el 34 in a 18 watt tmb

[mark enger]

what would it take to run a el 34 instead of a el84 in a 18 watt marshall tmb build, whats heater voltage on a el34, what resistor would run the bias, a opt that runs a el 34 would that work with the 34 it a 8 ahm only opt??? if this wont wotk or is to complacated what a cool el 12ax7 build will a pt meant for a 2 el84 amp even run a set of el34??

[benoit]

what would it take to run a el 34 instead of a el84 in a 18 watt marshall tmb build, whats heater voltage on a el34, what resistor would run the bias, a opt that runs a el 34 would that work with the 34 it a 8 ahm only opt??? if this wont wotk or is to complacated what a cool el 12ax7 build will a pt meant for a 2 el84 amp even run a set of el34??

Heater current alone would likely be a problem. 2xel84 would draw about 1.5A. That would only run heaters on ONE el34.