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Please explain this to me, because it makes no sense.

MOST amplifiers nowadays, in GG, have their grids tied straight to ground.

Cathode current = grid current + plate current. Monitor grid current there, subtracting plate current.

Like it's been done since, oh, I dunno, the 40s. Might wanna take a look at some amps that have the grids directly grounded. The lifted grids, run through a choke and cap provide a very limited amount of negative feedback, as well as raising drive requirements a LOT, depending on the cap size.

Removing the caps on the grids and directly grounding them helps with stability at VHF as well as increases gain. Seems like win-win to me.

--Toll_Free

[QUOTE="Toll_Free, post: 235090, member: 1736"] Please explain this to me, because it makes no sense. MOST amplifiers nowadays, in GG, have their grids tied straight to ground. Cathode current = grid current + plate current. Monitor grid current there, subtracting plate current. Like it's been done since, oh, I dunno, the 40s. Might wanna take a look at some amps that have the grids directly grounded. The lifted grids, run through a choke and cap provide a very limited amount of negative feedback, as well as raising drive requirements a LOT, depending on the cap size. Removing the caps on the grids and directly grounding them helps with stability at VHF as well as increases gain. Seems like win-win to me. --Toll_Free [/QUOTE]

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