UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Jez1234 · 16th Apr 2021, 3:16 pm

I'm sure this will be a silly question, but is the OPT suitable for SE class A? SE transformers will usually be gapped to reduce magnetic saturation issues.

I have fond memories of building many SE class A amps using mainly EL84's and the odd 6V6 plus one of about 10W IIRC using an EL34 back when I was a teenager (it was retro then... I'm talking about 1979 ish) and they always seemed to work well without being particularly sensitive to anything that I can recall... other than getting the feedback the right way round from the OPT secondary!

16th Apr 2021, 3:16 pm	#7
Jez1234 Banned Join Date: Mar 2021 Location: Morpeth, Northumberland, UK. Posts: 936	Re: Single ended Class A OP stages. I'm sure this will be a silly question, but is the OPT suitable for SE class A? SE transformers will usually be gapped to reduce magnetic saturation issues. I have fond memories of building many SE class A amps using mainly EL84's and the odd 6V6 plus one of about 10W IIRC using an EL34 back when I was a teenager (it was retro then... I'm talking about 1979 ish) and they always seemed to work well without being particularly sensitive to anything that I can recall... other than getting the feedback the right way round from the OPT secondary!