Transformer lists for projects.

[Mbira]

Hello,
I am starting this thread as a (hopefully) meta contribution. This is a result of my own ongoing confusion as to what transformers I can use with what projects. This is to help me when I come across a big stack of iron that I don't know what to do with. I would like to list each major project we are doing with the transformers that are used for the job. options will be seperated by a semi-colon ";"

So to start:

LA2A:

Input: Jensen JT-11-P1; Jensen JT-11-P;
UTC A-10; A-12; A-16; A-17; A-18; A-19; A-24 (wired backwards); A26 (wired backwards);HA100X; HA-100; HA-101; HA-101X; HA-104; HA-105; HA-106; HA-107; HA-127; LS-10; LS-10X; LS-12; LS-12X; LS-26;
Sowter 4383;
Triad: HS-8; HS-23; HS-25; HS-15; HS-27; HS-28;
Stancor: A-4351, A-4352, A-4726, A-4408
Peerless: K-054-Q; K-063-A; G-323-Q; K-281-Q; G-252-Q;
Thordarson: 25A58; 20A31; 20A08;
Kenyon: K-200; K-201; K-203; K-204; K-205; K-300; K-302; K-304;

Output: Jensen JT-10K61-1M;
UTC A-24; UTC A-25; UTC A-26; UTC-HA-113; UTC HA-114; UTC HA-133; Triad HS-50; Triad HS-52;
Peerless S-217-D; Peerless S-448-Q;
Sowter 8940;
Stancor 3250; 3315;
Thordarson 25S12; Thordarson 24S114;
Crimson Model CT-400G

Power: Allied 6K88VG;

Pultec: (Gyraf)

Input: Lundahl LL5402;
Jensen JT-11-P;
Quote from CJ "Any 600:600, 20-20khz, +15 dbm x-former will work.
Too many to list."

Output: Lundahl LL5402
Jensen JT-10K61-1M;
UTC A-24; UTC A-25; UTC A-26; UTC-HA-113; UTC HA-114; UTC HA-133; Triad HS-50; Triad HS-52;
Peerless S-217-D; Peerless S-448-Q;
Sowter 8940;
Stancor 3250; Stancor 3315;
Thordarson 25S12; Thordarson 24S114;

Power:

G9:

Input: OEP A262-A3E;
Lundahl LL1528; Lundahl LL1538

Output: OEP A262-A2E; Lundahl LL5402

Power:

G1176:

Output: Lundahl LL5402; OEP

Input: Lundahl LL1540; OEP

Power: Digikey TE62045-ND; Digikey TE62055-ND

Green Pre:

Power: Dagnall D2035 (newark or Farnell)


312:

input:Altran C-3402-2;
Lundahl LL1538XL; LL1674 (amphous core); LL1636 (amphorus core);
Cinemag CM-75101APC ;
Jensen JT-115K-EPC;Jensen JT110K-HPC
Sowter 9820;

outputprofile 4804;
Cinemag CMOQ-2L;
Sowter 9825

Power:

Neve 1272, 1290, or 1063/73 minus EQ

mic input Marinair T1444; T1454;
St. Ives VT22670.
Carnhill (who purchased St. Ives) VTB9045
Sowter 9145
JLM Audio 1:4 ? Two of them as a seriesarallel (1:2) or parallelarallel (1:4) pair.
Lundahl LL1538 ? Change cap on the secondary from 180pF to 390pF.
- OEP A262A3E ? Wired for seriesarallel (1:3.225).
- or use half of 31267 in reverse for 1:2

line input Marinair T1422; T1442; T1452;
St. Ives VT22671.
Carnhill VTB9046
Sowter 9165

output Marinair LO1166,
St. Ives VT23326(?).
Carnhill VTB9049 (original replacement), VTB1148 (narrow for rack mounting), or VTB1847 (PCB version w/breakout leads).
Sowter 8751 (regular size), or 9160 (narrow version for 1RU cases).
- JLM Audio 1:1:1DC ? Does not require zobel network of 1.5k & .01uF or 600 ohm load on the secondary.

 

[CJ]

Cool idea!
You should mention that the Pultec is the Gyraff ver. w/o the innerstage x-former.

Outputs for the LA2a and Pultec could also be Triad HS-50, Triad HS-52, Peerless S-217-D, Peerless S-448-Q, UTC A-25, UTC A-26, UTC-HA-113, UTC HA-114, UTC HA-133, Sowter 8940, Stancor 3250, Stancor 3315, Thordarson 25S12, Thordarson 24S114,


theres a ton more Sowters Jensens and Lundahls, but getting lazy.

 

[Mbira]

Thanks CJ-edited.

Keep 'em comin' folks.

 

[Bluzzi]

Also Sowter web site has the 4383 listed as the input for the LA2A.

Thanks CJ for passing on that knowledge.

Jim

 

[asm]

what about the api 312? profile 4840 on output and input cinemag...errr... dont know the number off the top of my head.

 

[Bluzzi]

Also in case you didn't notice the Allied 227-0113 is Allied 6K88VG (please no offence if you did). Just one is a P/N the other a catalog number. Both numbers will get you the same item.

Jim

 

[Mbira]

edited...No offence taken. Many (most) of these projects, I havn't done, so I'm just collecting the info and posting it...

Joel

 

[Bluzzi]

Mbira, great idea. I am building (at least getting the parts) an LA2A.

The trannies are of course the most expensive (

Having list of equivalents Transformers is a great idea since they are the most expensive part of the unit (or ather projects I'm sure). (exception is the Power Transformer which is cheap).

Jim

 

[ToobieSnack]

THANKS ........ GREAT IDEA
EXTREMELY HELPFUL

now lets go saturate evilbay with bids...lol

thanks
TS

 

[Bluzzi]

So you are the one that bid more than 280.00 for 2 U-24 eh?

Jim

 

[daArry]

indeed, great thread for future ref... :thumb:

thanks for the knowledge u lovely people u :wink:

 

[Mbira]

Any other subs or projects that should be listed...Keep em coming.

:guinness:

 

[soundguy]

the jensen 110K will also work with a 312. I used a pair in a 312 circuit for a while, defintely works, allows for a little more gain from the opamp with a lower turns ratio than the 115.

dave

 

[rafafredd]

You should list G9 input as Lundahl LL1538, as the LL1528 is an old version, not in the market anymore...

 

[ddt]

What about Sowter 9820 for the 312 input (isn't that based on the one CJ dissected by the way?)

And shouldn't the output be 4804? (Sowter 9825)

Dan

 

[CJ]

Input iron for LA2a:

UTC: A-12, HA-100, HA-101, HA-101X, , A-24, A26 (last two wired backwards), LS-10, LS-10X, LS-12, LS-12X, LS-26, HA-104, HA-105, HA-106, HA-107, HA-127, A-16, A-17, A-18, A-19

Triad:

HS-8, HS-23, HS-25, HS-15, HS-27, HS-28

Peerless:

K-054-Q, K-063-A, G-323-Q, K-281-Q, G-252-Q

Stancor:

A-4351, A-4352, A-4726, A-4408

Thordarson:

25A58, 20A31, 20A08

Kenyon:

K-200, K-201, K-203, K-204, K-205, K-300, K-302, K-304

Input iron for Pultec:

Any 600:600, 20-20khz, +15 dbm x-former will work.
Too many to list.

 

[Mbira]

Thanks guys-Thanks CJ! I knew this would end up being a long list, but I think this is good for me and other newbees to see the wide possibilities on these projects.

rafafredd-I added the Lundahl. I'll also keep the old model, in case someone has one laying around and doesn't know what to do with it.

Joel

:guinness:

 

[pmroz]

.

asm, Profile 4804 is correct for api312 output. (not 4840).
Also Cinemag CMI-8PCCA (1:8) is an option for 312 input.

CJ dissected a 4804 at vacuumbrain... did he do a Sowter too?

Didn't see any JLMs? maybe i missed it on page 1.
Someone familiar with those models?

 

[Mbira]

-updated-
:guinness:

 

[Greg]

As Soundguy suggested, add the Jensen JT110K-HPC to the list of input trannies for the 312. I have these in a pair of mine.