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.
|Genre:||Health and Food|
|Published (Last):||16 April 2011|
|PDF File Size:||9.86 Mb|
|ePub File Size:||4.67 Mb|
|Price:||Free* [*Free Regsitration Required]|
The TV is a nice compact military version Hickok. Meh,there’s nothing wrong with a tube rectifier,mercury or vacuum type.
About a zillion years ago I made an adapter from an old tube socket for mine so I could test ‘s.
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.
The B and C units have a “VR” function to give a quantitative test on 60a regulator tubes like 0A2. 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. Most of the physical wear on this hikcok occurs on t No button cover knobs are included.
Western Electric KS version in photo. Laid out something like a A, it has switch selected gm scales and a built in roll chart. It is basically a A on steroids. And as mentioned above, you can make an adapter if need be. Has switch selected micromho ranges. Browse Related Browse Related. It is classic military construction with potted transformers, ceramic sockets on the minis and octal, and hermetically sealed caps. Discussion in ‘ Tube Audio ‘ started by tube-a-louDec 7, Number of bids and bid amounts may be slightly out of date.
Hickok A tube tester | It Audio / Tonegeek
The A does not have this. Has switch selected gm ranges like A. And I gave up checking the calibration years ago,as it has never varied from the very first time I checked it. No, create an account now. This allows you to set bias to a measured voltage, and set the line during the gm test. 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!
If you ever get to see inside of a TV-7, it is really built. Good,solid and reliable tester. 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. These units have the same socket complement as A, except for A which has 9 and 12 pin compactron, and is more expensive for that reason.
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.
Don’t get me wrong, the is a great machine but, so is the A. Sam Cogley and thorpej like this. 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. No 9 or 12 pin compactron. The has sockets up to 9-pin mini. I test a lot of early octal tubes, and they are all on the chart!
These are nice compact testers and data is widely available. The TV-3 is a very cool tester. The model is somewhat similar to but really demands a premium price, and can be touchy to keep running. New York City, NY.
Hickok A | Audiokarma Home Audio Stereo Discussion Forums
If you understand how the tester works, you can come up with your own settings and just read the gm numbers and make your own assessment based on the tube’s data sheet and your tolerance for Skip to main content. One can only imagine if our enemies got a hold of a TV! You must log in or sign up to reply here. Big HarryDec 8, Check operation of all switches and check tube sockets, clean and tighten as required.
About equal to a 25 watt bulb.
The TV reads out in umhos where the TV-7 reads on a ” quality” scale for gm. The A does not have 4,5,7 pin older sockets, but it does have the 9 and 12 pin compactrons.
Sam CogleyDec 9, My A and often run 8 hours or more a day,and have done so for decades. All the switch decks and sockets are ceramic, and the capacitors are hermetically sealed. These are the famous FAA testers. This may need a shot of Deoxit but otherwise will work fine. This is a must, if you test a lot of 12AX7’s!
A recommended list of Hickok tube testers. Do you already have an account?
Up for sale here is this complete pushbutton switch set from a Hickok A tube tester. Top quality Government construction.