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Old 24th September 2012, 04:24 PM   #1
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Default looking for a schematic or build thread for guitar amp from hammond parts

Hey guys,
I have two hammond organ amplifiers, one from an m3 a1 and the other from an m3 a3. Does anyone have a schematic or a link to a build thread for a guitar amplifier or just a guitar preamp made mostly from harvested parts from these amps?
Any help would be greatly appreciated. I have been learning a lot recently and have a lot of time on my hands due to a recent motor vehicles accident, so I am really excited to start a new project!

Last edited by feastofwolves; 24th September 2012 at 06:09 PM.
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Old 24th September 2012, 05:32 PM   #2
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Location: Rotherham, England

Thread moved to appropriate area.
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
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Old 24th September 2012, 10:04 PM   #3
Enzo is offline Enzo  United States
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If you are just harvesting parts, then make most any amp you want. Determine the power transformer output, that will set your B+, we assume the filament windings will be at universal levels. Whatever the output tube complement of each amp is, you should already know, so if it is a pair of 6L6 or four 6V6 or something else, then make a power amp circuit based on that tube set.
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Old 25th September 2012, 11:03 AM   #4
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First link that comes up when you Google it.

Hammond schematics here and elsewhere on the Net
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Old 26th September 2012, 06:38 PM   #5
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Pinkmouse: sorry about the mispost.
Enzo: I have never built an amplifier before (beyond on board pre amps) little well designed one, although I can easily Identify two 6v6's and two 12au7's amongst the host of other tubes. I was just hoping there was a schematic using mostly parts I have. which brings me to a question: what is a good online resource(s) for parts? I am aware I could Google it but I would rather opinions from people.
Printer2:this sounds stupid but I didn't even think to find the schematic for the amp I have now.

Thanks a lot for the replies.

I have found a schematic for a guitar amplifier using a similar organ amp to the ones I have. For now though, I think that I am going to try and find a simple preamp to build as I'm hoping it will be a less extreme jump for someone of my relatively low skill level.
This is the address for the hammond organ to guitar amp conversion
Hammonator Organ to Guitar Amp Conversion
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