Potentiometers: Rheostats
0.25 Ohm to 19.9 Ohm

High power pots, adjustable with knob or screwdriver. More convenient than adjustable resistors,
smaller package per watt than normal wire wound resistors.

Rheostat
0.25 Ohm
(RWA) AN315550.25
Rheostat. 0.25 ohm, 50 watt. 2 terminal. Slot adjust with locking nut. 2-3/8" body diameter. Made by Ward Leonard.
$18 ea - $16.50 (6+), $15 (25+)
Rheostat
0.5 Ohm
(RWA) 52838
Rheostat. Single turn. 0.5 ohm, 150 watt,17.3 amps maximum. 4"D body x 1-7/8". 1/4"D x 1/2"L "D" shaft extends 1/2" above threads. Requires 3/8" hole plus 1-3/4" c-c 1/4" mount screws. Made by Ohmite. NSN: 5905-00-918-2269.
$65 each
Rheostat
1 Ohm
(RWA) RP103FD1R0
Rheostat. 1 ohm, 12-1/2 watt, 3.53 amps. 0.879" body diameter. 0.71" behind panel depth. 1/8" "D" shaft, 0.333" long. Type R. Made by Memcor.
$15 each - $13.50 (6+)
Ohmite Rheostat
1 Ohm
(RWA) 36323
Ohmite rheostat. 1 ohm, 300 watts, 15 amps. 5" diameter body. 3/8" x 2-3/8"L shaft. New, old stock.
$119 each
Dual Rheostat
1.94 Ohm / 55 Ohm
(RWA) 45811A
Dual rheostat. 1.94 ohm, 50 watt, 6.2 amp max. 55 ohm, 25 watt, 1.2 amp max. 2-1/2" x 4-1/2" body overall. Concentric shafts: 1/4"D x 3/8"L & 3/16"D x 3/8"L. 3/4" total shaft length. Made by Ohmite.
$45 each
Rheostat
2 Ohm
Ohmite Rheostat 2 Ohm
(RWA) 8495
Rheostat. 2 ohm, 25 watt, 3.5 amp. 1.6"D x 1-4" behind panel depth. Slotted shaft with lock nut. Made by Ohmite.
$12.50 each - 11 (3+)
Rheostat
2 Ohm
(RWA) RP151FK2R0KK
Rheostat, panel mount. Single turn. 2 ohm, 5 amp, 50 watt, 10%. Type R-50. 2-3/8"D x 1-1/2" behind panel depth. 1/4"D x 2-1/4"L "C" round shaft. Made by Memcor.
$39 each
Rheostat
2.5 Ohm
(RWA) RP103FD2R5KK
Rheostat, panel mount. 2.5 ohm, 3.16 amp, 25 watt. 1-1/2" diameter body, 1-1/4" behind panel depth. 1/4"D x 1/2"L shaft. Alt. P/N: M22/03.00023FD. NSN: 5905-914-0885. Made by Ohmite.
$15 each
Rheostat
2.8 / 2.8 / 2.8 Ohm
(RWA) 43298B
Rheostat, 2.8 / 2.8 / 2.8 ohm, 8.4 ohm total. 2 terminal rheostats wired in series. 25 watt, 6 amp, stacked.
$25 each
Rheostat
3 Ohm
(RWA) RRS3R0
Rheostat, 3 ohm, 12.9 amp, 500 watts. 7-1/2"D x 2"H. 3/8" x 2"L shaft. Made by Ohmite.
$375
Rheostat
3 Ohm
(RWA) 7358543
Rheostat, 3 ohm, 3 watt.
$25 each
Rheostat
3 Ohm
Ohmite Rheostat 3 Ohm
(RWA) RP301FD3R0KK
Rheostat, 3 ohm, 7.07 amp, 150 watt. Type R-150. 1/4" x 1/2" shaft. 4" diameter body, 1-1/2" behind panel depth. NSN: 5905-00-838-6751. Made by Ohmite.
$65 each
Rheostat
3 Ohm
(RWA) RP101SA3R0KK
Rheostat, 3 ohm, 25 watt, 2.9 amps. Slot adjust. 1.5"D x 1.25" behind panel depth. Alt. P/N: M22/03-00031SA. Made by Ohmite.
$14 each
Rheostat
4 Ohm
(RWA) XR1473
Rheostat, 4 ohm, 100 watt, 8.15 amp. Tapered R-100 1/4" x 1/2"L. 3-1/4"D body x 1-3/4" behind panel depth. Made by Memcor.
$47 each - $42 (3+)
Rheostat
4 Ohm
(RWA) RP202FD4R0KK
Rheostat, 4 ohm, 4.33 amp. Type R-75. Single turn. 2-3/4" diameter body, 2" behind panel depth. 1/4" x 1/2" "D" shaft. Ceramic. Made by MemCor / Tru-Ohm.
$35 each - $33 (3+)
Dual Rheostat
4 Ohm
(RWA) R1000-4X2
Dual Memcor rheostat. 4 ohms, 600v, 1kw, 15.81 amp. Each with independent control to series or parallel. Each rheostat is 2-1/4" x 12". Assembly measures: 13-1/2" x 13-1/2" x 11". Great variable load for any lab!
$1,800
Triple Rheostat
4 Ohm
(RWA) R1000-4X3
Triple Memcor rheostat. 4 ohms, 600v, 1kw, 15.81 amps. 3 gang stack. Two end units are adjustable while center unit acts as a fixed resistor to be added in series or parallel. Each rheostat is 2-1/4" x 12". Assembly measures: 12" x 14" x 13-1/2" deep. Great variable load for any lab!
$2,500
Rheostat
4 Ohm
(RWA) RJS4R0
Rheostat, 4 ohm, 50 watt. 3.53 amps. 2-1/4"D body, 1/4" shaft. Made by Ohmite.
$27 each
Rheostat
Dual 4 Ohm
(RWA) 22631-2
Rheostat, dual 4 ohm, 50 watt, 1/4" shaft. 2-3/8" diameter.
$250 each
General Radio Rheostat
5 Ohm
(RWA) GR301-5
General Radio rheostat. 5 ohm, 1 amp, 12 watt. Type 301. 1/4" round shaft with pointer knob. 1-3/4"D x 2"H.
$39 each
Rheostat
6 Ohm
(RWA) M22/03-0052
Rheostat, 6 ohm, 25 watt, 2.04 amps. 1/4" slotted shaft. 1-5/8" diameter body, 1-3/8" behind panel depth. Made by Ohmite.
*** SOLD OUT ***
Rheostat
8 Ohm
(RWA) 6L7004
Rheostat, 8 ohm, 25 watt, 1.77 amp. Slot adjust, locking nut. 1.5" diameter body, 1-3/8" behind panel depth. Accommodates up to 0.390" thick panels. Made by McGuire. NSN: 5905-00-728-4830.
$26 each
Rheostat
8 Ohm
(RWA) RP101UB8R0KK
Rheostat, 8 ohm, 25 watt, 1.77 amp. Slot adjust, locking nut. 1.5" diameter body, 1.5" behind panel depth. Accommodates up to 0.178" thick panels. Made by Memcor. NSN: 5905-924-9230.
$23.50 each
Dual Rheostat
10 Ohm
(RWA) 59795
Dual rheostat, 10 ohm, 3.16 amp, 150 watt. 4-1/2"D x 4-1/2"L. 3/8"D x 5/8"L bushing. 1/4"D x 3/8"L shaft. Made by Ohmite. NSN: 5905-00-295-3971.
$90 each
General Radio Rheostat
10 Ohm
(RWA) GR301-10
General Radio rheostat. 10 ohm, 0.75 amp, 12 watt. Type 301. 1/4" shaft with pointer knob. 1-3/4"D x 2"H.
$39 each
B24 Warbird Rheostat
10 Ohm
(RWA) GK32B8882
General Radio rheostat. 10 ohm, 0.75 amp, 12 watt. Type 301. 1/4" shaft with pointer knob. 1-3/4"D x 2"H.
$25 each
B24 Warbird Rheostat
10 Ohm
(RWA) GK32B8882-K
General Radio rheostat same as (RWA) GK32B8882-K (left) except original B-24 knob is included.
$45 each
Rheostat
10 Ohm
(RWA) 1031A1488-2
Rheostat, 10 ohm, 50 watt, 2.2 amp, 5%. 2-5/16" diameter body, 1-3/8" behind panel depth. Slotted shaft with locking nut. Made by Ohmite. NSN: 5905-01-027-6635.
$39 each
Rheostat
10 Ohm
(RWA) AN3155-25-10
Aircraft rheostat, panel mount. 10 ohm, 1.95 amp, 0.30 min., 25 watts nominal. 2 terminal. Black bakelite bird's beak pointer knob included. Sealed. Fully CCW position is off (open). Clockwise rotation from off position proceeds from 10 ohms to zero ohms. 1-3/4"D x 2-1/2" deep. Made by Ohmite.
$40 each
Rheostat
3 Gang @ 4.6 ohms = 13.8 Ohms
(RWA) S2002-7
Rheostat, 3 gang. Log taper. Three (3) 4.6 ohm, 25 watt rheostats in series for 13.8 ohms total. Mounts by shaft end bushing and 4 holes in frame. 1-1/2" x 2-1/4" x 5-3/4" behind panel depth. 1/4"D x 5/8"L shaft. NSN: 5905-845-3145.
$35 each
Rheostat
11 Ohm @ 4.4 amps
24 Ohm @ 2.3 amps
(RWA) CM18552
Clarostat dual rheostat. 11 ohm @ 4.4 amps, 24 ohm @ 2.3 amps. 50 watts. 3-1/4" x 2-5/8" x 4"L. 3/16" & 1/4" concentric shafts. NSN: 5905-00-564-8034.
$95 each
Rheostat
15 Ohm
(RWA) H-15-L02
Rheostat, 15 ohm, 25 watt, 1.3 amp. Model H. Slot adjust with locking nut. Long bushing accomodates up to 0.31" panel thickness. 1.57"D x 1.36" behind panel depth. Made by Ohmite.
$18 ea - $16 (6+), $13 (25+)
Dual Rheostat
15 Ohm / 15 Ohm
(RWA) N152-15
Angstrom dual rheostat. 15 ohm / 15 ohm. 50 watts / 1.83 amps each. 2-1/2" x 3-1/2" x 5" overall. 2-3/4" mounting centers. Includes bakelite skirt knob. NSN: 5905-00-679-9936.
$49 each
Rheostat
15 Ohm
(RWA) OHM15-100W
Ohmite rheostat. 15 ohm, 2.58 amps, 100 watts. 3"D, 1-3/4" behind panel depth. 1/4"D x 9/16"L shaft. Removed.
$29 each
Rheostat
15 Ohm
(RWA) RP102FK150KK
Clarostat rheostat. 15 ohm, 1.29 amps, 25 watts. 1-5/8" outside diameter body. 1/4" x 2" shaft, 2 terminal only. 3/8" bushing mount.
$22 ea - $20.50 (6+), $19 (25+)
Rheostat
16 Ohm
(RWA) 16-50J
Rheostat, 16 ohm, 50 watts. 2-1/2"D x 1-1/4" behind panel depth. 6mm spline shaft. Mounts in 0.350" (8.9mm) hole. Made in Japan.
$19 ea - $17 (6+), $15 (25+)
Rheostat
18.9 / 26.4 Ohm
(RWA) 12382
Rheostat, 18.9 / 26.4 ohm, 50 watt, concentric shaft.
$40 each
CTS Rheostat
19 Ohm
(RWA) 28E157
CTS rheostat, 19 ohm, 12 watt. Includes 5/8"D brown Bakelite knob. Used, removed from new equipment. 1965.
$9 each