Toggle switch cleaning?

You just spray the switch in both positions, and work it up and down several times, that should help it a lot. with contact cleaner of course. Air dosent clean switches that are dirty, air blows away dust.

Thanks Matt.

07-30-15: Ptss
From the front of the switch?

No, not from the front. Contact cleaner won't be effective unless it reaches the contacts.

Also, if the housing of the switch is completely sealed, with no slots or other small openings, spraying it from inside the preamp won't accomplish anything either. In that situation probably all you can do is to toggle the switch up and down many times, and see if that helps. If it doesn't, the switch would probably have to be replaced.

Best regards,
-- Al

BTW, if and when you spray contact cleaner into whatever small openings may be present on the housing of the switch, there may be a temptation to look closely at what you are doing. Keep in mind that some of the spray will splash back from any surfaces it comes in contact with, and into your face and your eyes if they are too close. It may also emerge in a strong stream from any openings that may be present on the switch in addition to the one you are spraying into.

Best regards,
-- Al

Thanks Al. This switch is on my treasured Spectral DMC20 preamp I've had since new. I do use the switch regularly as I'm sensitive to having correct phase in my Spectral/MIT system. I've called Spectral but I think they're on holiday as I reach an after hours message although I'm calling during business hours. Would it be suitable/effective to use just a drop of the Caig ProGold Gp5 that I've used for years for contact cleaning generally?