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Old 1st Feb 2010, 12:56 am   #7
Gonzini
Retired Dormant Member
 
Join Date: Dec 2006
Location: Wickham, Hampshire, UK.
Posts: 107
Default Re: Cooper Smith Amplifier

Hi Chris
Thats looks very close without the amplifier in front of me.
I think you right on the power output.
Any idea what sort of DC resistance i should expect to see on each of the output windings to ground?
I think there might be a pair of jumpers missing on the rear that select the impedance, a quick check the other day didnt give any output but i could hear 1khz tone that i was using from the valves / output TX.
Someone has lashed up 2 bits of 2 core 1mm mains cable terminated into crocodile clips for the speaker outputs! It needs a fair bit of TLC...
I think HT was around 240V which seemed a little low to me, but im sure something would be happening with that.
Will post some pics up soon, its a pretty rare amp i believe.
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