[R-390] 7 and 9 pin plugs

[Roger Ruszkowski]

Fellows,

The E bay folks are offering both 7 and 9 pin printed circuit board round wafers.
With holes on the tube socket pin pattern as we need.
Some pins are offered being of fair length.

You need two wafers and the 7 or 9 pins.
You space the wafers one on top one mid way to leave pins sticking out the bottom.
You get a bird cage you can build into between the upper and lower wafer.
You can build all over the top side.
Look inside an R390 RF can for the construction idea of how parts solder to pins.
Wrap proto types in shrink tubing and heat gently.

Production runs could sand PC disk to nice circle diameter and a hard plastic tube
sleeve could be added. A plastic plug would form the top.
Glue it all together. I do contact cement that I can chisel open.

I see the socket savers on E bay. These could be built on and wrapped with 
a sleeve type tube cover. 

Finding plugs to build on is a problem for us hobby experimenters.

Roger AI4NI