Model 60 not happy to go back in cabinet! - Printable Version

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+--- Thread: Model 60 not happy to go back in cabinet! (/showthread.php?tid=4870)

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Model 60 not happy to go back in cabinet! - sjhs1962 - 06-13-2012

Seems like the cabinet re-entry process is a touchy process, at least for me with my limited experience. Model 60 was working fine on the outside. Now it is howling and oscillating. Even with tube shields. I am wondering if somehow the 42 tube or the 6A7 tubes are shorting out. Any help would be greatly appreciated. This new problem just cropped up.

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RE: Model 60 not happy to go back in cabinet! - sjhs1962 - 06-13-2012

Crazy. I pulled the 42 and 6A7 and then reinserted. Radio plays. I am wondering about a loose pin contact or something similar. The radio is in the normal position, not on its side or back. Any thoughts on a hit or miss howling, motorboating, oscillating symptoms. Thanks.

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RE: Model 60 not happy to go back in cabinet! - codefox1 - 06-13-2012

Sounds like you should clean up the tube pins and sockets with deoxit, you can sweat the pins on the tubes and add a little bit of solder to be sure, retention the contacts of the socket gently with a pick or needle, let everything dry out, and you should be fine.

One more thing, make sure there is nothing hanging down or sagging that will compress to a short when chassis is upright.

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