I’m starting a new thread on this amp to keep everything straight no confusion .
I’ve been rebuilding this amp from the ground up . Since it’s been blown more then once .
I’m almost at the preamp section of this amp gonna upgrade a few electrolytic capacitors since all the other caps in the amp are new I went with Nichicon caps instead of the sam young that were In it since they were out of spec .
When it comes to opamps in this amp they are using TL074CN and BA4558 .
One of the 4558’s is bad and needs replacing .
Wondering if o could use TL072’s instead of the 4558’s? Or doesn’t it make any difference and I should stick with the 4558’s?
I’ve been rebuilding this amp from the ground up . Since it’s been blown more then once .
I’m almost at the preamp section of this amp gonna upgrade a few electrolytic capacitors since all the other caps in the amp are new I went with Nichicon caps instead of the sam young that were In it since they were out of spec .
When it comes to opamps in this amp they are using TL074CN and BA4558 .
One of the 4558’s is bad and needs replacing .
Wondering if o could use TL072’s instead of the 4558’s? Or doesn’t it make any difference and I should stick with the 4558’s?
I'd use the original part. The engineer who designed this circuit may have had a good reason to use that particular op-amp.