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Re: Schematic Accuracy [message #20111 is a reply to message #20097]

Mon, 10 February 2014 16:24

chicagobill
Messages: 2006
Registered: April 2003

Senior Member

There are a few ways that the trem could cause a constant thump. One is because the intensity control doesn't really turn off the modulating signal and the another way is through the power supply lines.

Try directly grounding the wiper of the intensity pot and see if that helps. If the intensity control is working then try checking the plus and minus 8 volt lines for any signs of interference.

Beyond this, there could be interference from wiring or lead dress.

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[Message index]

		Schematic Accuracy By: bluezebra on Mon, 10 February 2014 01:29
		Re: Schematic Accuracy By: stevem on Mon, 10 February 2014 06:30
		Re: Schematic Accuracy By: bluezebra on Mon, 10 February 2014 10:19
		Re: Schematic Accuracy By: bluezebra on Mon, 10 February 2014 10:26
		Re: Schematic Accuracy By: chicagobill on Mon, 10 February 2014 12:40
		Re: Schematic Accuracy By: bluezebra on Mon, 10 February 2014 13:00
		Re: Schematic Accuracy By: stevem on Mon, 10 February 2014 13:17
		Re: Schematic Accuracy By: bluezebra on Mon, 10 February 2014 13:41
		Re: Schematic Accuracy By: chicagobill on Mon, 10 February 2014 16:24
		Re: Schematic Accuracy By: bluezebra on Mon, 10 February 2014 17:10
		Re: Schematic Accuracy By: bluezebra on Mon, 10 February 2014 17:33
		Re: Schematic Accuracy By: chicagobill on Tue, 11 February 2014 12:22
		Re: Schematic Accuracy By: bluezebra on Tue, 11 February 2014 13:25
		Re: Schematic Accuracy By: stevem on Wed, 12 February 2014 09:26
		Re: Schematic Accuracy By: bluezebra on Wed, 12 February 2014 12:55
		Re: Schematic Accuracy By: stevem on Wed, 12 February 2014 17:08
		Re: Schematic Accuracy By: bluezebra on Wed, 12 February 2014 17:20
		Re: Schematic Accuracy By: bluezebra on Wed, 12 February 2014 21:22
		Re: Schematic Accuracy By: chicagobill on Thu, 13 February 2014 10:43
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 13:57
		Re: Schematic Accuracy By: chicagobill on Thu, 13 February 2014 14:40
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 15:20
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 15:25
		Re: Schematic Accuracy By: chicagobill on Thu, 13 February 2014 16:14
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 17:39
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 19:36
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 22:03
		Re: Schematic Accuracy By: bluezebra on Thu, 13 February 2014 22:40
		Re: Schematic Accuracy By: chicagobill on Fri, 14 February 2014 13:04
		Re: Schematic Accuracy By: bluezebra on Fri, 14 February 2014 22:38
		Re: Schematic Accuracy By: stevem on Sat, 15 February 2014 07:43
		Re: Schematic Accuracy By: bluezebra on Sat, 15 February 2014 10:28
		Re: Schematic Accuracy By: bluezebra on Sat, 15 February 2014 12:11
		Re: Schematic Accuracy By: stevem on Mon, 17 February 2014 06:33
		Re: Schematic Accuracy By: bluezebra on Mon, 17 February 2014 11:07
		Re: Schematic Accuracy By: bluezebra on Mon, 17 February 2014 11:33
		Re: Schematic Accuracy By: chicagobill on Mon, 17 February 2014 13:25
		Re: Schematic Accuracy By: bluezebra on Mon, 17 February 2014 14:20
		Re: Schematic Accuracy By: chicagobill on Mon, 17 February 2014 14:54
		Re: Schematic Accuracy By: bluezebra on Mon, 17 February 2014 16:56
		Re: Schematic Accuracy By: bluezebra on Mon, 17 February 2014 17:14
		Re: Schematic Accuracy By: bluezebra on Mon, 17 February 2014 17:36
		Re: Schematic Accuracy By: chicagobill on Tue, 18 February 2014 12:24
		Re: Schematic Accuracy By: bluezebra on Tue, 18 February 2014 13:31
		Re: Schematic Accuracy By: bluezebra on Tue, 18 February 2014 13:37
		Re: Schematic Accuracy By: chicagobill on Tue, 18 February 2014 13:58
		Re: Schematic Accuracy By: bluezebra on Tue, 18 February 2014 18:25
		Re: Schematic Accuracy By: bluezebra on Tue, 18 February 2014 20:53
		Re: Schematic Accuracy By: chicagobill on Tue, 18 February 2014 21:38
		Re: Schematic Accuracy By: bluezebra on Tue, 18 February 2014 23:15
		Re: Schematic Accuracy By: bluezebra on Tue, 18 February 2014 23:17
		Re: Schematic Accuracy By: chicagobill on Wed, 19 February 2014 01:44
		Re: Schematic Accuracy By: bluezebra on Wed, 19 February 2014 10:32
		Re: Schematic Accuracy By: chicagobill on Wed, 19 February 2014 11:13
		Re: Schematic Accuracy By: bluezebra on Wed, 19 February 2014 12:21
		Re: Schematic Accuracy By: chicagobill on Wed, 19 February 2014 13:20
		Re: Schematic Accuracy By: bluezebra on Wed, 19 February 2014 14:02
		Re: Schematic Accuracy By: bluezebra on Wed, 19 February 2014 14:05
		Re: Schematic Accuracy By: chicagobill on Wed, 19 February 2014 17:06
		Re: Schematic Accuracy By: bluezebra on Wed, 19 February 2014 23:21
		Re: Schematic Accuracy By: stevem on Thu, 20 February 2014 06:49
		Re: Schematic Accuracy By: bluezebra on Thu, 20 February 2014 12:03

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