This should do it.
HICKOK 580A TUBE TESTER Service Manual download, schematics, eeprom, repair info for electronics experts
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HI Rayma,
I have this schematic, thanks anyway.
Reading more about the tester, it seems that Hickok kept their information close to the chest. There is a guy on the internet who advertises repair and calibration of the Hickok 580, but I haven't heard from him via email in a couple years, called his number and his message says that he is very busy. Not sure if I want to send the tester if I can't get a response.
So, I'll set up the tester to test some tubes that I want to test (such as 12AX7) and use the DMM to check voltages, etc. I'll turn the VRs and rheostats to see which one does what. Either I'll burn it up or learn something. Post whatever I find out...
I have this schematic, thanks anyway.
Reading more about the tester, it seems that Hickok kept their information close to the chest. There is a guy on the internet who advertises repair and calibration of the Hickok 580, but I haven't heard from him via email in a couple years, called his number and his message says that he is very busy. Not sure if I want to send the tester if I can't get a response.
So, I'll set up the tester to test some tubes that I want to test (such as 12AX7) and use the DMM to check voltages, etc. I'll turn the VRs and rheostats to see which one does what. Either I'll burn it up or learn something. Post whatever I find out...
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