|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
100.36.165.229
In Reply to: RE: Hickok 539A tube tester -- Fix or ditch? posted by Rod M on August 14, 2015 at 11:00:52
I have restored one of these A models, it's a nice piece but doesn't carry the value of the B or C models. Several problems with these testers I would check is the buttons switch bank, those will often not work correctly causing the meter not to register, use a non-residue contact cleaner on that bank and see if that does the trick. Also, those spool resistors will open quite easily, if one or more are bad you can repair them, although I just replace them with 1% resistors and be done with that problem. The cap across the meter is no big deal, I would replace if it is old, but whatever. There is also a paper cap in there I would replace, the old ones can go leaky because of the acid in the paper, easy enough to replace. Finally, you will need to calibrate it otherwise you have no accurate response to your tests, I believe that Roger Kennedy is out your way. I do repairs and calibrations on these Hickoks, but I am in the DC metro area, and its not cheap, FWIW...
Follow Ups:
Yeah, I talked to Roger and he surely knows what he's doing and appears to do a totally thorough job. If it was a C model or if I didn't already have a good C model, I'd drive it up to him in a heart beat. I just don't know if it's worth $400 to $500 to completely restore this one.
-Rod
yes, that 539A is probably worth around $500, maybe a little more, would be better to sell it and let someone else do the work, if that is your goal, otherwise give the switch bank a cleaning and see if that works and then calibrate it.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: