Manufactured to military standards by Allen Bradley in the 1970's these are best quality Type J vintage hot molded carbon composite bush mounting potentiometers, 100 Ohm linear 10% and high 2.25 Watt rated, to 500Vdc.
AB full part number is JA1N200P101UA
Standard AB carbon pots were used in many high end audio applications, these mil-spec versions are even better !
We took one to pieces to see how they are constructed, and they are superb. A wide carbon track laid down on a really thick molded paxolin body. The wiper is a 3mm carbon block in a beryllium copper mount which ensures low noise and long life. Connections are heavy solder eye tags.
Body dimensions are 28mm diameter x 15mm deep, plus the shaft which has a 8mm diameter threaded through panel part which is 10mm in length, plus the long stainless steel control spindle which is 40mm long and the standard 6.3mm (1/4") in diameter.
Electrical rotation is 280 degrees and mechanical is 316.
These vintage pots are in perfect condition, in their original boxes and supplied with lock nut.
Please note, these are our last few and the boxes are not in great condition for the last few of our stock. The resistors however are pristine.