In Reply to: I did ... posted by Paul Joppa on February 27, 2025 at 18:15:55:
I thought the C4S had no low output Z capability?
For sure, put a single MOSFET in place of that triode, and it can still have the source/cathode output. Make it even 'harder' by adding a second in cascode. With the advent of 1kV depletion-mode 'FETs, the 10M90 is not needed anymore...LOL
Or build a cascode with a triode on bottom and a pentode on top. Couple voltage ref's to separate them by enough voltage to do the job and give it a BIG 'R-set' resistance... :)
cheers.
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
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Follow Ups
- Really? - PakProtector 08:21:31 03/02/25 (1)
- RE: Really? - Paul Joppa 21:43:19 03/02/25 (0)