Heathkit of the Month: by Bob Eckweiler, AF6C The HD-1250 Solid-State Dip Meter (and Its Predecessors) Introduction: The Dip Met
Heathkit HD 1250 Solid State Dip Meter (manual) : Free Download, Borrow, and Streaming : Internet Archive
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HEATHKIT HD1250 9V SOLID STATE GDO SCH Service Manual download, schematics, eeprom, repair info for electronics experts
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