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Antique Electronics Autopsy: Heathkit Grid Dip Meter GD-1A

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Check out the Antique Electronics Autopsy: Heathkit Grid Dip Meter GD-1A from Caleb @ EE times!

This time we’re going to be doing an autopsy on a Heathkit Grid Dip Meter. Lets begin!

The Heathkit Grid Dip Meter was initially released in 1953 for $20. The designed use of the grid dip meter is to measure high-frequency radio and television equipment. As you’ll see from the schematic on the last page, it is basically just a high-frequency oscillator. There were several listed uses for this device, including detecting resonant frequencies and acting as a tone generator.

The entire user manual, including assembly and operation instructions, is available in PDF form here.

Up close on the dial, custom printed face for Heathkit….

Follow the rest of the autopsy here!

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