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I used to hate working on old tube radios until I found a better way to clean the contacts
For years I'd just spray contact cleaner and hope for the best, which often meant the crackle came back in a few weeks. Then a guy at a swap meet in Dayton showed me how to use a fiberglass pen, like the Jonard 500, to gently scrub the tube pins and sockets before applying cleaner. It adds maybe five minutes to the job but the connection stays solid for good. Anyone else have a simple step that turned a frustrating repair into a sure thing?
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keithlane6d ago
That fiberglass trick can work, but it's risky on some older sockets. Scrubbing can actually wear down the plating and make things worse over time. A good non-residue cleaner and working the tube in and out a bunch has always been more reliable for me.
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