Zenith Porthole 19" H2447R

[StellarTV]

Hey Guys,

Getting ready to restore a 19" Porthole; 24H20 chassis and I'm in the middle of doing the initial inspect to see if it's going to be worthwhile. CRT was replaced in '56 and has a brightener in it... the emissions came up to a useable range after I ran it on the tester for 15 minutes so I think I'm okay there.

The fuse in the HV cage is blown (this chassis has the flyback in a proper cage above the chassis)... given the difficulties with factory flys on these what does the jury say about the likelihood of this blown fuse indicating a bad fly? The coating on the donut is dried up and drooping off, nothing looks burnt or melted. I''ve got about 360 ohms between horizontal output plate caps and the top of the 1B3.

One thing I found interesting is that there is an extra 6au6 piggybacked on top of another 6au6 in the 2nd IF stage with a tunable coil attached. Will post pics later.