Search found 2 matches

by mhelin59
Fri Jun 18, 2021 6:36 am
Forum: JLM Audio Kits
Topic: BA BA2 BA4 BAD Dual99v Build Thread
Replies: 376
Views: 962874

Re: BA BA2 BA4 BAD Dual99v Build Thread

It could be done but the drive between discrete and the dip8 half running inverted wouldn't be even so there is no benefit. I would just run both primaries in parallel from the +out and return to 0v as with discrete opamp this will be easy to drive and give max headroom Ok, that's also what I was a...
by mhelin59
Thu Jun 17, 2021 6:11 am
Forum: JLM Audio Kits
Topic: BA BA2 BA4 BAD Dual99v Build Thread
Replies: 376
Views: 962874

Re: BA BA2 BA4 BAD Dual99v Build Thread

Is it OK to have another op amp soldered under the DOA if the IC1/A (pins 1,2 and 3) are lifted and connected appropriately when using the BA (basic) PCB? That way you could for an example drive a balanced transformer like LL1539 (though without mixed feedback). Obviously with the output caps as the...