Most of the front panel screw heads are corroded and need cleaned and polished. It's a Hickok design and I've read online that the Hickok and test sets are more or less civilian versions of the TV The front panel of the earlier variants must be ever so slightly larger than the "C" because there's just no way to get all the screw holes in the "C" front panel to line up to the case holes. Finding new current production bathtub caps wouldn't be much fun so I used a Sprague Atom mounted on two gold plated volt insulation standoffs. That's when I discovered that resistor R, which is in series with this pot, was open. The forward readings are around ohms, higher than the ohms max stated in the manual but probably still usable, and the reverse readings were good at about 40K ohms on both diodes. The lid doesn't close completely down over the front panel because it hits the front panel handles. It still needs sanded so new holes can be marked and drilled for the new nuts. Any other manuals or roll charts that will help the progress of this project. Make sure that you test the rectifiers before you install them.
anybody has a Hickok A manual or a schematic?
TV3C/U Tube Tester Morning Star Observatory
Ciao Max. I have a tube tester that came with a roll chart marked and another marked A. A recommended list of Hickok tube testers. The main reason why particular testers are on this page is that, it is easier to find tube test data for these models.
This military TV-3C/U tube tester has a May date stamped on the It's a Hickok design and I've read online that the Hickok and
If you have a roll chart later than May ofplease email me. Errors were corrected.
Video: Hickok 547 tube tester HICKOK 547A COMPROBADOR VALVULAS TUBE TESTER. En Español .
I think that this originally had "fuses"or "spares" printed on it. Hickok Part No.
I had to replace the latches on the case and decided that while I had it apart that I'd go ahead and do a total check of all of the components, give it a good cleaning, and do a couple of modifications. No more greys, only black and white when printing this beast.
Unity animator is playing
|After that, I start adding additional settings data for tubes not listed in any of the Govt.
Making a guess that might indicate a date, it could be the original chart. So much for working condition.
Video: Hickok 547 tube tester Hickok 533 Mutual Conductance Tube Tester - Testing tubes
Some are a pain to get at the nuts to take them out of the unit. Hickok Part No.
Hickok Electrical Instrument Co. E, S, Electron 38 and Simplex S Tube Tester Schematic, 5/8/, W. 1, Experimental Tube Test Data for Hickok //TV-3U Tube tester .
Hickok Documentation, Manuals, Schematics, and Catalogs
This adapter provides tube test sockets for compactrons, Novars, 5 and 7-pin nuvistors .
Please drop me a note if you have any contract numbers not listed or any "high" or "low" serial numbers to add in order to help get an idea of just how many of the TV-3 and TV series testers were built. The AC line fuse in this tester is supposed to be 1. Mine is missing. It has comparable functionality to the higher-priced sets and will provide all the capabilities I'll personally ever need in a tube tester.
Hickok and Loktals
Interestingly, this dead area in the winding is exactly the width of the contact on the slider. This set was advertised as being in "very good working condition", but when I received it and made some initial checks I quickly discovered there was no plate voltage from the 83 rectifier. To make the case fit properly I had to: - cut a notch out of the left side internal rib where the power transformer was hitting, so the front panels centers up.