09-20-2011, 02:39 PM
I think there is a different code for the older style tube version verses the octal type. The code 121 is the older and the 122 has the octals. That one has the older tubes in it. No difference in performance as the tubes all have the same mu (gain). I think I only need one more to have all of regen/cathedrals. I don't have the 1935 version with vertical slots under the dial
Terry
Ron, yeah
Terry
Ron, yeah
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
