[Test-Equipment] Need recommendations for an HC-6 & FT-243 tester

[k4pf at juno.com]

Hi, Doug

I would recommend the "Crystal Correlation Test Oscillator,"
which appeared in Nov. 1973 QST.

It has the advantage of testing using the standard 32pF parallel capacitance.
I would using two of the circuits, one with an FT-243 socket
and one for an HC-6/U socket. (each circuit uses only 2 transistors).

With this circuit, there is no measurement of Xtal activity, just frequency.

A copy of the article is attached.

73,
Ed Knobloch


>Doug Hensley <w5jv at hotmail.com> wrote
>Can anyone recommend an HC-6 (S-line, later Heath) crystal tester that will also do FT-243 or vice versus: an FT-243 tester that has an HC-6 adapter on it.  I'd also like to see any PDF files you might have that suggest how to make one.