1948 Westinghouse Model 1821 (182) audio problems - Printable Version
+- The PHILCO Phorum (
https://philcoradio.com/phorum)
+-- Forum: Various and Sundry Categories (
https://philcoradio.com/phorum/forumdisplay.php?fid=37)
+--- Forum: Other Radios (Non-Philco) (
https://philcoradio.com/phorum/forumdisplay.php?fid=12)
+--- Thread: 1948 Westinghouse Model 1821 (182) audio problems (
/showthread.php?tid=21181)
RE: 1948 Westinghouse Model 1821 (182) audio problems -
RodB - 10-22-2020
Speakers with 3.2 ohms impedance will generally measure less than one ohm DC. I usually use Mike's method with a battery.
RE: 1948 Westinghouse Model 1821 (182) audio problems -
Radioroslyn - 10-22-2020
>speaker it measured .3 ohms or something like that, it didn't measure 3.2 ohms like it should of.
There is a difference between dc resistance (what you a measuring with your meter) vs ac impedance which is what tube's plate needs to see on the primary and the voice coil / 2ndry of the output transformer. Will it work yes. But there might be a bit of a miss match. Does it matter? If the audio is distorted badly you may want to try a different impedance spkr or opt.
With the problem as you describe I would suspect perhaps that the voice coil is stuck to the pole (cone won't move) or there is no hv on the plate of the output tube. A short C-8 would do it.