A Look Inside #19 - Harmon 4200B Selective Voltmeter - Fix/Repair

[SeanB]

A Look Inside #19 - Harmon 4200B Selective Voltmeter - Fix/Repair

Pt 1

https://www.youtube.com/watch?v=P614i6uTfqk

Pt 2

https://www.youtube.com/watch?v=abk_cnfQcko

At look at the Harmon 4200B Selective Voltmeter, it's operation, fixing issues.

History on the Harmon Industries company:
https://www.encyclopedia.com/books/politics-and-business-magazines/harmon-industries-inc

PCB History:
https://how2electronics.com/history-printed-circuit-board-pcb-nextpcb/

Harmon 4200A Selective Voltmeter Instruction Manual - April 1974:
https://www.scribd.com/document/288855591/Harmon-4200A-Selective-Voltmeter-Instruction-Manual-April-1974


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