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Title: Dial Strings Post by: WD4KCM on July 23, 2008, 04:06:54 PM I have a few restoration projects underway (Johnson Invader, Hammarlund) and was wonder what is the best fix for dial cord slippage? I don’t have a problem replacing the dial cord but wanted to try an easier fix before I went in that direction.
73's WD4KCM Title: Re: Dial Strings Post by: w4bfs on July 23, 2008, 08:41:42 PM It has to do with spring tension ... look for these spring(s) in the dial cord pulleys .... they pull the tension that keeps the cord slightly taut ... if the cord is loose, then the most common way to shorten is to unclip the spring and tie a single knot right at the spring, insuring that the knot will not be out on the wind up area of the pulley ... if tension is good but still have slipping, look to needed lube in controls, switches and variable constabulators...73...John
Title: Re: Dial Strings Post by: w3jn on July 24, 2008, 09:38:43 AM The old time trick is to dissolve some rosin in alcohol, then paint the string with the rosin. When the alcohol evaporates the rosin eliminates the slip.
Title: Re: Dial Strings Post by: Ralph W3GL on July 24, 2008, 07:10:20 PM GC used to sell "anti-slip" which was the stuff JN spoke of... AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Did a good job. Not sure if they still do or not, check their catalog. |