Epiphone Galaxie 10 Power Transformer

[galaxiedave]

The PT blew on my Galaxie 10 and I need to replace it, but I don't really know how to pick the right replacement. I've heard Hammond, Torres, MojoTone, etc are all good, but none of them seem to have anything (at least not that I've seen) that specifically says, "This will work for a Galaxie 10."

This will be my first time doing my own work on my amp, so any general advice there is welcome. Thanks!

[Jazz P Bass]

Epiphone Galaxie 10 PT

Here is what I could come up with for Hammond.
Hammond Mfg. - "Classic" Power Transformer - (263-282 Series)

MONO AMPLIFIERS
These sets use the output transformer only up to its rated output.
SE Single-ended amps
WRMS OT PT Tubes
3W 125A /ASE 269AX 6V6, EL84
5W 125B /BSE 269AX 6V6, EL84, 6L6
8W 125C /CSE 269GX 6L6, EL34
10W 125D /DSE 269GX 6L6, EL34
15W 125E /ESE 270DX KT88; 2x 6L6, EL34; 3x 6V6, EL84
25W 1627SE 274X 2x KT88; 3x 6L6GC, 6550; 4x 5881, EL34
1628SE 270HX 811A; 2x KT88
1629SE 272FX 811A; 2x KT88
1640SE 270FX 2x KT88; 3x 6L6GC, 6550; 4x 5881, EL34
75W 1625SE 278CX + 167T6 3x 811A as two mono blocks

I do not know how the Epi is configured. I thought that they came with a 110/220 switch. If so, that will not be used.

Maybe you should call Gibson.

[galaxiedave]

Yeah, it has the 110/220 switch

[Jazz P Bass]

Galaxie 10 PT

After looking over the schamatic , I do not see a Hammond that is exactly what you need (sans 220)
The Galaxie schematic indicates 340-0-340 for the PT secondary.
Hammond gets close with the 380-0-380.

[galaxiedave]

And so if I'm reading the schematic right, I have 115 primary? sorry if this is a dumb question - I'm trying to learn...

[Jazz P Bass]

115 Primary

Where are you geographically located.
I do not know what your MAINS VOLTAGE is.

[galaxiedave]

America

[J M Fahey]

You mean the Country legally called United States of America?

[galaxiedave]

That's the one

[jugleeson]

I realize this is a very old post, but I was wondering if you ever found the transformer. I also have a Galaxie 10 that I think may also have a bad power transformer.

[J M Fahey]

Why do you think you have a bad power transformer?
Maybe you do, maybe not.

[jugleeson]

Troubleshooting

Every time I try to power the amp on, the pilot light turns on for a split second, then the fuse blows. So far I've replaced 3 of the big caps (22uF/450V), tested the rectifier diodes and I've tried powering on without the tubes(still blows).

[J M Fahey]

Well, to confirm or discard, unsolder and tape *all* secondaries, leave them "ln the air" and try again.
Good luck.

[jugleeson]

Okay I unsoldered all the of the secondaries and taped them up, put a new fuse in and tried it. It still blew the fuse. So I guess that confirms that it is in fact the power transformer.

[J M Fahey]

Sorry, bad news then. Probably Hammond has a suitable replacement.
A Mercury Magnetics one may cost as much as a used fully working amp.
Good luck.