My Brand Z G725

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My Brand Z G725

Eric Adams
Phorum Expert

Posts: 825
Threads: 113
Joined: Aug 2012
City: The Villages State, Province, Country: Florida

12-25-2014, 12:53 AM

Hi Guys,

Here's my latest project Zenith Model G725 . When I got it all it did was have a loud hum at any volume. I replaced all the electrolytics and wax caps. Replaced any resistor out of specs. I tested all the tubes and they check ok.
So, now, with the volume turned all the way down I get a loud hum. Once I move the control any amount, the hum goes away and the radio sounds great-AM and FM.
Any thoughts on what might be causing this?

Thanks,

Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org

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Messages In This Thread

My Brand Z G725 - by Eric Adams - 12-25-2014, 12:53 AM

RE: My Brand Z G725 - by OldRestorer - 12-25-2014, 07:42 AM

RE: My Brand Z G725 - by Ron Ramirez - 12-25-2014, 09:25 AM

RE: My Brand Z G725 - by Eric Adams - 12-25-2014, 11:19 AM

RE: My Brand Z G725 - by Ron Ramirez - 12-25-2014, 03:45 PM

RE: My Brand Z G725 - by Jayce - 12-25-2014, 04:27 PM

RE: My Brand Z G725 - by Eric Adams - 12-25-2014, 11:40 PM

RE: My Brand Z G725 - by morzh - 12-26-2014, 01:02 AM

RE: My Brand Z G725 - by Eric Adams - 12-26-2014, 01:33 AM

RE: My Brand Z G725 - by morzh - 12-26-2014, 12:46 PM

RE: My Brand Z G725 - by Eric Adams - 12-27-2014, 01:43 AM

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