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1941 GE Model L-640 Help Needed
RodB
Phorum Expert
*****
Posts: 987
Threads: 40
Joined: Feb 2015
City: Roseville, MN
#10

06-19-2020, 07:15 PM
The black wire was probably for a second speaker external to the chassis. A 4 ohm speaker should work fine, whatever power is lost in the mismatch can be compensated for by adding a 4.7mfd, 16 volt ecap to the audio output tube cathode resistor or turn up the volume.
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RE: 1941 GE Model L-640 Help Needed - by RodB - 06-19-2020, 09:29 AM
RE: 1941 GE Model L-640 Help Needed - by RodB - 06-19-2020, 07:15 PM
RE: 1941 GE Model L-640 Help Needed - by RodB - 06-20-2020, 05:02 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)