transformer help! Marshall and crate.. cross-reference?

madflower · 4th June 2005, 04:27 AM

I have two transformers from two different combo amps.

One is a marshall 5275 75 watt amp.
It has a drake transformer in it part # 782-352/4

One crate G10xl amp 10 watts
It has a yao chung transformer part #94-100-001
(I didn't find a free schematic for this and the one I found was 8 bucks and probably worth more then the amplifier itself.) =)

I can't figure out what the output is supposed to be for these things nor can i find a cross reference of any type. I didn't think it would be this hard.

I can find the schematic for the marshall amp from www.drtube.com but it is beyond me how to figure what I need to even find out to even match one blind. I can hardly find any information on the 5275 series amps. I assume they didn't sell well because they are solid state, and all the "geeks" are interested in tube amps.. =)

TIA

Sean

madflower · 5th June 2005, 09:11 AM

I fixed the crate. I used a 3amp 12 volt (6v x 6v) power supply from radio shack which I think also makes it a 15w am instead of a 10w amp, but it sounds about as good as it ever did.
(which wasn't that great..). I guess amps aren't like wine, they don't get better just by aging them.. *lol*

I still need help on the Marshall amp though.

4th June 2005, 04:27 AM	#1
madflower diyAudio Member Join Date: Jun 2005 Location: lansing, michigan	transformer help! Marshall and crate.. cross-reference? I have two transformers from two different combo amps. One is a marshall 5275 75 watt amp. It has a drake transformer in it part # 782-352/4 One crate G10xl amp 10 watts It has a yao chung transformer part #94-100-001 (I didn't find a free schematic for this and the one I found was 8 bucks and probably worth more then the amplifier itself.) =) I can't figure out what the output is supposed to be for these things nor can i find a cross reference of any type. I didn't think it would be this hard. I can find the schematic for the marshall amp from www.drtube.com but it is beyond me how to figure what I need to even find out to even match one blind. I can hardly find any information on the 5275 series amps. I assume they didn't sell well because they are solid state, and all the "geeks" are interested in tube amps.. =) TIA Sean

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5th June 2005, 09:11 AM	#2
madflower diyAudio Member Join Date: Jun 2005 Location: lansing, michigan	I fixed the crate. I used a 3amp 12 volt (6v x 6v) power supply from radio shack which I think also makes it a 15w am instead of a 10w amp, but it sounds about as good as it ever did. (which wasn't that great..). I guess amps aren't like wine, they don't get better just by aging them.. lol I still need help on the Marshall amp though.

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