PI Coupling Cap Mix

[plexi50]

Ok another Friday night and i am getting ready to call it a night. BUT WAIT!

Something popped into my head AGAIN! (resistor)

What would happen if you used two different values for the output coupling caps?

Like .047 & .022  / Hey i had to ask. To tired to try it tonight

Bias problems?

[LooseChange]

No bias problems but probably a different tone. Probably like reduing the drive to one side the cap is reduced in size.

[jjasilli]

I worked on a Traynor Guitarmate that someone previously modded with those same values.  It sounded fine.  But it bothered my inner-techie, so I made them both .047  -- though one's a mallory, the other an orange drop. 

[Fresh_Start]

That might be an interesting way to deliberately un-balance the PI in the affected bass frequencies.  Above the level of the smaller cap, both sides would be the same.  Between the frequency "cutoff" of the smaller cap and the larger cap, one power tube would see a bigger signal than the other.  Less noise cancellation from push-pull in that frequency range.  Might be especially fun to experiment with if you had a resonance control which affected the same frequency range.

Cheers,

Chip

[plexi50]

The thought was one of those spontanious moments of life.  Probably nothing very noticable to my ears but who knows. I think a resonance pot is really a great functional adjustment. It can really tighten up a flabby bass