HICKOK 539B SHOWN
THE HICKOK 539 also exists in the A, B, and C versions. It has been claimed by many to be "The King Of Tube Testers. More history of this tester is here (link coming soon).
I re-drew the almost incomprehensible factory schematic in Autocad, and it's here
for your viewing pleasure. Also, for this and other information, browse the quick links in the right hand column.
More articles and helpful service information, or other documentation, will be discussed and posted as time permits. If you would like your work included, please contact me using the contact page.
QUICK LINKS
- What is a Tube Tester
- Choosing a Tube Tester (may put this and above on home pg)
- Schematic
- 6SN7 Simulator
- Parts Locator
- Calibration Jig
- Cal by Daniel Schoo
- Bill Eccher 539 Site
All kinds of 539 mods, upgrades, tips, tricks
- Cal by M.H.
- Theory by M.H.
- Simplified Theory
- Dynamic Mutual Conductance
