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 532 Dynamic Mutual Conductance Tube Tester Manual $9.99 Read more Hickok PS-503 Solid State Regulated Power Supply Operating Manual $8.99 Read more Hickok 191X Universal Crystal Controlled Microvolt Signal Generator Manual $9.99 Read more Hickok 388 388X CD In-Line Tester Manual $11.99 Read more