![\"7.3\u03a9](\"https:\/\/busther.com.co\/wp-content\/uploads\/2026\/04\/RESISTENCIA-7.3-OHM-200W-OHM-PORCELANA-GRUESA-1-Photoroom-300x300.webp\")
Key Features of the 7.3\u03a9 200W Adjustable Resistor: High-Durability Construction: Wirewound on a high thermal conductivity ceramic core to prevent hot spots.<\/p>\n<\/li>\n Vitreous Enamel Coating: The rough gray finish is not just aesthetic; it protects the resistive wire against oxidation and moisture, ensuring long service life in industrial environments.<\/p>\n<\/li>\n Clamp Adjustment: Includes a stainless steel sliding contact that ensures a firm and stable electrical connection.<\/p>\n<\/li>\n Item Condition: Although it shows surface patina consistent with its vintage age, the filament has been tested to ensure continuity and accuracy within its original tolerance range.<\/p>\n<\/li>\n<\/ul>\n <\/p>\n Nominal Resistance: 7.3 \u03a9 (Ohms)<\/p>\n<\/li>\n Maximum Power Rating: 200W (Watts)<\/p>\n<\/li>\n Resistor Type: Wirewound<\/p>\n<\/li>\n Adjustment Method: Adjustable Slider (Semi-Fixed)<\/p>\n<\/li>\n Body Material: Ceramic and Vitreous Enamel<\/p>\n<\/li>\n Approx. Dimensions: (Based on 200W standard): ~260 mm length \u00ed\u2014 30 mm diameter<\/p>\n<\/li>\n Mounting: Ends designed for central bolt mounting or side clamp installation.<\/p>\n<\/li>\n<\/ul>\n Based on its morphology, the \u201c7.3\u201d marking, and the characteristic gray coating, this component corresponds to the classic product line of Ohmite Manufacturing Company (or competitors from the golden era such as Ward Leonard or Clarostat).<\/p>\n <\/p>\n Who is this product ideal for?<\/span><\/strong><\/p>\n Engineers & Technicians: Ideal for load banks used in power supply testing.<\/p>\n<\/li>\n Ham Radio Restorers: Critical replacement component for vacuum tube transmitters.<\/p>\n<\/li>\n Education: Ideal for laboratory experiments on Ohm\u2019s Law and heat dissipation.<\/p>\n<\/li>\n Industry: Suitable for DC motor speed control or inrush current limiting.<\/p>\n<\/li>\n<\/ul>\n Q: Can I use it to vary motor speed?<\/span><\/strong> Q: Why does the surface look rough and uneven? Q: Does it come with mounting hardware? Optimize your high-power projects with this 7.3\u03a9 200W Adjustable Resistor. Built with a robust ceramic core and durable vitreous enamel coating, this industrial-grade component enables precise adjustment through its sliding clamp. It\u2019s the perfect solution for test benches, vintage equipment restoration, or current control systems requiring superior heat dissipation up to 200 watts.<\/p>\n","protected":false},"featured_media":14373,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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<\/span><\/strong><\/p>\n\n
Technical Specifications \u2013 7.3\u03a9 200W Adjustable Resistor:
<\/span><\/h4>\n\n
![\"7.3\u03a9](\"https:\/\/busther.com.co\/wp-content\/uploads\/2026\/04\/RESISTENCIA-7.3-OHM-200W-OHM-PORCELANA-GRUESA-Photoroom-300x300.webp\")
History & Manufacturer
<\/span><\/h3>\nApplications & Target Audience \u2013 7.3\u03a9 200W Adjustable Resistor
<\/span><\/h3>\n\n
(FAQ)<\/span><\/h3>\n
A: Yes, as long as the motor\u2019s power consumption does not exceed 200W and the 0\u20137.3 ohm range is sufficient to achieve the required voltage drop.
<\/span><\/p>\n
A: This is characteristic of vintage vitreous enamel coating. Its purpose is thermal and protective, and it does not affect the electrical performance of the internal resistive element.<\/p>\n
A: The listing includes the resistor and the adjustable clamp shown in the photos. Additional chassis mounting hardware is not included.<\/p>\n","protected":false},"excerpt":{"rendered":"