06-13-2014, 03:29 PM
You have 24s, 27s, 47s and 280s... NONE of which will 'take' to rejuvenation. They are coated filament (47, 280) or heater/cathode types, with a coated cathode. (24, 24-A, 27.)
I've never heard ot the system described by TA Forbes, but therre is no reason why it should not work. It SOUNDS like the system used to 'rejuvinate' TV picture tubes. Sometimes they would last for a few months, sometimes only a few days. Might be worth looking into for radio tubes.
I've never heard ot the system described by TA Forbes, but therre is no reason why it should not work. It SOUNDS like the system used to 'rejuvinate' TV picture tubes. Sometimes they would last for a few months, sometimes only a few days. Might be worth looking into for radio tubes.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
