Re: wad 300b pse monoblocks feedback problem
As far as I can see the circuit is correct. It is quite possible that you have the feedback connected the wrong way around. Have you placed a loudspeaker on the output to listen to the sound. With the feedback incorrect you will possibly get a "howling" or "motorboating". If motor boating you can do one but not all of these.
Swap the feeds from the cathodes of the ECC82, swap the green and purple leads from the o/put tx, or swap the leads to the primary of the o/p tx.
John
Last edited by John Caswell; 24th January 2024 at 05:19 PM.
Reason: Adding info
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