[Boatanchors] Cleaning rotary switch contacts

[Garey Barrell]

Gene -

Spray "contact cleaners" have no use in anything except 1950's TV 
tuners!  They coat everything with a dust attractant/holder.  There are 
"no residue" spray cleaners, but they leave the contacts unprotected and 
unlubricated.

Get a bottle of DeoxiT D100L, or whatever they call the bottle with the 
hypodermic needle these days.  Apply a small drop to a fixed contact and 
exercise the switch.

It will NOT remove the black silver sulfide, which is soft and 
conductive anyway, but will clean and protect the fine silver line where 
the contact is actually made.

Also get some CaiLube/MCL spray at the same time.  Spray it inside any 
carbon pots and they will operate and feel like new.

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
<http://www.k4oah.com>



WØQFC wrote:

>Does anyone have a suggestion for cleaning contacts other than the typical 
>tuner cleaner/lube?
>The tuner cleaner seems to leave too much of a oily residue and I think that 
>it might just collect a lot of dust and dirt.
>
>TIA es 73
>Gene, WØQFC
>Spring Hill, Florida
>WEB SITE:
>http://www.w0qfc.com
>  
>