[TenTec] Omni D Bandswitch Cleaning

[SPENCER]

Stuart Rohre wrote:
> Rotating a scratchy switch a number of times may remove enough oxide 
> build up to be acceptable.
I read this procedure a LONG time ago.

http://www.radiomuseum.org/forum/tektronix_washing_your_instrument.html

I used something more aggressive on a HP power supply switch. PB 
blaster, flushed with 91% isopropyl ,blow dry.
Good enough for tektronix, good enough for me.