Svart
Well-known member
Hey CJ, you said no trafo, but you mention using at least a 1:14 elsewhere..
also you mention that amplification changes with cathode R.. could this be a reliable way to apply a trim to the gain or should i stick with some kind of T attenuator on the input before the trafo?
I am thinking a dual primary toroid using one of the primaries as my 150VDC B+, secondaries being either 6V or 12V for heaters. which would you suggest?
also you mention that amplification changes with cathode R.. could this be a reliable way to apply a trim to the gain or should i stick with some kind of T attenuator on the input before the trafo?
I am thinking a dual primary toroid using one of the primaries as my 150VDC B+, secondaries being either 6V or 12V for heaters. which would you suggest?