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RE: simple answer: no.

I agree with Russ57- the 6B4 deserves something better.

At the very least, the driver should be a differential amplifier (the so-called Long Tail Pair...). This insures that each power tube sees the same number of stages.

A single gain stage, direct-coupled to the 'LTP' can work very nicely. No need for negative feedback. You can generate the Bias supply from the winding of the power transformer that does the B+, if you set that up right, it can provide B- for the differential driver too. That works a lot better for the driver!





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