Toggle switch cleaning?

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?

I suppose it would be reasonable to give that a try, Pete, assuming as I said that there is a way to get it inside the housing of the switch. I'm not completely certain, though, as Caig's D5 is more specifically intended to dissolve corrosion, while the G series is intended mainly as a contact enhancer/conditioner/protectant for contact surfaces that are already mostly corrosion-free.

Best regards,
-- Al

What about a drop of WD-40 instead of Progold ?

If there is corrosion, maybe but WD-40 tends to get gummy and attract dust as it ages. Could be a short term fix w long term consequences. Why not use contact cleaner?

WD-40....I wouldn't use that stuff on my garden rake!!