|
I learned something new tonight
Quote:
Originally posted by ChuckA
RCA's "Eye Witness" picture synchronizer was the name given to their phase lock loop (PLL) horizontal hold system.
Chuck
|
Well, I'll be darned! I didn't realize there were such things as phase locked loop systems in the 1950s. I was always under the impression that PLLs were fairly modern inventions, first being used as FM multiplex decoders in the '70s and not showing up in TV sets until the solid-state era.
__________________
Jeff, WB8NHV
Collecting, restoring and enjoying vintage Zenith radios since 2002
Zenith. Gone, but not forgotten.
|