from FB group regenerative receiver initiative May 22 Henrik Stenstrom I would like to build something hollow state with all sorts of gizmos like in this photo, but all of it would be a no-go showboat, just for looks. I would put Amber or orange LEDs under the tubes to make them look like they’re
(Read More…)
from FB group Vintage Transistor Radios April 26 I was always curious why Philips didn’t use their brand name in the US. Now I know. From wikipedia.org/wiki/Philco “The company (as well as the Sylvania brand name) was acquired from GTE by Philips in 1981 so that Philips could gain the rights to use its trademark
(Read More…)
from FB group Bell Telephone of… Apr 6 (I bought a transmission test set, TTS-4, photo at bottom.) Glenn Peters We had a HP 493something transmission test set for testing up to 56 kb/s lines. I remember seeing the symbols on the green screen, like a carriage return would look like a little ‘CR’. The
(Read More…)
from FB group Vintage transistor Radios April 3 Are all ‘polyvaricon’ tuning capacitors the same? They’re all about the same size. Charles Vesser Japan Industry Standard… The few that I have examined were 140 pF antenna and about 70 pF oscillator. In parallel give 210 pF. They’re probably made to match up with the loopstick
(Read More…)
from FB group Vintage Transistor Radios 2018-10-20 Was it made in the late ’50s? The transistors are early RCA types. These old time radios are about 60 years old and I am amazed and inspired to hear and see that, once the caps have been replaced, they perform as well as the day they were
(Read More…)
