Help With OT!! - Secondary tap identification - extra wire??
Posted: Thu Nov 04, 2021 2:56 pm
I could really use some help with something here...
I'm doing a JTM 45 build for a friend. He supplied me the transformers he wants to use, including a Classic Tone/Magnetic Components output transformer. I tried to attach picture to this post, but each time I try to attach a picture, I get an error message that says "sorry, the board attachment quota has been reached"... I guess that means the board can't handle any more attachments...? Anyway, I'll do my best to describe my issue.
The Magnetic Components OT here is the "40-18025", which you can find online as the proper OT for a JTM45 build.
The spec sheet for the OT online shows four taps coming off the secondary:
Black--common
Yellow--4ohm
Orange--8ohm
Violet--16ohm
But the actual wires coming off the secondary side of the transformer in my hand are:
Black--common, I assume
Yellow
Green
White
Gray
(The primary side has red, blue, brown, and I'm already confident which lead is for what on the primary side.)
From an unclear picture I have from the friend of this transformer in an amp before, I'm fairly confident that the yellow tap is 4ohm, green tap is 8ohm, and white tap is 16ohm... but I can't figure out what the gray wire would be for.
Any help is much appreciated!!
I'm doing a JTM 45 build for a friend. He supplied me the transformers he wants to use, including a Classic Tone/Magnetic Components output transformer. I tried to attach picture to this post, but each time I try to attach a picture, I get an error message that says "sorry, the board attachment quota has been reached"... I guess that means the board can't handle any more attachments...? Anyway, I'll do my best to describe my issue.
The Magnetic Components OT here is the "40-18025", which you can find online as the proper OT for a JTM45 build.
The spec sheet for the OT online shows four taps coming off the secondary:
Black--common
Yellow--4ohm
Orange--8ohm
Violet--16ohm
But the actual wires coming off the secondary side of the transformer in my hand are:
Black--common, I assume
Yellow
Green
White
Gray
(The primary side has red, blue, brown, and I'm already confident which lead is for what on the primary side.)
From an unclear picture I have from the friend of this transformer in an amp before, I'm fairly confident that the yellow tap is 4ohm, green tap is 8ohm, and white tap is 16ohm... but I can't figure out what the gray wire would be for.
Any help is much appreciated!!