The I is a World War II era design mutual conductance tube tester capable of checking older 4-pin on up to 7-pin miniature tubes. It does not check 9-pin NOVAL or newer tubes without an add-on MXA/U adapter, but the MX can be hard to find. The I uses a . Hickok Tube Tester Model: I Made for the US Military in Branded under the name of Signal Corps but manufactured by Hickok Camouflage metal carrying case User Manual included Sold as-is. This unit has not been serviced or calibrated. The I is a valve tester used extensively by the USA Signal Corps and the US Navy during World War II. It is a small portable tester, for measuring valve characteristics, such as short circuits, cathode emission, gas, and mutual conductance. The I was designed by Hickok for the Signal Corps, and ruggedised for military field use.
The I has an interesting way it operates, and this is worth a few lines here. They use their famous patented Hickok circuit, but in the I they added a potentiometer which does noting else then change the meter sensitivity. The signal going to the meter has to pass an attenuator potentiometer. This is the "L" potentiometer. Model I is a very old US Military dynamic mutual conductance tube tester that was used during World War II years. The War Department Technical Manual is dated August , and the tester calibrated in this article is dated April The unit is extremely well-built. - I am not sure about my initial settings. For the JR 0 0 on the Hickok , I used A=8, B=5, Fil= I also think that 80 grade scale for L and R pots on IB correspond to an scale on Hickok -In order to supply the 50V I only have a variac, not isolation transformer available.
Test data I IA IB Test data adapter MX/U, bytes. TMpdf, Technical Manual Tube tester I, bytes. You can test the 12AX7 and many tubes on your I with this adapter kit. It has 1 month ago on www.doorway.ru · HICKOK TUBE TESTER MANUALS. Dennis Carter. Dennis Carter. K subscribers. Subscribe. Here is the final of the Hickok IB tube tester. Show less Show more.
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