Grandad's Electronics 100 kHz Frequency Marker Kit, Circa 2008

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Grandad's Electronics 100 kHz Frequency Marker Kit, Circa 2008

13.00

Grandad’s Electronics pulled out its poetic license when producing the cover of the manual for its XTAL-1 frequency marker kit. Its shows a Heathkit 100 kHz Crystal Calibrator from its product line of decades ago. In actuality, this kit is a modern design (2008) that is “a very stable crystal calibrator-oscillator kit with harmonic marker signals every 100 kHz from the bottom of HF to well into VHF or higher,” requiring no warm-up time, one reviewer wrote. Click here to read his complete assessment of the Xtal-1. There is one simple modification required of the builder, which is fully explained in its accompanying manual. Parts locations are annotated on its high-quality silk-screened PC board. The builder matches the capacitor marked “C1” on the board to the parts list included in the manual. This kit appears to be no longer in production.

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