Hickok 539B 539C Tube Test Data Book $9.99 Category: Hickok Description Description For sale is reprint of Hickok 539B and 539C Tube Test Data book. Tube Data Book is 84 pages long. General test data section is 23 pages long, Obsolete tube types is 26 pages long, Foreign tube types section is 27 pages. Related products Hickok Model 677 Oscilloscope Operating Manual $9.99 Read more Hickok Model 650 Television Videometer Operating Manual $10.49 Read more Hickok 191X Universal Crystal Controlled Microvolt Signal Generator Manual $9.99 Read more Hickok 690 VHF-UHF Crystal Controlled Marker Calibrator Operating Manual $9.99 Read more