[sdiy] tube preamp and fx chain

[Antti Huovilainen]

On Thu, 22 Jun 2006, Tom Arnold wrote:

> I don't remember what guitar primadonna made the original statement but to
> paraphrase "There is something magic about the interaction of the pickups
> and that first 12AX7 tube".  I've tried to follow that rule.  Guitar ->

IF any such interaction exists, it may well be due to the grid current of 
the triode (strange as it may seem, the current flows from grid to cathode 
even when grid is below cathode). This would present a nonlinear impedance 
to the pickups.

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova