STARK model 12-22 12-22A Tube Tester Manual, Schematic

$9.99

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For sale is reprint of STARK 12-22 12-22A Dynamic Mutual Conductance Tube Tester manual. Manual is 44 pages long, includes 11×17″ Circuit Diagrams for 12-22 and 12-22A tube testers. 

manual comes with 5 page Ballast Tube Chart, Circuit Diagrams and Part Lists. includes Calibration Procedure. Over 20 pages explaining how tubes are tested and mathematics involved. Must for every owner of this rare tube tester.

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