10-28-2015, 04:49 PM
Welcome to the Phorum!
There is some excellent info on the model 89s on Ron's page here:
http://www.philcoradio.com/tech/89evol.htm
A dim bulb test set is cheap and easy to make and offers power up protection similar to a variac, see this page on Phils Old Radios: http://www.antiqueradio.org/dimbulb.htm
![Icon_wave Icon_wave](https://philcoradio.com/phorum/images/smilies/icon_wave.gif)
There is some excellent info on the model 89s on Ron's page here:
http://www.philcoradio.com/tech/89evol.htm
A dim bulb test set is cheap and easy to make and offers power up protection similar to a variac, see this page on Phils Old Radios: http://www.antiqueradio.org/dimbulb.htm