[Boatanchors] TR switch

[Ray, W4BYG]

I picked up in the distant past, an apparently rare TR switch that I can 
find nothing on.  Maybe someone on the list has some knowledge or data 
on it.

It has no case, labeled: Lynmar Engineering, Philadelphia.  The chassis 
box is quite small with one side open.  The label says it is a "TRS-2 
trans-receive switch".  It uses 2 miniature tubes (one is an OA2 
regulator and one is missing).

My guess it comes from the late 40's or early 50's.

Sure would like to track down a schematic for it.  Bama doesn't list it. 
A web search also returns nothing.

Your attention is appreciated.

Ray, W4BYG

-- 
I'm no longer young enough to know everything!