12-10-2023, 04:33 PM
Here's a thread that Ron Ramirez did some years back with some insight into the troubles with the 89 oscillator:
https://philcoradio.com/phorum/showthrea...d=20#pid20
And another thread on 89 oscillators:
https://philcoradio.com/phorum/showthrea...#pid172164
https://philcoradio.com/phorum/showthrea...d=20#pid20
And another thread on 89 oscillators:
https://philcoradio.com/phorum/showthrea...#pid172164