Mbira

Transformer lists for projects.
« on: March 28, 2005, 06:14:28 PM »
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)[/u]

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:[/u]

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

Output:  OEP A262-A2E;  Lundahl LL5402      

Power:

G1176:[/u]

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[/u]

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 series:parallel (1:2) or parallel:parallel (1:4) pair.
Lundahl LL1538 ? Change cap on the secondary from 180pF to 390pF.
- OEP A262A3E ? Wired for series:parallel (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.
Joel Laviolette

Rattletree   |  https://www.rattletree.com
The Rattletree School of Marimba | https://www.learnmarimba.com


CJ

Transformer lists for projects.
« Reply #1 on: March 28, 2005, 06:48:11 PM »
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.
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

Mbira

Transformer lists for projects.
« Reply #2 on: March 28, 2005, 07:19:46 PM »
Thanks CJ-edited.

Keep 'em comin' folks.
Joel Laviolette

Rattletree   |  https://www.rattletree.com
The Rattletree School of Marimba | https://www.learnmarimba.com

Bluzzi

Transformer lists for projects.
« Reply #3 on: March 28, 2005, 07:22:02 PM »
Also Sowter web site has the 4383 listed as the input for the LA2A.

Thanks CJ for passing on that knowledge.

Jim

asm

Transformer lists for projects.
« Reply #4 on: March 28, 2005, 07:22:18 PM »
what about the api 312? profile 4840 on output and input cinemag...errr... dont know the number off the top of my head.
...has a 'gold sputtered capsule for vintage sound'...

Bluzzi

Transformer lists for projects.
« Reply #5 on: March 28, 2005, 07:25:09 PM »
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

Transformer lists for projects.
« Reply #6 on: March 28, 2005, 07:29:53 PM »
edited...No offence taken.  Many (most) of these projects, I havn't done, so I'm just collecting the info and posting it...

Joel
Joel Laviolette

Rattletree   |  https://www.rattletree.com
The Rattletree School of Marimba | https://www.learnmarimba.com

Bluzzi

Transformer lists for projects.
« Reply #7 on: March 28, 2005, 07:37:47 PM »
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

EXCELLENT!!!!!!!!
« Reply #8 on: March 28, 2005, 07:39:55 PM »
THANKS ........ GREAT IDEA
EXTREMELY HELPFUL

now lets go saturate evilbay with bids...lol

thanks
TS
I need help with  RCA BA-43/ BA-45. RCA BA-25a, RCA BC3 mic pre's, Gates Level Devil, Federal AM-864u, DIY la2a stuff, Altec 436b

Bluzzi

Transformer lists for projects.
« Reply #9 on: March 28, 2005, 07:41:14 PM »
So you are the one that bid more than 280.00 for 2 U-24 eh?

Jim


daArry

Transformer lists for projects.
« Reply #10 on: March 28, 2005, 07:41:23 PM »
indeed, great thread for future ref... :thumb:

thanks for the knowledge u lovely people u  :wink:

Mbira

Transformer lists for projects.
« Reply #11 on: March 29, 2005, 01:14:18 PM »
Any other subs or projects that should be listed...Keep em coming.

 :guinness:
Joel Laviolette

Rattletree   |  https://www.rattletree.com
The Rattletree School of Marimba | https://www.learnmarimba.com

soundguy

Transformer lists for projects.
« Reply #12 on: March 29, 2005, 01:46:07 PM »
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

chips are good with dip...

rafafredd

Transformer lists for projects.
« Reply #13 on: March 29, 2005, 04:57:43 PM »
You should list G9 input as Lundahl LL1538, as the LL1528 is an old version, not in the market anymore...

ddt

Transformer lists for projects.
« Reply #14 on: March 29, 2005, 05:11:09 PM »
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

Transformer lists for projects.
« Reply #15 on: March 29, 2005, 05:46:27 PM »
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.
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

Mbira

Transformer lists for projects.
« Reply #16 on: March 29, 2005, 07:03:46 PM »
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:
Joel Laviolette

Rattletree   |  https://www.rattletree.com
The Rattletree School of Marimba | https://www.learnmarimba.com

pmroz

Transformer lists for projects.
« Reply #17 on: March 29, 2005, 11:57:54 PM »
.

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

Transformer lists for projects.
« Reply #18 on: March 30, 2005, 04:02:25 PM »
-updated-
 :guinness:
Joel Laviolette

Rattletree   |  https://www.rattletree.com
The Rattletree School of Marimba | https://www.learnmarimba.com

Greg

Transformer lists for projects.
« Reply #19 on: March 30, 2005, 04:24:57 PM »
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.
Greg Stein
New Orleans, LA


 

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