Thread: Cleaning Tuners
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Old 03-08-2008, 06:56 PM
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Old1625 Old1625 is offline
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Quote:
Originally Posted by peverett View Post
I have alway followed a similar method as given by old1625 with good results.

However, I have one now that I am not sure how I am going to handle. This one, from a 1964 Westinghouse portable, has all of the fine tuning adjustment screws stripped. I think that this is due to the deterioration of the plastic threads over 44 years, not someone with a screwdriver. As I plan to put this on a ASTC tuner, I only need to get channel 3 working. I am thinking of possibly somehow adusting the channel 3 screw and then gluing it. Not sure yet.
I surmise you are talking about a "bandswitch"--rather than "standard coil"--tuner, the bandswitch type having stationary coils, and mica compression trimmers usually accessible through a righ of holes at the front of the tuner housing, and usually accessible in sets by pulling the knobs and weilding a long shank screwdriver. Mebby I'm wrong.... Anyway, the screws on the type I'm trying to describe were once of brass, and I vaguely remember perhaps seeing some nylon ones in later models--'64 sounds about the right year for such nonsense. While it may be complicated as a procedure, and much like building a model ship in a bottle, you might try retrofitting the nylon screws with the brass ones fitted with insulating washers.... (?)....threads should be the same, one would at least like to think.....

But easier would be simply to try to find a tuner that would fit in that has the brass screws instead of the nylon ones--supposing they are lying around on the open market begging for homes.... Not an enviable spot you're in... But--on the bright side--you will be needing the external tuner in about a year from now anyways....
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