03-04-2008, 08:57 PM
Hi Jonathan
Greetings from across the pond.
The Philco Model 38-3 only used one speaker, and its field coil is rated at 660 ohms. A far cry from 8,600 ohms, for sure.
Does the A938CG use more than one speaker?
You could use a 7500 or 8000 ohm, 25 to 50 watt resistor in series with a 38-3 speaker field if you have to. The 38-3 speaker is 10-1/2 inches in diameter, by the way.
Usually in USA models, the audio output transformer will burn out before the field coil does, although fields in USA Philco speakers can and do go bad; especially in the older (1929-31) speakers.
Greetings from across the pond.
The Philco Model 38-3 only used one speaker, and its field coil is rated at 660 ohms. A far cry from 8,600 ohms, for sure.
Does the A938CG use more than one speaker?
You could use a 7500 or 8000 ohm, 25 to 50 watt resistor in series with a 38-3 speaker field if you have to. The 38-3 speaker is 10-1/2 inches in diameter, by the way.
Usually in USA models, the audio output transformer will burn out before the field coil does, although fields in USA Philco speakers can and do go bad; especially in the older (1929-31) speakers.
--
Ron Ramirez
Ferdinand IN
