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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This may work in oth Log in or Sign up. Handy size and any tube data not on the roll chart you can find elsewhere.

Check operation of all switches and tube sockets, clean and tighten as required. 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.

Hickok 600A tube tester

Laid out something like a A, it has switch selected gm scales and a built in roll chart. These are the famous FAA testers. I test a lot of early octal tubes, and they are all on the chart!


There is supplemental test data for TV-7 available online. Thank you I downloaded the manual, the unit nickok clean but the case looks a bit beat but should clean up.

Hickok A tube tester | It Audio / Tonegeek

The seller says it works It lights up, I hope it’s a good thing. I better check that when I get it!

Plus,the heat is your friend,as it keeps the humidity at bay,and as there’s so many holes ihckok that panel,there’s plenty of ventilation.

I’m sure these tester are build to last, it should be fun digging into it and doing a restore. I recently picked up a A as well They are easy to calibrate and instructions available on the internet. Contains data for 10 hickok models.

TV and TV-7 Military tester. Upset that and you’ve upset the whole applecart. It is used and in good shape with light wear. And I gave up checking the calibration years ago,as it has never varied from the very first time I checked it.


The model is somewhat similar to but really demands a premium price, and can be touchy to keep running. A super value compared with TV and TV These models are compact bench top models that are basically laid out as this A above.

The B and C units have a “VR” function to give a quantitative test on voltage regulator tubes like 0A2. Hidkok you know what? Up for sale here is hickoj selector switch from a Hickok A tube tester.


A recommended list of Hickok tube testers

Retrovert and Sam Cogley like this. This allows you to set bias hkckok a measured voltage, and set the line during the gm test. 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.

I need to watch that A video just to make sure my A is calibrated properly. If you ever get to see inside of a TV-7, it is really built. I had a A, my first tester.

But I would verify the calibration.

You must log in or sign up to reply here. The “A” model has the 9 and 12 pin compactron sockets and is more money.

The A does not have this. Has switch selected gm ranges like A.