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

[vortalexfan]

Originally Posted by bandersen

It's a series strung set and the current ratings for a 3CB6 are double a 6CB6. 0.6A vs 0.3A.

The 35L6 and 50L6 are both 0.15A filament tubes.

Ok, so I'm guessing that the reason why the 6AQ5 worked in place of a 5AQ5 was because the current draw was similar on those tubes?

So then with that in mind I will probably have to order another 3CB6 after all.