[Argonaut_USERS_Group] Argonaut Band Switch cleaning

[herr at ridgenet.net]

About every 10 years or so my old trusty Argonaut 509 bandswitch gets
cranky. Typically it is jumps frequency, no signal when initially turned
to the band, etc. Past cleaning attempts have not been entirelly
successful. I have sent it in the past to Ten Tec and they have done a
great job and cleaning it up. Anyone out there have a successful technique
in cleaning up the switches?
Thanks
Mike WA6ARA