Hickok 580 580A Obsolete Tube Test Data Book $8.99 Category: Hickok Description Description For sale is reprint of Hickok 580 and 580A Obsolete Tube Test Data book. Manual is 17 pages long. This data book covers tubes no longer covered by tester’s roll chart. Related products Hickok 191X Universal Crystal Controlled Microvolt Signal Generator Manual $9.99 Read more Hickok Model 691 Heterodyned Marker Adder Operating Manual $9.99 Read more Hickok 656 XC Color Bar Generator Operating Manual $9.99 Read more Hallicrafters SX-115 SX115 Communications Receiver Manual Ham Radio $13.99 Read more