Hickok Tv-3b/u Military Tube Tester/ Multimeter, Capacitance- Working Condition!

US $590

  • Los Altos, California, United States
  • Feb 25th
This is an operating Navy tube/voltage/capacitor/resistor tester. It is unique in that it serves as a tube tester, a multimeter, and a capacitance tester, all in one unit! I took this out of my lab storage (basement) not remembering how to use it but lucky to have full instructions right on the inside front panel! The handy scrolling tube chart using a thumbwheel, list all of the most common tubes from the 30's to the 60's. The common guitar amplifier input and power tubes can be tested for matching without buying $60-80 Groove Tubes! Ham radio operators will be able to check their common tubes as well. If you need to check that a tube is present in the scrolling tube index, contact me (yes, 6V6's are included, I just tested one). Of course, since it is Navy, the case is almost torpedo proof! The first photo illustrates the measurement of a 6AL5, twin diode tube just to show that the unit works. The second photo shows the measurement of a 0.1uF capacitor--the meter is amazingly accurate! The third picture shows the measurement of a 3.9k Ohm resistor, and again the meter is amazingly accurate. I guess the accuracy was specified (and paid for) by the Navy, to make sure we could win the war...but which war, I do not know. I do not know the age of the unit but the serial number is #2848. I did not even know that this unit was capable of measuring low values of capacitance until I brought it out today. The case is not perfect so it must have had a few shells come close years ago. I have had the unit for about the last 20 years and bought it just to measure tubes on a VERY infrequent basis since everything I have built has been solid state, but when you need a tube tester... This is just for the audiophile, guitariest, ham radio operator, or collector.

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