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Old 19th January 2006, 07:23 PM   #1
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Join Date: Apr 2005
Location: Toronto, Ontario
Default Power amp design?

I have a pair of 35-0-35 vac (280VA) transformers, lots of heatsinks, and a wide selection of parts salvaged over the years.

I'm looking for suggestion of power amp circuit design to use to build a decent power amp.

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Old 19th January 2006, 07:32 PM   #2
K-amps is offline K-amps  United States
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Location: Indiana
Join the Krell Klone group.

You might not be able to get to full 50w pure class-A but even 20 watt pure class-A with 100 watt class-AB will make a nice amp based on your Trafo's.

I have some original Klone PCB's for the MJL devices and Mark has the Pinkmouse PCB's with TO-3 metal cans, take your pick.

Join the thread.... Mark also has some extra PCB's available.

More info in the Wiki...see my signature.
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Old 19th January 2006, 10:59 PM   #3
Join Date: Mar 2005
Location: Australia
with salvaged parts you cant beat the Zen series designs at passdiy.com

enjoy the music!
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Old 20th January 2006, 07:50 AM   #4
AndrewT is offline AndrewT  Scotland
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2 * 35Vac will give about +-50Vdc PSU. With 280VA I suggest looking for 100W into 8ohm classAB amplifiers.
Your PSU will support a stereo amp of 100W+100W or a monoblock 200w into 4ohm.

If you really want to use up heatsinks then a high bias design might suit in which case a FET output stage as Borbely might be even better.

Good luck.
regards Andrew T.
Sent from my desktop computer using a keyboard
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Old 20th January 2006, 09:02 AM   #5
edl is offline edl  Hungary
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Hey members, 4502dude said, he has got a pair of these trafos.
So they will easly handle a 2200W/4ohm stereo amp.

Dear 6502dude!

You are looking for an audiophile-hifi amp, or a general purpouse PA-amp?

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