Joe -

Let's look at the obvious.

The MC designation is Motorola Semiconductor. The Motorola division that
produced analog, logic and discrete semiconductors was "spun off" into
ON Semiconductor www.onsemi.com/

There are companies that have a wide assortment of new and obsolete Motorola
semiconductors

A quick search of http://www.1sourcecomponents.com/

Shows this part IN STOCK

gb
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wrote in message
...

Need one or two for a repair on a Lambda supply... willing to pay but
not
a fortune as the supply is an antique :-)

Thanks, Joe KB9LZB