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PT-25 audio distortion
#22

Just a quick update to finish this off. Vol pot tested good so I jumped in a permanent magnet speaker and the sound was much better so I'm concluding that the old, original speaker is bit worn out. Polished the cabinet, replaced the plastic dial cover and called this project done.

Thanks all for your help with this. I learned some new testing skills, got rid of "black market" contact cleaner and have another Philco on the shelf.

On to the next one!
Regards,
Paul


Messages In This Thread
PT-25 audio distortion - by WyTex - 12-19-2017, 11:45 AM
RE: PT-25 audio distortion - by morzh - 12-19-2017, 01:29 PM
RE: PT-25 audio distortion - by David - 12-19-2017, 03:08 PM
RE: PT-25 audio distortion - by WyTex - 12-19-2017, 03:09 PM
RE: PT-25 audio distortion - by Phlogiston - 12-19-2017, 03:37 PM
RE: PT-25 audio distortion - by morzh - 12-19-2017, 10:02 PM
RE: PT-25 audio distortion - by WyTex - 12-20-2017, 09:06 AM
RE: PT-25 audio distortion - by Steve Davis - 12-20-2017, 10:34 AM
RE: PT-25 audio distortion - by Phlogiston - 12-20-2017, 10:52 AM
RE: PT-25 audio distortion - by klondike98 - 12-20-2017, 11:01 AM
RE: PT-25 audio distortion - by Phlogiston - 12-20-2017, 02:28 PM
RE: PT-25 audio distortion - by klondike98 - 12-20-2017, 04:45 PM
RE: PT-25 audio distortion - by WyTex - 12-20-2017, 05:16 PM
RE: PT-25 audio distortion - by morzh - 12-20-2017, 05:46 PM
RE: PT-25 audio distortion - by klondike98 - 12-20-2017, 05:48 PM
RE: PT-25 audio distortion - by Arran - 12-21-2017, 12:52 AM
RE: PT-25 audio distortion - by morzh - 12-21-2017, 09:32 AM
RE: PT-25 audio distortion - by WyTex - 12-21-2017, 09:58 AM
RE: PT-25 audio distortion - by Phlogiston - 12-21-2017, 11:05 AM
RE: PT-25 audio distortion - by Radioroslyn - 12-21-2017, 11:33 AM
RE: PT-25 audio distortion - by morzh - 12-21-2017, 12:14 PM
RE: PT-25 audio distortion - by WyTex - 01-05-2018, 01:26 PM
RE: PT-25 audio distortion - by morzh - 01-05-2018, 05:09 PM



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