Rheostats And Adjustable

AO Smith - Joslyn Clark Control Division - 128-683 Rheostat. Vitrohm Plate Type.

Vitrohm pressed steel rheostats furnish a simple, accurate and economical method of field control. They are universally applied for adjusting generator, alternator and exciter field currents to obtain variations in output voltage and for field control of adjustable speed D.C. and synchronous motors. Other typical applications include heater, furnace, battery charging and other controls.

Rheostat Potentiometer Speed Control

Spring Loaded Wiper with Thick Silver Face

Dual 1.25 Ohms 36.8Amp 600V. 128-683.

ED No 90004LH.

Dimensions: 14-3/4" Diameter x 8-1/2" High. 

Approximately Weight: 26 lbs.

Genuine Vintage Joslyn Clark - New Old Stock

Read more on https://www.specialtyproducttechnologies.com/joslyn-clark/products/other-components/rheostats

Proudly Made in USA

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CLAROSTAT - VR-003 - Rheostat. 2 Ohm. Vintage Radio Tube Filament Control, New Old Stock.

Used in series with tube filaments to adjust current. Extends the "useful" life of RF tubes to keep the emission of the tube above the recommended minimum for the maximum amount of time.

Resistance: 2 Ohm.

Technology: Wirewound.

Mount: Panel.

Threaded Bushing: 3/8" D x 11.3mm long,

Shaft: 1/4" D x 2.5mm high. Screw Driver Adjustable.

Contacts: 2 Solder Hooks.

Marked 140-660, X-4094-C.

Alternates/Similar: Carter Radio Co. / Central Radio Laboratories Pot Control Wire Wound Rheostats

Genuine Vintage Clarostat - New Old Stock 

Made in USA

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Resistor, ceramic. Resistance: 3 Ohm. Power: 25 watt. Adjustable with slider. Technology: wirewound. Enamel coated. Dimensions: 0.690" x 1.973" long or 0.707" D x 2.001" long. Radial lug. Note: Marked 30/25A3 or 25954.1-43. Maybe replaced with Ohmite 0361 3 Ohm 25W Adj. Learn More

OHMITE - 46361A Rheostat.

Dual Gang 64 Ohm 0.80Amp Each 25Watt.

Max. Voltage: 500 V RMS

Type: Wirewound

Core: Open

Shaft Diameter: 0.25" X 0.50" Length

Plus SPST Toggle Switch.

Sturdy Steel Anodized Mounting Brackets

All in One Assembly.

New Old Stock

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OHMITE - 54495 - Rheostat.

Wire Wound

Dual Gang 100 Ohm 25Watt.

Alternate: Dual RHL100

New Old Stock

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OHMITE - RLS -Model L Dual, 150W Rheostat.

Commercial Dual Model L - 585-OHM and 378-OHM Rheostats in Tandem

585-OHM 0.17-0.21AMP

378-OHM 0.21-0.7AMP

Voltage Rating: 300V

Wirewound Open Core, Silicon-Ceramic Coated 

Rotation: 300 Degrees

Termianal Type: Solder

4" Diameter Mounted on a U bracket

Shaft Diameter: 0.250" & 0.500" long.

10% Tolerance. 3208-P-51

Never Used - New Old Stock from Ohmite Factory

Mounted on Heavy U-Bracket 

One Rheostate shaft pilots into the back of first, Can be separated.

Applications: Welders, Battery Chargers, Power Supplies, Light Control, Bios Active Elements & Lab Loading. 

Special Order Factory Overstock

Made in USA

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Rheostat. 1600 Ohm 1.2 - 0.23Amp 600V maximum. ED No. 74042 LH. Type M. Three terminals. Dimensions: 8-3/4" D x 3" high. Learn More

Rheostat. 1600 Ohm 1.2 - 0.23Amp 600V maximum. ED No. 71860. Type M. Two terminals. Dimensions: 8-3/4" D x 3" high. Learn More

Resistor, ceramic. Resistance: 4K Ohm. Power: 25 watt. Adjustable w/o slider. Technology: wirewound. Enamel coated. Dimensions: 0.6950" D x 2" long. Radial lug. Note: Maybe replaced with Ohmite 0381 4K Ohm 25W Adj. Learn More

WARD LEONARD - RWA30W10K - Resistor, Ceramic.

Resistance: 10K Ohm.

Power: 25 watt.

Adjustable with Slider.

Technology: Wirewound.

Enamel Coated.

Dimensions: 0.687" Diameter x 2" Long.

Connection: Radial Lug.

Note: Maybe replaced with equal by Ohmite D25K1K0 / 0375 1K Ohm 25W Adj.

Alternate: NTE 25WA310, Ohmite D25K10KE

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Resistor, trimming. Resistance: 100K Ohm. Mount: PCB. Dimensions: 0.594" D (0.749" with leads) x 0.293" above board. manual adjustable knob on top. Package of 10. Learn More