Superior Electric Powerstat Brush Assembly WBD1800 RB-1800 Luxtrol Dimmer NOS For Sale

Superior Electric Powerstat Brush Assembly

Genuine New Old Stock (NOS) Replacement Part for Type WBD1800 / RB-1800

Overview

For sale is a genuine vintage replacement carbon brush assembly manufactured by The Superior Electric Company. This specialized component is a New Old Stock (NOS) service part designed explicitly to maintain flawless electrical contact with the commutator surface inside high-grade variable transformers and industrial theater lighting dimmers.

This complete kit includes the raw brass mounting block, thick copper braided pigtail shunt wire, pre-fit carbon contact block, two original binder-head mounting screws, and one split lock washer. Additionally, the original factory-printed paper foldout instruction sheet is fully intact, providing the step-by-step alignment and installation steps required for proper service tracking.

Please evaluate the cosmetic condition based on the high-resolution photographs provided. You will receive the exact boxed brush assembly kit pictured.

Family Backstory & Provenance

This vintage component comes directly from the personal trade collection of my late father, who spent over 40 years as a proud journeyman electrician and electrical inspector out of Portland, Oregon. This kit was kept among his spare service parts, tools, and other electrical oddities. Having recently uncovered it while going through his estate, I am offering it here in an effort to pass along a clean piece of vintage American-made hardware to a fellow working technician, tradesperson, or collector of historic hardware.

Item Specifics

• Brand: The Superior Electric Company (Bristol, Conn., USA)
• Part Type: Variable Transformer Replacement Carbon Brush Assembly
• Model / Designation: Type WBD1800 / RB-1800
• System Compatibility: Luxtrol Light Controls & Powerstat Variable Transformers
• Series Compatibility: WBD450, WBD800, WBD1800, and D1200 series lines
• Material Component: Raw Machined Brass Holder, Dense Carbon Block, Braided Copper Shunt
• Inclusions: 2 Screws, 1 Lock Washer, Original Box, Factory Paper Instructions (MS2105G6)
• Provenance: Estate of a Longtime Journeyman Electrician & Inspector
• Country of Origin: Made in the United States

Condition Report

This assembly is in New Old Stock (NOS) / Unused vintage condition. The brass block shows a natural, uniform dull aging and light storage tarnish from decades inside the box, but features no wear or prior mechanical tracking marks. The carbon block face remains perfectly flat, crisp, unchipped, and complete. The copper braid is highly flexible with no structural fraying. The hardware components are bright and clean. The original box is fully stable with legible text stamping, showing standard minor shelf scuffs and light age-toning. The original paper instruction sheet remains crisp and readable with some light storage folds.

Seller's Note & Integrity

I am a longtime, highly trusted seller currently liquidating select odds and ends from my possessions. I stand firmly behind fair, transparent, and honest transactions. Please check my extensive positive response profile and buy with 100% confidence!

• Domestic Shipping: Fast shipping to any verified address within the United States. Packed cleanly inside a sturdy box to prevent any damage to the vintage carbon block or paper instructions for a flat rate of $5.50.

• International Shipping: Fully supported worldwide via 's International Shipping program. Please consult the built-in shipping calculator on this page for a quote specific to your country.

• Returns: 100% satisfaction guaranteed. If you are not thoroughly delighted upon delivery, this brush kit assembly may be returned to me for a full refund.

• Questions: Please reach out via messages prior to purchasing if you require any additional details or context. I am always happy to help.

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