Quote:
Originally Posted by G6Tanuki
(lots of parallel tubes also mean you can trade lower HT volts against higher HT current - 500V at an amp or so is more open-air-rainy-venue-friendly than 2KV at 250mA)
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And with the lower HT you need a lower ratio in the output transformer and this militates towards better bandwidth and less disturbance from strays.
David (once the constructor of a 4x813 audio amp)