05-15-2008, 06:41 PM
Hi Oscar
Probably 40-190.
Allow me to explain.
Some 1940 Philco models started out using 7J7 mixer-oscillator tubes. Then Philco switched to 6J8G. THEN they switched BACK to 7J7.
Confusing, yes?
I do not know why they did this. I suspect they got a good deal on 6J8G tubes and used them up, then went back to 7J7.
Probably 40-190.
Allow me to explain.Some 1940 Philco models started out using 7J7 mixer-oscillator tubes. Then Philco switched to 6J8G. THEN they switched BACK to 7J7.
Confusing, yes?
I do not know why they did this. I suspect they got a good deal on 6J8G tubes and used them up, then went back to 7J7.
--
Ron Ramirez
Ferdinand IN
