I'm puzzling over this statement. The FT-243's I have seen have a spring that squishes the quartz blank between the electrodes. They aren't plated onto the quartz, but they are still in intimate mechanical and electrical contact.
-Chuck Harris Bob Camp wrote:
Hi The WWII era FT-243 is one example of a crystal that has the active portion of the electrodes separated from the resonator by an air gap. There are lots of similar holders from that era that do pretty much the same thing. Non-contacting electrodes are not very new. Bob
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