[time-nuts] OT- R&K devices?

[d.seiter at comcast.net]

The parts I have don't have date codes, but they must be circa 1990.  Is there any data out there regarding R&K devices?  My library has nothing and the web appears to be silent too. 
 -------------- Original message ----------------------
From: Jeffrey Pawlan <jpawlan at pawlan.com>
> They were a competitor to minicircuits and others. Tried to win by being very
> inexpensive.
> 
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