07-11-2018, 03:02 PM
(07-11-2018, 10:56 AM)Sparks Wrote: The power supply is now wired up and working. I put a neon lamp permanently across the smoothing capacitor to let me know if the set is switched on when working underneath it. I really think such a warning device should have been fitted to all valve radios, as a lot of shocks were received because "I didn't think it was switched on!"
Bob
One of my Tek scopes has a similar arrangement. The main difference is that the Tek actually has a capacitor across the neon forming a relaxation oscillator. The eye is even more quickly drawn to the flashing neon.
Al
Tuned for maximum smoke . 
