Hey all,

Figured I would ask here first before trying the Watkins Johnson group directly.  The WJ-8718A has a voltage regulator marked as a LM340AKC-15.  Now, I understand that the 'K' designation specifies that it's a TO-3 package, and the 'A' is the improved version, so a tighter tolerance, but for the life of me I cannot find anything that denotes what the 'C' is (or it may be a 'KC'?).  Is anyone familiar with this designation and what it specifies?  I'm trying to find a replacement and hoping I didn't just stumble on another piece of unobtanium.

Thanks again as always
Reuben