100khz. Freq. Std.

[Fred e holnagel]

Neatly homebrewed on 2 1/4 x 2 1/4 x 5 Bud box.  Has PR xtal Type Z 6A.
One 6SK7 tube.  117 volt operation. Has off on switch and tuning control.
Pin jack output.  Small enough to fit into many receivers lacking a
calibrator. $18.20 shipped U.S.

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