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Re: now it's an AM radio [message #30899 is a reply to message #30890]

Wed, 09 March 2005 14:08

Wayne Parham
Messages: 18793
Registered: January 2001

Illuminati (33rd Degree)

Good idea about the small value ceramics. It's amazing how much RF is present on the power line. The AC power lines are a nice long antenna, and the power supply rectifier is a good detector. Electrolytics in the supply filter don't shunt much RF because internal resistance grows too high at high frequencies. Open up the input, and the amp is great for playing the 50kW boomer station in the area.

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[Message index]

		Ground isolated from chassis - now it's an AM radio By: colinhester on Sat, 05 March 2005 16:35
		un-documented feature.... By: PakProtector on Sat, 05 March 2005 17:39
		700 WLW - Voice of America By: colinhester on Sat, 05 March 2005 18:31
		1170AM By: Wayne Parham on Sat, 05 March 2005 23:12
		Re: 1170AM By: Manualblock on Sun, 06 March 2005 05:48
		Re: Ground isolated from chassis - now it's an AM radio By: Forty2wo on Sun, 06 March 2005 08:56
		Re: Ground isolated from chassis - now it's an AM radio By: colinhester on Sun, 06 March 2005 09:02
		Re: Ground isolated from chassis - now it's an AM radio By: Manualblock on Sun, 06 March 2005 09:07
		Re: Ground isolated from chassis - now it's an AM radio By: colinhester on Sun, 06 March 2005 09:34
		Re: Ground isolated from chassis - now it's an AM radio By: Manualblock on Sun, 06 March 2005 11:56
		now it's an AM radio By: PakProtector on Wed, 09 March 2005 04:39
		Re: now it's an AM radio By: Wayne Parham on Wed, 09 March 2005 14:08

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