03-12-2019, 01:07 PM
(03-12-2019, 07:01 AM)Diabolical Artificer Wrote: ... a different Rk would give the valves etc an easier life. Re cathode resistors, more resistance = higher voltage drop, higher voltage means higher Vgk ( the difference between grid and cathode)your putting the valve into lower current at rest/no signal. On the two schematics I have for the WEM Dominator, Rk is either two 270r's or one 220r, you could try a 330r or 470r.
Out of interest, I looked at what Vox got up to. The two EL84s in the AC15 shared a common 130R resistor whilst the four EL84s in an AC30 shared a single 50R cathode bias resistor!
