Hey Gang I'm trying to find out how many of these to punch out. I decided to go with kits of 75 for 26.00 . Everyone will benefit from having extras even if they don't do a whole 61 key keyboard. (for the few doing a 76 let me know and I'll toss in a few extras so in case you lose some you don't run out.) But these are useful for repairing..oh for example my DK80 Siel needs one on the 'enter' switch. STick it on and ..away go troubles. For hopefully at least another 20 years or so since the material appears to be better than the original for stability.
Sounddoctorin.com has the stuff!
Also..I have what..I think 3 polysix's fixed up and ready for a new home if anyone is in the market. I'm about to take on that is nearly immaculate save a little corner stress on the back/lower cheeks as is typical.. and put a whole new set of contacts in it. -Bob
--- In PolySix@yahoogroups.com, "Robert Weigel" <sounddoctorin@...> wrote:
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> Well the first unit appears to be all working properly. I had to skin one contact a bit since I got some shorting where I had to tap the key to make it stop sounding the note. I suppose it's possible that cup was just out of tolerance.
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> When I first put them in a few developed intermittent performance like a dirty contact. But I know they aren't dirty. I tried scrubbing the gold contact with cleaner and that didn't help. I replaced the contacts and that resolved the problem. So I'm thinking that maybe they got warped in the cutting procedure and we just had to retry.
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> The key to success here I believe is going to be refining the cutting tool and perhaps we can just sell these as kits where people cut with a tool that is supplied and their own hammer on a hardwood surface. Then the tool actually fits over the contact which has adhesive backing and then they push it on with a plunger tool so that it's centered. Then pull the tool back and pinch the cup and roll the contact down tightly on the surface and there we have it!
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> Anyway I'm going to recommend that people only put half the screws in and test the thing first. If all seems well then finish putting in the screws. If for some reason a contact doesn't work just redo it, making sure any impurities are removed from the area and that the gold is clean also. I had to redo about 6 of the 61 contacts to get perfect performance. So I'm thinking it has to do with having to pull them away from the material because I didn't quite get them cut through etc. Once the process is consistent I see no reason why they shouldn't work every time since the material seems homogeneous enough. But so far replacing the contacts that are bad gets us to a perfect functioning keyboard after the initial install. -Bob
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