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 539B Tube Tester Operating Manual $9.49 Read more Hickok KS-5727 Bell System Practices Tube Tester Manual $8.99 Read more Hickok 890 In-Circuit Transistor Tester Manual $10.99 Read more Hickok 600A 600-A Tube Tester Manual $8.47 Read more