grid Choke
Part 23
   Transformer Covers (Housings)
  Interstage
Part 25
   Various transformers, not mentioned here
Part 6
   Signal Input      
Part 7
   Signal Output      
Part 9
   Moving Coil      
Part 10
   Guitar Input
Tech1
   (technical info) PPZ transformers
Part 11
  

Microphone
Tech2
   (technical info) Product Storage
Part 12
   For Digital Audio. Finest Quality
Tech3
   (technical info) Amorph Cores
Part 13
   Interconnect Solutions
Tech4
   (technical info) DATASHEET DOWNLOAD

 

Lundahl Interstage transformers, the secret tip from Sweden.

 
Type
Ratio
Short Info
Short Info
Small Size
1+1 : 1+1
Can go to 100kHz with peaking capacitor
5...20 mA or PP
Small Size
1+1 : 1+1
Can go to 60kHz without peaking capacitor
5...20 mA or PP
         
Medium Size
1+1+1+1 : 2.25+2.25
Universal Genius, see the many "Alt" connections in the datasheet
Medium Current Version
Medium Size
1+1+1+1 : 1.75+1.75
Universal Genius, see the many "Alt" connections in the datasheet
Medium Current Version
         
Medium Size
9+9 : 1+1+1+1+1
Line Output transformer
Low...Medium current
         
Medium Size
1+1+1+1 : 2+2
Universal Genius, see the many "Alt" connections in the datasheet
High Current Version
         
Medium Size
1:2 or 1:1
Special Version, to be driven by 300B or 2A3 or similar tubes.
60ma or 80mA

Note: LL1660 and LL1692A are almost identical, the only difference is the windings ratio.

 

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(Last updated: 02-Jan-2012 15:07 )