"SX-25" wrote in message
m...
I know this topic has been covered exhaustively on this forum but I
think I may have dozed off.
I am interested in opinions about cleaning rotary wafer switches? For
years my preferred method
has been to use a plain old pencil eraser which has always worked
well. However my current
project is a tube tester with a dozen multi-section wafer switches and
there is most likely no way
I can get into the middle sections with any sort of tool without
probably doing damage. CAIG Deoxit
D5 is my cleaner of late however I am interested in any suggestions
you may have for other cleaners
that are safe for wafer metals as well as the phenolic material they
are crimped on.

Thanks.

WA9VLK
I have used CRC Contact Cleaner for years with success. You can buy it
from Home Depot or Lowes in the electrical isle.

If there is oil in/on the phenolic I have lightly scrubbed the switch with a
soft tooth brush and denatured alcohol. Then used a blow drier for 15 mins
to evaporate any alcohol or moisture before powering up.

Paul P.