I am in the middle of a Mini-D restore right now.
I don't stock the wafers, I believe RS components carry an equivalent switch but they are shockingly expensive.
The switch contacts are silver plated and thus tarnish over time.
They can be cleaned with silver polish and cotton buds, but it is fiddly and time consuming.
De-Oxit can be very helpful if only a few contacts are iffy
Isopropanol can also help, or some combination of all 3 options.
The Octave switches use only half the switch, so it is possible to bridge across to the unused contacts to improve reliability (after cleaning of course).
Instructions, photographs and more detail used to be available on-line (Google is your friend).
If the Volume pot is the original Allen-Bradley type, then it is sealed, and you can't get contact spray in there.
Just take it out, dismantle, clean (using Isopropanol and/or De-Oxit) and rebuild, and assuming it's not worn out, you should be good for another 20 years. It's a lot easier to remove than a wafer switch.
Hope this is of some help,
John.
Hello John !
Just read your post below and visited your website,- bookmarked.
I see you´re servicing Moog and Oberheim and after reading about the Minimoog D,- I wonder whether you´re able to provide contact wafers for the
Minimoog D oscillator waveform- and octave switches as well as a master volume pot which is scratchy here because someone might have used contact spray in the past.
please let me know and thx in advance
best
PeWe
Am 07.12.2011 12:32, schrieb John Henson:Hi Jim,
TT is pretty well the only alternative for power switches for the SH101.
The replacement switch only has 6 pins whereas the original had 8, but don't panic!
It will fit perfectly and work fine.
Almost every SH101 through here has needed a power switch replacement, and yours will never be right until it is replaced.
Regards,
John.
www.retroactivesynth.com
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1873 / Virus Database: 2102/4664 - Release Date: 12/06/11