$13.24
Description
For sale is reprint of STARK 9-66 Mutual Conductance tube Tester manual. manual is 7 Pages, Additional Tube Data-American Tubes is 13 pages including 2 Pages of Western Electric tubes (300A/B), Additional tube Data-European tubes is 34 Pages. Includes 11×17 Foldout of Circuit Diagram.
Description taken from manual: “The Model 9-66 Tube Tester is used to test and measure mutual conductance values of vacuum tubes used in radio receivers and transmitting tubes delivering less than 25 Watts of power.