On Mon, 28 Nov 2011 22:15:37 -0500, legg wrote:

On Sun, 27 Nov 2011 09:31:43 -0800, Joerg

The ADCs are identity-ground-off. There's a nasty void in the one used
for channel 2, probably caused by metallic grit accidentally included
in the grinding operation. Some of this metal is imbedded in the void.
Image on a.b.s.e..

The part is actually a DPDT video switch, not an ADC.

RL