25-08-2022, 10:02 PM
(21-08-2022, 02:01 PM)peter scott Wrote: Something in the region of 40 to 50 years ago I made myself a 400Hz supply so that I could run a gyro compass in my car. It worked quite well if I remember correctly. I can't remember what I did for the supply. I think I made a three stage phase shift oscillator followed by a little amplification.
Peter
After replacing a shorted 2N3772 my little three phase supply is back in business. The compass takes quite a long time to get up to speed. I guess the decades of idleness will not have helped that.
https://youtu.be/8ePK-Y0OXSQ
Peter.
