camera buy DeoxIT%C2%AE D100 Spray NSN 6850 01 435 6478 solution
After over 30 years of enjoyment, my vintage audio equipment was starting to show it's age. Some switches worked sporadically, others not at all. When turning the volume control or amplifier attenuators, the sound would drop off with a horrendous static and crackling. After removing the covers I spayed each switch and potentiometer with DeoxIT D5 (5%) to clean and flush 30 years of dust and crud. Work the switches in-and-out and rotate the volume controls to evenly distribute the cleaner. Then, to clean and protect the electrical contacts, a quick spray of DeoxIT D100 to the internals of switches. Use DeoxIT FaderLube on the potentiometers. Some other contact cleaners are not safe for use on plastic. DeoxIT is safe for use on plastic parts, and nearly all switches and pots have plastic internal parts.
My vintage amp and pre-amp are now working as smooth and clean as the day I bought them. Wonderful!