11-17-2013, 09:17 AM
The Philco 40-201 uses a 36-1450 field core speaker. It appears that the DC resistance is 860 ohms and that the current through it is 122ma with a voltage drop of 105 volts. The power dissipation is about 12.8 watts.
What is the impedance of the voice coil? Its DC resistance is not shown on the schematics I have. The OEM speaker is missing so I may need to use a PM replacement until I can get an OEM unit to install. Voice coil impedance may not be much of an issue except for power mismatch if a replacement speaker is way off.
Joe
What is the impedance of the voice coil? Its DC resistance is not shown on the schematics I have. The OEM speaker is missing so I may need to use a PM replacement until I can get an OEM unit to install. Voice coil impedance may not be much of an issue except for power mismatch if a replacement speaker is way off.
Joe
