At B & K, test equipment is made to meet the demands of the field Carl Korn President OPERATING INSTRUCTIONS FOR Model 666 /606 DYNA-JET TUBE TESTER B An excellent low priced emission type tester for tubes of the 40's - 70's types. Great for audiophiles and guitar amp servicing. It will not test the early pre- For sale is reprint of B&K Dyna-Jet 606 Dynamic Mutual Conductance Tube and transistor Tester manual. Manual is 8 pages long, Tube data is 27 Pages long. Find 18 & K Co. , made TV picture tube rejuvenator / testers . After the expiration of Hickok's patent on the dynamic mutual conductance circuit , B & KInstruction Manual (including schematic and parts lists) and Tube Chart (497-013-0172) for the B&K model 606 Dyna-Jet Tube Tester. Compliments of Mal Ward. B&K. · 1461 Oscilloscope Adjustments & Schematic.pdf · 290 Extended Range Solid-State Electronic Multimeter.pdf · 650 Tube & Tranistor Tester.pdf · 606 Tube Tester For sale is reprint of B&K Dyna-Jet 606 Dynamic Mutual Conductance Tube and transistor Tester manual. Manual is 8 pages long, Tube data is 27 Pages long.