Capacitor

@grannyring

I’ve got the smaller model Canary amp that jasbirnanda has and it has the same 4 x 3uF caps. 

I follow what you said re the output caps, and I suspect Canary went for 3uF just to play safe. But why are the interstage caps also 3uF? Could it be that on the interstage such a large value is needed?

Thanks

@jasbirnandra

Thank you. I’m interested to hear if everything is ok when you try a smaller capacitor like a 2.0 uF.

I have Musicaps in my amp; they’re probably not as good as the Theta caps you have in your amp.

Regards.

@pauly
What Power amp are you using

If the caps are not on the output, but interstage, you should stick with the value they have.  I am only talking about the output cap position.  The caps tied to the the RCA outputs! 

@jasbirnandra 

I have custom built 2A3 SET amps and I don’t know what the input impedance is. I doubt it’s even close to as high as your Canary 300B, but I think it’s high enough to use a cap much smaller then 3uF.

My big concern was the interstage capacitor. Grannyring’s post confirmed my concerns. For the interstage capacitor, I (and you) need to stick to 3uF.