Quote:
Originally Posted by JohnCT
1V2, 2AV2... pretty much the same tube. Your Nitpick award is in the mail.
But I **did** forget that the 15 was the lone departure of a long line or RCA color TVs that didn't use some sort of tube focus rectifier. 
We used to carry at least six 2AV2s on the truck all the time, but I can't recall changing more than a small handful of the SS rectifier in the 15 series.
John |
The 1V2 has an absolute max heater volt rating of 1.45v and a min of 1.05.
The heater voltage for the 2av2 is, 1.8v +/- 0.27v
and the spec clearly states “ under no circumstances should heater voltage be less than 1.53v or more than 2.07v
And yes, where the may be almost the same tubes, the heater voltages make them unsuitable to be interchangeable, or at least I would never do so, thus the reason I mentioned it.