Hi friends
I have some of those 24 pos 4 channel rotary switches, probably chinese production, turning them feels a bit clunky…
Before buying some Elma/Grayhill/Seiden—can this be improved by greasing them?
Anyone know of a good guide to that?
Thank you for tips and pointers?
David
I have some of those 24 pos 4 channel rotary switches, probably chinese production, turning them feels a bit clunky…
Before buying some Elma/Grayhill/Seiden—can this be improved by greasing them?
Anyone know of a good guide to that?
Thank you for tips and pointers?
David
When I built my Leach preamp (Audio 1977) I included his stepped attenuator utilizing a Centralab switch.
New, it was pretty stiff so I took a look at the positioning mechanism which had doubled up springs and two ball bearings running in the "hill-and-dale" track.
I took out one ball bearing and one of the springs.
It's worked nicely ever since.
New, it was pretty stiff so I took a look at the positioning mechanism which had doubled up springs and two ball bearings running in the "hill-and-dale" track.
I took out one ball bearing and one of the springs.
It's worked nicely ever since.
I should try this I guess, thanks, @mhenschel !
(Instead of infecting the "lightening the mood" thread with some obvious fails, right, @Galu 😉 ?)
(Instead of infecting the "lightening the mood" thread with some obvious fails, right, @Galu 😉 ?)
A solvent to flush out old lubricant is the first step.
If able to disassemble the switch, great idea.
Once that's done, a soaking/brushing of the contacts/wipers with Tarn-X tarnish remover is in order.
Then flush with spray contact cleaner like CRC electronic cleaner, then lube the shaft and detent area sparingly only with some Super Lube grease.
Works for me every time.
If able to disassemble the switch, great idea.
Once that's done, a soaking/brushing of the contacts/wipers with Tarn-X tarnish remover is in order.
Then flush with spray contact cleaner like CRC electronic cleaner, then lube the shaft and detent area sparingly only with some Super Lube grease.
Works for me every time.
Proper "electrical contact grease" is the one to go for if you use grease. Its job is to reduce corrosion and wear. However its not good in a dusty environment as it will accumulate dust in the grease (for an open-frame switch). Dusty environment in practice means any enclosure with a filterless cooling fan blowing through it - its amazing how much grime accumulates over time.