I am not saying that you should not purchase a Hickok like a or at the are compact bench top models that are basically laid out as this A above. Use this procedure to test and calibrate the Hickok Model /A mutual conductance (AKA transconductance) tube testers. Except as noted, all of the. I have a Hickok Model A tube tester that I’m learning to use. Hopefully someone here can answer a question for me. On the micromho meter.
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I am not saying that you should not purchase a Hickok like a or at the right price and condition, however in the absence of other considerations, these are good choices. Has sockets up to 9-pin mini.
These bickok the successors to the series. Log in or Sign up. Has switch selected gm ranges like A.
Hickok A Test and Calibration
This allows you to set bias to a measured voltage, and set the line during the gm test. The best feature of the ‘s is the dual triode test buttons-you can test both halves of a twin triode without re-setting the selectors. I better check that when I get it! Tom BavisDec 7, Retrovert and Sam Cogley like this. Manual is 74 pages long. There is supplemental test hickook for TV-7 available online.
This is the best of nickok basic early testers. Plus,the heat is your friend,as it keeps the humidity at bay,and as there’s so many holes in that panel,there’s plenty of ventilation.
If most of the screws are gone it means that somebody knowledgeable looked inside and decided the tester was SHOT and there was no point in bothering to put all the screws back in. Appears to be in great shape and working. TV and TV-7 Military tester. I need to watch that A video just to hickko sure my A is calibrated properly.
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The model is somewhat similar to but really demands a premium price, and can be touchy to keep running. Don’t buy a tester that is recommended by hearsay-like “it worked when my uncle had it” or “Ray the radio guy said it’s fine, but I don’t know how to run it”.
Just off the shoulder of Orion. And as mentioned above, you can make an adapter if need be.
The A does not huckok 4,5,7 pin older sockets, but it does have the 9 and 12 pin compactrons. I’ve had a a on my bench for the past 25 years and it is a good tester.
Discussion in ‘ Tube Audio ‘ started by tube-a-louDec 7, The has sockets up to 9-pin hickoo. And I gave up checking the calibration years ago,as it has never varied from the very first time I checked it.
A recommended list of Hickok tube testers
This tester will give you the most repeatable tests. Provide a checklist and instruct Handy size and any tube data not on the roll chart you can find elsewhere. If you ever 060a to see inside of a TV-7, it is really built. That’s what the unit was designed around,with due consideration to filament draw and sag under different load conditions. The biggest issue is that the power cord’s insulation is starting to crack in places, and also the plate cap adapter cable is brittle and cracking.
This may need a shot of Deoxit but otherwise will work fine. Check operation of all switches and check tube sockets, clean and tighten as required. The B and C units have a “VR” function to give a quantitative test on voltage regulator tubes like 0A2.
Calibration and Testing of the Hickok Model 600/600A Tube Testers
The “A” model has the 9 and 12 pin compactron sockets and is more money. I test a lot of early octal tubes, and they are all on the chart! Meh,there’s nothing wrong with a tube rectifier,mercury or vacuum type. If you don’t need to test modern types like Novars and Compactrons,this is a great machine. The TV-7 is very similar to TV but has flip-chart tube data in the upper lid of the unit. This is a must, if you test a lot of 12AX7’s!
I bought a large lot of 1 volt radio tubes from a radio amateur’s estate sale and am testing them and passing them along to you very cheap! The full military manual comes with instructions regarding the destruction of the tester using explosives, axes, or throwing it overboard, to avoid the tester coming into the possession of an enemy power. They are older than the B and C’s, and for this reason it is important to only buy one in good working order, but this tester has been my bench tester for over a year, and I have gotten to like it a lot.
Data is widely available for the B, C units. Upset that and you’ve upset the whole applecart.
Up for sale here is hixkok complete pushbutton switch set from a Hickok A tube tester. Haven’t found any official Hickok documentation on that, but there’s a fantastic thread here about it: New York City, NY.