[R-390] 200kc crystals

[Flowertime01 at wmconnect.com]

Barry,

In this world any thing is possible, however every thing is not likely.
You could grind a 100K to 200K with some good lapidary equipment.

The quartz is metal plated and the wire lead bonded to the plating.

Grind some, replate and test the frequency, Repeat until exact.

A one off venture with scouring powered on a glass plate has a low 
probability.

You can open the current crystal cans and replace the contents. I have put 
small 455 crystal cans into the R390 HC-6 crystal size cans and had it work well.

If we can find some 200KHz in the new smaller can sizes they could be mounted 
into the HC-6 cans. 

The HC-6 have hollow pin leads and much easier to rebuild than the power 
supply filter caps.

Roger AI4NI



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