Potentiometers: Rheostats
100 Ohm to 999.9 Ohm
High power pots, adjustable with knob or screwdriver. More convenient than adjustable resistors,
smaller package per watt than normal wire wound resistors.

Memcor Dual Rheostat
100/150 Ohm
(RWA) 45405
Memcor dual rheostat, 100 ohm, 0.5 amp, 25 watt. 150 ohm, 0.41 amp, 25 watt. Dual concentric shaft 3/16" x 1/4". 2-1/2"W bracket. 3-1/2" behind panel. DLA-900-88-M-KX93. NSN: 5905-00-755-0850.
$75 each
Ohmite Rheostat
100 Ohm
(RWA) RLS180-0536
Ohmite rheostat, 100 ohm, 1.225 amp, 150 watt. 3-3/4"d. 1/4" shaft.
$49 each
Ohmite Rheostat
100 Ohm
(RWA) RP101FK101KK
Ohmite rheostat, 100 ohm, 0.5 amp, 25 watt, 10%. 1-1/2" diameter. 1-1/2" behind. 1/4" x 2-1/8" "D" shaft. Alt P/N: M22-03-00-131FK. DSA-900-76-M-G-300. NSN: 5905-00-195-2311.
$20 each - $18 (6+)
Ohmite Rheostat
100 Ohm
(RWA) 47094-2
Ohmite rheostat, 100 ohm, 0.35 amp, 12.5 watt. 1/8" x 1/8" round slotted shaft wtih lock nut. 7/8"d x 5/8" behind.
$15 each
Rheostat
100 Ohm
(RWA) M220300131S
Rheostat, 100 ohm, 0.5 amp, 25 watt.
*** SOLD OUT ***
Rheostat
100 Ohm
(RWA) 208A495G03
Rheostat, 100 ohm, 0.71 amp, 50 watt. Made by Angstrohm Precision Inc.
$65 each
Rheostat
135 Ohm
(RWA) 567-B
Rheostat, 135 ohm, 3.53 amp, 150 watt. Some rust / corrosion from damp storage, but has excellent operation. 4" diameter x 2-3/4" high, 1/4" "D" shaft. Made by Ohmite. NSN: 5905-00-474-7717.
$29 each
Dual Resistor Variable
142 Ohm / 142 Ohm
(RWA) K43647-1
Dual resistor variable, Navy rheostat. Sealed. 142 ohm / 142 ohm. 5.5 - 0.6 amps, 120v, 500 watts. 6-1/2"D, 6" behind panel depth. 1/2" x 1-1/2" shaft. NSN: 5905-00-854-7169.
$450 each
Enclosed Aircraft Rheostat
150 Ohm
(RWA) AN3155-50-150
Clarostat enclosed aircraft rheostat. 150 ohms, 50 watts. 0.59 amp to 0.17 amp. 2.36"D x 2.17" behind panel depth. 3/8" bushing mount. 1/4"D x 3/8"L shaft. Used, removed.
$15 each - $12 (3+)
Ohmite Rheostat
175 Ohm
(RWA) 0153
Ohmite rheostat, 175 ohm, 0.38 amp, 25 watt. 1-5/8"D. 1/4"x 1/2" shaft.
$18 each
Rheostat
200 Ohm
(RWA) S135421/45
Rheostat, 200 ohm, 0.4 amp, 250 volt. 4" diameter body x 2" deep. Made by Westinghouse. NSN: 5905-00-393-2742.
*** SOLD OUT ***
Rheostat
200 Ohm
(RWA) RP101SJ201KK
Rheostat, 200 ohm, 0.35 amp, 25 watt, 10%. 1-1/2"D x 1-1/4" body. 1/4"D x 1-1/2"L slotted shaft. Made by Memcor. NSN: 5905-01-120-5757.
$20 each - $18 (6+)
General Radio Rheostat
200 Ohm
(RWA) GR301-200
General Radio rheostat. 200 ohm, 175ma, 6 watt. Type 301. 1/4" shaft with pointer knob. 1-3/4"D x 2"H.
$35 each
Dual Rheostat
245 / 245 Ohm
(RWA) 57936
Dual rheostat, 245 / 245 ohm, 150 watt. Both elements driven by one shaft. Knob "free-wheels" until depressed which engages rotor and turns armature. 5"D x 9-1/4"L maximum dimensions. 3"D skirt. New, surplus, circa 1950. Made by Ohmite.
$115 each - $100 (2+)
Dual Rheostat
250 / 250 Ohm
(RWA) H250L0-1T2
Dual rheostat, 250 / 250 ohm, 25 watt, 0.316 amp. Panel mount. 2-1/4" maximum diameter, 3-3/8" behind panel depth. Slot adjust shaft with lock bushing. Made by Ohmite. NSN: 5905-00-969-0691.
$33 each
Rheostat
250 Ohm
(RWA) 0154
Rheostat, 250 ohm, 0.32 amp, 25 watt, 1/4" shaft. 1.5" diameter. Made by Ohmite.
*** SOLD OUT ***
Rheostat
300 / 300 / 800 / 1150 Ohm
(RWA) 43649
Rheostat, 300 / 300 / 800 / 1150 ohm, 25 watt, stacked.
$75 each
Rheostat
320 Ohm
(RWA) N320-F10
Rheostat, 320 ohm, 0.97 amp, 300 watt, 5-1/2" diameter.
*** SOLD OUT ***
Rheostat
500 Ohm
(RWA) RA75ASA501AK25
Ohmite rheostat. 500 ohm, 25 watts, 0.22 amps. 1-1/2"D. 0.373"D x 0.511"L bushing. Slot adjust.
$21 each - $19 (6+), $17.33 (50+)
Hardwick Hindle Rheostat
500 Ohm
(RWA) RP251FE501KK
Hardwick Hindle rheostat. 500 ohm, 0.448 amps, 150 watt. 3"D. 1-3/4" behind. 1/4" x 1/2" shaft. Model H100.
$45 each
Rheostat
500 Ohm
(RWA) 0324
Rheostat, 500 ohm, 0.32 amp, 50 watt. Bushing mount - 3/8" hole. 2.28" diameter, 1.38" behind panel. 1/4"D x 3/8"L shaft. UL listed. Made by Ohmite.
$15 each
Rheostat
500 Ohm
(RWA) 1012705A-15
Rheostat, 500 ohm, 3 watt with slotted shaft.
$45 each
Rheostat
500 Ohm
(RWA) RH0012H3500-JDB
Rheostat, 500 ohm, 0.16 amp. Panel mount. Type R-12 1/2. 0.875"D x 0.80" behind. 1/8"D x 3/8"L "D" shaft. Made by Memcor.
$18 each
Rheostat
500 / 0 / 500 Ohm
(RWA) RH25H4100J
Rheostat, 500 / 0 / 500 ohm, 0.22 amp, 25 watt, 1/4" shaft.
$20 each
Dual Rheostat
500 / 500 Ohm
(RWA) E500-500
Dual rheostat, 500 / 500 ohm, both sections @ 0.16 amps, 12.5 watt. 7/8"D body. 1/8"D x 3/8"L shaft. Overall size measures 7/8"W x 2-1/2"L x 1-1/8"H. Made by Ohmite. P/N: E500-500R1T2.
$29 each
Rheostat
500 / 500 / 500 Ohm
(RWA) 44224
Rheostat, 500 / 500 / 500 ohm, 0.32 amp, 50 watt, stacked. 2-1/8" diameter. Made by Ohmite.
$45 each
Ohmite 4- Gang Rheostat
500 / 750 / 750 / 1k Ohm
(RWA) E1000-750-750
Ohmite 4-gang rheostat. 500 / 750 / 750 / 1k ohm. 0.16 / 0.13 / 0.13 / 0.011 amp. 12.5 watt. 10% x 4. 1/8" round slotted shaft with lock nut. DLA900-67-M-ZC89. NSN: 5905-00-960-2237.
$35 each
Rheostat
750 / 750 / 1k / 1k Ohm
(RWA) E1000-750
Rheostat, 750 / 750 / 1k / 1k ohm, 12.5 watt, stacked. 750 ohm elements, 0.13 amps. 1k ohm elements, 0.11 amps. Overall dimensions 5-3/4"L x 1" x 1-1/4". Slot adjust. Made by Ohmite.
$35 each
Rheostat
750 Ohm
(RWA) R75-750
Rheostat, 750 ohm, 75 watt, 0.32 amp, 10%. Type R75. 2-1/2" diameter body, 1-3/4" behind panel depth. 1/4" x 1/4" round slotted shaft with lock. Made by Memcor. NSN: 5905-00-617-2112.
$35 each - $33 (3+)
Rheostat
800 Ohm
(RWA) A-29418-5
Rheostat, 800 ohm, 50 watt, 0.25 amp. Type R-50. 2-1/4" diameter body, 1-3/8" behind panel depth. 1/4" diameter x 1/2" long round shaft. Made by Memcor. NSN: 5905-01-013-4370.
$12 each