1950s or '60s vintage Zenith TVs, Need some info

[init4fun]

Originally Posted by vortalexfan

Ok, take at easy dude, I was asking because I thought you were suggesting that I was going to find them brand new somewhere which I wasn't sure how that was going to be possible seeing as TVs haven't had circuit breakers in them like that since the 1980s, I didn't realize you meant going to ebay and finding a NOS circuit breaker.

This is the first TV I've worked on that had a circuit breaker on it so I didn't know... 😶

Well I'm happy to hear you've got it working, without any of that nasty "bypass" business

[Notimetolooz]

That neon bulb is connected between the horizontal section and the CRT.
I think it passes pulses from the horizontal output transformer to the grid to blank the CRT during the horizontal re-trace. You might not even notice if it was not working, many earlier sets did not bother with horizontal blanking because the beam travels so fast it doesn't light the phosphor much.