Heathkit xtal

[Robert Radmore]

Hi Gang,

I have acquired a small white box with the identification 404-209 printed
on it. Looks like a Heath number. It contains a crystal identified as
22.89500    .005   made by M-TRON.

Can anyone identify whether this is a Heath part and if so where it was used.

Thanks in advance for the help.

Bob N2PWP

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