{"product_id":"farm-radio-power-supply","title":"Farm Radio Power Supply | Antique Radio Battery Converter","description":"\u003ch3\u003e\u003cspan\u003eBring Your Vintage Farm Radio Back to Life – Anywhere\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRediscover the warmth, character, and nostalgia of antique tube radios with this versatile \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFarm Radio Power Supply and Battery Voltage Converter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for vintage battery-operated vacuum tube radio receivers and transceivers, this compact device provides the multiple voltages required to operate classic radios using \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ea single DC power source\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOriginal farm radios frequently required several separate batteries to supply filament, plate, and grid voltages. These batteries can be difficult to find, costly to replace, and inconvenient to maintain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eantique radio battery consolidator\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e solves that problem by converting a single \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e11–30V DC input\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e into the multiple A, B, and C voltages needed by compatible vintage tube radios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're restoring a treasured family heirloom, testing a vintage receiver on your workbench, or operating a classic radio where AC electricity is unavailable, this power supply provides a convenient solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEnjoy the golden age of radio without the inconvenience of multiple obsolete batteries.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Battery Converter \u0026amp; Eliminator for Vintage Tube Radios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExperience the convenience of modern power conversion while preserving the authentic operation of your antique radio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike a conventional single-voltage power adapter, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efarm radio power supply\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e generates multiple output voltages from one DC input, making it ideal for vintage receivers that originally depended on separate A, B, and C batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTwo Convenient Ways to Power Your Radio:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePortable Battery Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Connect a suitable 11–30V DC battery to operate compatible vintage radios in locations without AC power. Ideal for mobile use, outdoor demonstrations, antique radio exhibitions, and remote locations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAC-Powered Battery Eliminator:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Connect a properly sized linear AC\/DC converter to power your radio from household electricity, eliminating the need for traditional radio batteries. A compatible 24W linear AC\/DC adapter is available separately for an additional $20.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdditional Features and Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple Voltages from One Source:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Consolidates the A, B, and C supplies required by many antique vacuum tube radios.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdjustable Filament Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supports a range of filament power requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMultiple Plate Voltage Outputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Supplies commonly required high voltages for vintage tube radio circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGrid Bias Outputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides negative bias voltages for compatible receivers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConvenient Status Indicators:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Two lights show power supply operation and radio plate-current activity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBuilt-In Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Overload, short-circuit, and reverse-polarity protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact, Lightweight Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Convenient for both workbench restoration and portable operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision A, B \u0026amp; C Voltage Supplies for Antique Radio Restoration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEngineered for vintage battery-operated tube receivers, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eantique radio power supply\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers multiple voltage outputs in a compact enclosure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRating\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDC Input Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e11–30V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eA Supply – Filament\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.25–6.5V, 3A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eB Supply – Plate\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e135V \/ 80mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAdditional B Output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e90V \/ 60mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAdditional B Output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e67.5V \/ 40mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAdditional B Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45V and 22.5V \/ 5mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCombined B Output Limit\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLess than 80mA total\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eC Supply – Grid Bias\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-4.5V, -9V, -22.5V \/ 2mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStandby Power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLess than 4W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0–35°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions with Cover\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.7\" × 4.7\" × 4\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight Without Cover\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18 oz. (without battery or converter)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eOutput voltages can be modified for specific applications.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Indicators and Connections\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTwo indicator lights provide convenient operating information:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Indicator:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Illuminates when a battery or DC source is connected and the converter's power switch is ON.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRadio Operation Indicator:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Illuminates when the connected radio is ON and drawing plate current from the 135V, 90V, or 67.5V supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eA slide switch connects B− to either A− or A+, allowing configuration for compatible radio circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant Compatibility Restriction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This device \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCANNOT be used with self-biasing radios requiring electrically isolated A and B batteries\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, including radios without a direct connection between the original A and B battery circuits. Confirm your radio's electrical requirements and wiring before connecting the converter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Source Options\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe DC input can be supplied by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA compatible 11–30V DC battery (not included)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA properly sized linear AC\/DC converter (not included)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eYour own suitable bench DC power supply\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eA compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24W linear AC\/DC adapter is available for an additional $20\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Contact us to add this option and operate the unit as a battery eliminator.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFarm Radio Battery Converter \/ Power Supply\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtective Cover\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e9-Conductor Connection Cable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUser Manual\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e12-Month Guarantee\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eBattery and AC\/DC converter shown in product photos are not included with the standard purchase.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePreserve the Past. Power Your Vintage Radio Today.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're a dedicated antique radio collector, an electronics restoration enthusiast, or someone preserving a treasured family radio, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003evintage farm radio battery converter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers the flexibility of portable DC operation and the convenience of an optional AC-powered battery eliminator.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOrder your Farm Radio Power Supply today and help bring your classic vacuum tube radio back to life.     These are made on demand.  Please allow up to 15 days for delivery.  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Big River Hardware","offers":[{"title":"Battery Converter","offer_id":68115092111666,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true},{"title":"Battery Converter with  24W linear AC\/DC adapter","offer_id":68115092144434,"sku":null,"price":170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/s-l1600_2.jpg?v=1779557735","url":"https:\/\/bigriverhardware.com\/products\/farm-radio-power-supply","provider":"Big River Hardware","version":"1.0","type":"link"}