Got this Predicta TV ... now what ...

[cwmoser]

BTW, what is the CRT number for the 6v version of the 21EAP4 ?

[cwmoser]

I'm assuming my CRT is a 21FDP4 6v variant as opposed to the 21EAP4.

[cwmoser]

When I started testing this CRT was totally dead - zero Cutoff and zero Emissions.

I used the Auto Restore feature of the CR70 and brought "Lazarus" back to life.
Got good Cutoff setting and Emission deep into the Green.

Then I got a G1 Short.
So, I use the Remove G1 Short feature and got that fixed.
BTW, I had to run the Remove G1 Short feature about 5 times before I
got it cleared.

Filament current is still 90ma at 6.3v.

Right now my 21FDP4 is looking very good. I'm gonna let it bake for
a while to see it this holds.

[Polaraligned]

Best to find a replacement. The restore/rejuvenate is very temporary fix.