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G6Tanuki · 22nd Jul 2019, 6:52 pm

Higher HT generally gives greater linearity. I recall somewhere seeing a 1950s US design for a triode-strapped grounded-grid 807 linear, the big thing about GG operation is that it does away with the need for separate screen-supplies and neutralisation.

Some of the old US TV "Sweep Tubes" were essentially 807-derivatives, and these were popular for use in linear-amps.

22nd Jul 2019, 6:52 pm	#2
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,014	Re: Linear Amp using a 807 Higher HT generally gives greater linearity. I recall somewhere seeing a 1950s US design for a triode-strapped grounded-grid 807 linear, the big thing about GG operation is that it does away with the need for separate screen-supplies and neutralisation. Some of the old US TV "Sweep Tubes" were essentially 807-derivatives, and these were popular for use in linear-amps.