Phonoland

Hi All,

If there any way short of drilling rivets and un-soldering to physically clean the switch contacts on the selection buttons?

I cleaned them with contact cleaner, but I can see that they have tarnish on those slide switches. I do not think there is anyway to get a contact file in there without damaging the contacts.

Best, James

Hi James,
Yes--sure, anything CAN be done--however, you then will need to figure out how to put it all back together. IMHO, doing such is un necessary. I remove the unit from the phono, remove the latch bar solenoid ( and meter, on newer ES's), wash it with Ammonia, rinse with HOT water, oil all pivot points and have seldom had further problems, unless one or more of the slides were damaged.
Besides which--the slides and the parts they slid into were silver plated--any "filing" there removes what's left of the plating----
As a general rule, I do not use "contact cleaner" of any nature here. Once in awhile, after checking the action with an analog meter, I find one or more slides that are showing a high resistance. On these "troublesome" ones, I dab just a very small amount of DeoxIT 5 on the slide, and work it in-- Ron Rich

Thanks Ron,

That is what I will do. The pin bank was a bitch as several of the plates were a mess. I did find a technique to adjust each brass spring contact using 2 metal scribes (90 degree ends) I could manipulate them to get them even and adjusted. I used my fluke tester and worked on all 100 switches and made sure that they made contact when the plate was pressed and did not touch when released.

Thanks, James