by Geek » Mon May 02, 2011 3:20 pm
Hi,
Those are very different animals. 6B4G is a 6V filament 2A3. All rules for a 2A3 apply.
6V6 is an octal 6AQ5 and is a pentode. You need a screen voltage, about 1/3 the bias, the plate resistance is wayyyyy higher (add a goodly amount of NFB or fuggetabboudit), the gain is higher, the transconductance and plate dissipation is lower and the required plate load of the 6V6 is three times higher.
Cheers!
-= Gregg =-
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.