Ess Transar current source amp?

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Looking for schematics for this dedicated amp for the Transar speakers of the late 70's.
Has a horizontal function power indicators along with voltage/current source output buttons on front.
Inputs for high frequency crossover and volume along with inputs for full range operation
Stereo amp at 250 watts ? 16 T03 total quasi outputs

Mine has a turn off thump annoying me. Negative rail sticks on after shut down . No bleeder resistors originally but then it didn,t have this issue years ago.
You might check out this Heil transar speaker project that never took off

Regards
David
 
Billede 135.jpg

Works perfect. Have turned it on with a variac during 24 hours. Have not been used for many years.
 
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