• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Simple 1-device gyrators


2011-05-30 8:08 pm
Looking to deploy some gyrators for anode load use, but I don't want to re-invent the wheel. Basically a component/building block for me, I'd be just as happy if anyone offered a good one for sale as a completed unit, like the way K&K sells CCS modules. otherwise I'll design/build my own.

Generic specs would be Zac>1M, 1mA<I<30mA

So I'm looking for feedback/experience from those who have played with simple one-active device gyrators. What works best? MOSFETs? p or n? Enhancement or depletion? Any specific ones? Any other hints or actual circuits that perform particularly well? Thanks.