Miscellaneous

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

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