04-12-2009, 10:53 PM
Original speakers can be obtained...but they will set you back several $$.
If you do not care about originality you can use a PM speaker, with output transformer mounted on the speaker as Philco did originally. A 3200 ohm, 25 watt resistor will serve to replace the original field coil. It will run hot! A heatsinked resistor, mounted on the chassis away from heat sensitive components, will be a good choice for this application.
If you do not care about originality you can use a PM speaker, with output transformer mounted on the speaker as Philco did originally. A 3200 ohm, 25 watt resistor will serve to replace the original field coil. It will run hot! A heatsinked resistor, mounted on the chassis away from heat sensitive components, will be a good choice for this application.
--
Ron Ramirez
Ferdinand IN
