5f2a filter cap variations

[nickrundall]

So after a thorough going over, I found the 470 Ohm 3W cathode resistor was actually a 0.47 Ohm resistor. It is now replaced with 470 Ohm 7W. It appeared...

[nickrundall]

So, it's all built, grounds checked, powers up nicely, vol and tone work as expected - but I have a fairly loud 100hz hum problem (I'm in London) plus some...

[nickrundall]

Thanks Chuck,

I was intending the 0.01uF caps as RF caps, going by the recommendations in the below links - however I found the explanations...

[nickrundall]

Thanks for all the expert info guys. Much appreciated. So here's a rough layout diagram of what I'm going for, with a few questions:

I hope...

[nickrundall]

On a side note, I've populated my turret board and I'm using a pair of 0.022uF 500Vdc SoZo NexGen Blue Molded Vintage Capacitors as coupling caps. I want...

[nickrundall]

Thanks for such amazing answers - I'm glad I asked instead of just jumping in!

NFB switch - that totally makes sense - I just want to switch...

[nickrundall]

Hi everyone, what a great forum!

I'm just getting into my first amp build - I've gone for a 5f2a with a few switchable options (switchable...