Best 3A5 / DCC90 / CV808 tubes?


I'm looking to pick up 4 of this tube type, but can't find much info on them, such as recommended ones to buy or even where to buy them at all.

Any help appreciated!

128x128mmcgill829

I don’t recognize any of those alphanumeric codes. What is it? Is it a 2A3 with an oddball filament?

The 3A5 designation means "3 volt heater, 5 element/pentode structure". This is a new one for me! I will have to take a look at my GE tube manual.

Sure, but are they any good? There's not really much information out there from searches I've done, at least, from users on if there were any they preferred, etc.