Hickok 580 580A Obsolete Tube Test Data Book Sorry, this product cannot be purchased. $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 Model 620 Linear Pattern Generator Operating Manual $8.99 Read more 1970 Tube Test Data for Hickok 539B and 539C Tube Testers $7.99 Read more Hickok PS-503 Solid State Regulated Power Supply Operating Manual $8.99 Read more Hickok Model 691 Heterodyned Marker Adder Operating Manual $9.99 Read more