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Old 24th Feb 2018, 6:13 pm   #17
usradcoll1
Heptode
 
Join Date: Mar 2017
Location: Cedar Grove, Wisconsin, USA.
Posts: 823
Default Re: Restoration of my Pye LV30

There was only two US firms that used the self-oscillating line timebase generator. One was Bendix and the other was Muntz, known to build the lowest price TV receiver. The Muntz 10" model didn't even use the recovery diode circuit. They did it with a large resistor and a few other components.
The only set I ran into, that had that circuit was a 12" model and I couldn't get the line frequency to lock in. The owner didn't want to spend any money on it, so I never got any experience on the circuit. That was over 50 years ago!
I restored a newer model Muntz and that one uses an RCA SyncroGuide circuit, that many other firms used.
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