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Re: Zenith 9-S-262 [message #25912 is a reply to message #25897]

Sat, 30 December 2006 11:21

Wayne Parham
Messages: 18903
Registered: January 2001

Illuminati (33rd Degree)

Do you have an oscilloscope? If so, check the IF oscillator and alignment of the IF stages. I've had a couple radios with bad IF coils and the symptoms are exactly the same as you've described. All tubes good, all caps good, just a hum in the output. Without an IF oscillator, there's no way for the signal to get through the IF stages. So check the trimmers on the IF coils, make sure they're aligned, and make sure the IF oscillator is singin'.

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[Message index]

		Zenith 9-S-262 By: lyckland on Fri, 03 November 2006 08:26
		Re: Zenith 9-S-262 By: Tim on Tue, 07 November 2006 03:07
		Re: Zenith 9-S-262 By: Lee gathers on Fri, 22 December 2006 21:08
		Re: Zenith 9-S-262 By: Wayne Parham on Sat, 30 December 2006 11:21
		Re: Zenith 9-S-262 By: Lee gathers on Sat, 03 February 2007 21:11
		Re: Zenith 9-S-262 By: Wayne Parham on Sun, 04 February 2007 13:41
		Re: Zenith 9-S-262 By: Lee gathers on Mon, 05 February 2007 20:06
		Re: Zenith 9-S-262 By: Wayne Parham on Tue, 06 February 2007 00:02

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