[Milsurplus] BC-348's, remote/sharp cut-off, triode RFA?

[Unserviceable but Repairable]

Mike - Good one on remote cut-off.  Knew about variable grid-spiral pitch but
couldn't quote a reference.  But think RCA hbk.s have it too

The Harvard Cruft Laboratory.  Wonder if nickname for cast-offs arose there?

& Jack on the triode-connected RFA.  That's an oscillation looking for
a place to happen.  Were triode-connected '348 RFAs neutralized and how the 
devil to you AVC a triode?  Did anyone ever make variable-mu triodes?

  Marty