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….
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