Model 65 Modulation Hum

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Model 65 Modulation Hum

Chuck Schwark
Phorum Expert

Posts: 1,703
Threads: 55
Joined: Sep 2005
City: Evanston, IL

10-20-2012, 10:30 PM

Also, your "Ground" source may not be realy Earth Ground.

If you're using the ground screw on an outlet, that may take a high resistance path to real ground and cause a "ground-loop" through your electrical system and cause hum. Depends on your house electrical system. Try a ground clamp to a COLD water pipe, clean, no-paint.

Chuck

Chuck Schwark,
The Philco Repair Bench
[Image: http://www.philcorepairbench.com/images/philog3tiny.gif]
http://www.philcorepairbench.com

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Messages In This Thread

Model 65 Modulation Hum - by Sourbone - 10-20-2012, 03:00 PM

RE: Model 65 Modulation Hum - by TA Forbes - 10-20-2012, 03:53 PM

RE: Model 65 Modulation Hum - by Sourbone - 10-20-2012, 04:17 PM

RE: Model 65 Modulation Hum - by LASJayhawk - 10-20-2012, 05:33 PM

RE: Model 65 Modulation Hum - by Sourbone - 10-20-2012, 05:53 PM

RE: Model 65 Modulation Hum - by 7estatdef - 10-20-2012, 07:00 PM

RE: Model 65 Modulation Hum - by Chuck Schwark - 10-20-2012, 10:30 PM

RE: Model 65 Modulation Hum - by Sourbone - 10-21-2012, 08:52 AM

RE: Model 65 Modulation Hum - by codefox1 - 10-21-2012, 10:06 AM

RE: Model 65 Modulation Hum - by 7estatdef - 10-21-2012, 01:52 PM

RE: Model 65 Modulation Hum - by peteivan - 11-02-2012, 09:29 PM

RE: Model 65 Modulation Hum - by codefox1 - 11-02-2012, 09:39 PM

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