If you don't want heating resistors use separate +/-15V DC PSU without 2k2/2W resistors and 15V zeners for suply NE5532 and unregulated +/-83V DC PSU for suply amp.
Regards
thank u for ur reply sir,
can i use 53 v dc for run this amp. how much power i will get?
what is the minimum and maximum dc voltage for running 2pair outputs, any changes.
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hi apex sir,
today i prepared the second channel of the amp.
i put two pair with 55v dc supply with 10a fuses.
after power on one of the part is burn, the smoke is gone like a rocket.
but i cant see the burn part. but the parts are very clean.
there is no darken marks in the board.
here are the photos.
today i prepared the second channel of the amp.
i put two pair with 55v dc supply with 10a fuses.
after power on one of the part is burn, the smoke is gone like a rocket.
but i cant see the burn part. but the parts are very clean.
there is no darken marks in the board.
here are the photos.
Attachments
Yep, there are no doubts. You don't even need to smash them open. Just look at them. nazirdigi, I'm afraid you are a victim of counterfeit transistors and that amp will never work unless you buy original devices.
Mr. Apex, How much watts can produce with trafo 15A, ac 56-ct-56 (this trafo i use for 2 chanel/stereo).....Regards
