diyAudio - Reclaimed Hammond H100 PSU's

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athos56

31st March 2009 04:00 AM

Reclaimed Hammond H100 PSU's

2 Attachment(s)

I reclaimed some Hammond PSU's. I stripped and repainted them, added IEC sockets, a fuse, switch, and a Fender style jewel lamp. Now the only question is, what to power with them... I was thinking maybe a Kt-88 PP amp?

athos56

31st March 2009 04:13 AM

More

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More shots

athos56

31st March 2009 04:15 AM

One more.

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Front shot.

DigitalJunkie

31st March 2009 05:21 AM

What kind of voltages does it put out? Do you have a schematic of them?
They look beefy enough for some PP KT88 monoblocks,or something.
:)

athos56

31st March 2009 04:43 PM

Here is the schematic

2 Attachment(s)

As it existed in the Hammond organ. There are a lot of taps off of each of the windings, and the dang things weigh about 35 pounds each. Each of the high voltage windings are choke input. I eliminated most of the stuff in the supplies, I'm going to get 4 100uf/100uf twistlock caps for the filter sections after the chokes. I'm also thinking about wiring a mosfet gyrator in each one... All of the taps and the weight makes me think that it can supply a lot of current, but I have to find out how to measure exactly how much...

sorenj07

31st March 2009 05:28 PM

The DC resistance across the HV windings ought to give you some idea.

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