5F2A Coupling Cap Values

[AJ2000]

I've got a homebrew 5F2A that started life as a Champ. It's configured as a head and open back cabinet with a Weber 12A125. I've always found it a bit harsh sounding in the cleans, so I've been playing around with the tone stack - changed the .0047 tone cap to .01 - nice change overall. But, I'm now thinking of the .022 cap before the power tube - on most other tweeds, that's .047 or .1 - I'm assuming that it was made small to keep the little speaker from crapping out. So I'm wondering about swapping that out to let a little more of the lows through and give the cleans a bit more body. Or would it even make a difference? Going to try it tonight, just wondering if anyone else has played around with this.....

AJ2000

[loudthud]

The corner frequency of .02uF and 220K is 36Hz. So increasing the coupling cap to the 6V6 will be barely audible. But, it's all a matter of playing style and personal taste so go ahead and experiment.

[AJ2000]

I never bother with the math, but I sort of figured that might be the case. For what it's worth, I tried a 0.1 and it actually seemed detrimental to the sound - mushed it up a bit - back to stock- I guess after 60-odd years it would have been done if it was an improvement - if it ain't broke.....