Thinkin' about laying out an F-2B with mosfet follower
Posted: 27 Feb 2018, 06:53
I've seen various threads here and elsewhere about the F-2B bass preamp.
There's plenty of talk about a 2-tube version with the 2nd tube providing cathode followers. And some talk about just using an irf820 source follower to buffer the output for better compatibility with power amps that have lower-Z input.
Didn't see a schematic. I'm not super well versed in how this stuff works, but did find some sites discussing how to implement, in general terms, a mosfet source follower to a tube doing the same job as a cathode follower.
Drew up this. Does it look right to anybody?
There's plenty of talk about a 2-tube version with the 2nd tube providing cathode followers. And some talk about just using an irf820 source follower to buffer the output for better compatibility with power amps that have lower-Z input.
Didn't see a schematic. I'm not super well versed in how this stuff works, but did find some sites discussing how to implement, in general terms, a mosfet source follower to a tube doing the same job as a cathode follower.
Drew up this. Does it look right to anybody?