I hear you guys...The problem with all this stuff is two fold...
1st..Anybody that really knew this stuff is dead or retired...
2nd..With all the electro mechanical functions of this stuff it actually requires extensive maintenance time, which nobody has the time for anymore, much less the knowledge....
Pittsburgh is still loaded with RSBL, ERL, REL, DMR, and Mark V. But they've got Gettysburgh right down the road for support and parts.
I remember handing a DMR reg card to a REALLY good board tech a few years ago. Nothing on it but a few UJT's, resistors, and caps. He spent 3 days chasing down all the cirucitry, and ended by shaking his head in amazement.. His comment that stuck with me was...
"People have always been smart. They just had less to work with back then, and Westinghouse had some terribly smart engineers"..