RCA and admiral

[bandersen]

Originally Posted by timmy

What I mean is it important to use resistors with the diodes.

I don't know for sure. Definitely if you don't use them B+ will be higher than specified - especially if your AC outlets are more than the 117 VAC it was designed for. I'm use something like 47 to 100 ohms 5W and see how B+ measures once the set is up and running.

Originally Posted by timmy

The 12dq6 and 12dq6b are these for the most part the same, could it be used in the admiral which had the one without the b .

Yes, generally speaking tubes with A, B, C etc suffixes have superior specs to the earlier version and can sub for them.