04-03-2014, 07:44 PM
Hi,
Many thanks David for the mention in post #2. I did indeed go to considerable lengths in trying to make a brand new "saw tooth" type pot track from scratch.
I was very successful in making a standard type wire wound pot to very close resistance tolerance so proved it could be done in a home workshop by a novice but I failed to complete a saw tooth tracked pot on costs alone. The thread explains in detail just how much time and effort I put in and had I been able to obtain the correct resistance wires without taking out a mortgage I'm sure I would have also completed a saw tooth type pot track.
When I first started the project my thoughts were that sourcing the track material and actually forming the track to shape would be the hardest part but how wrong I was; I managed quite easily to form the tracks and even sorted out how to coat the resistance wire but no way was I going to be ripped off by resistance wire prices just for something to experiment with. This was a big disappointment to me to get so near then have to give up but I did prove to myself that I could make wire wound pots from scratch. I tried the link David but it didn't work so I'll try the link to my thread again;
http://www.vintage-radio.net/forum/showt...hp?t=60050
I did gain a lot of interest and personal satisfaction out of making the pot tracks though; I've since got rid of everything associated with the project. Another project I intended tackling around the same time was to make from scratch complete speaker cones with the speech coil but other more pressing jobs cropped up. There is so much regarding vintage radios that an experimenter could find to play with? I'm currently bogged down restoring machinery.
Kind regards, Col.
Many thanks David for the mention in post #2. I did indeed go to considerable lengths in trying to make a brand new "saw tooth" type pot track from scratch.
I was very successful in making a standard type wire wound pot to very close resistance tolerance so proved it could be done in a home workshop by a novice but I failed to complete a saw tooth tracked pot on costs alone. The thread explains in detail just how much time and effort I put in and had I been able to obtain the correct resistance wires without taking out a mortgage I'm sure I would have also completed a saw tooth type pot track.
When I first started the project my thoughts were that sourcing the track material and actually forming the track to shape would be the hardest part but how wrong I was; I managed quite easily to form the tracks and even sorted out how to coat the resistance wire but no way was I going to be ripped off by resistance wire prices just for something to experiment with. This was a big disappointment to me to get so near then have to give up but I did prove to myself that I could make wire wound pots from scratch. I tried the link David but it didn't work so I'll try the link to my thread again;
http://www.vintage-radio.net/forum/showt...hp?t=60050
I did gain a lot of interest and personal satisfaction out of making the pot tracks though; I've since got rid of everything associated with the project. Another project I intended tackling around the same time was to make from scratch complete speaker cones with the speech coil but other more pressing jobs cropped up. There is so much regarding vintage radios that an experimenter could find to play with? I'm currently bogged down restoring machinery.
Kind regards, Col.
Happiness is a wreck of a cabinet to restore.
