{"product_id":"156021","title":"54-77","description":"\u003cp\u003e549-6711 Vintage plate power transformer manufactured for Heath Company - The Heathkit 54-77 is the official manufacturer part number for a vintage plate power transformer manufactured for Heath Company. It serves as the primary high-voltage transformer responsible for delivering the main B+ voltage inside specialized electronic kit gear.Primary ApplicationThis specific component was designed for the Heathkit IP-32 Variable Regulated Power Supply, a popular bench instrument used by technicians and hobbyists to develop and test tube-based circuitry.The transformer works in tandem with a secondary filament transformer (Heathkit part number 54-76) inside the unit.Associated SpecificationsWhile the internal winding metrics of the standalone 54-77 part number are proprietary to the vintage build, it directly supplies the core architecture required to meet the Heathkit IP-32 device specifications:Input Power Requirements: 105 to 125 volts AC, 50\/60 Hz (150 watts maximum consumption)Regulated B+ Output Range: 0 to 400 volts DC regulated at 0–100 mA continuousBias Output Voltage Range: 0 to -100 volts DC at 1 mAVariants54-77: Standard 110V\/117V AC domestic input variant.54-77-24 \/ 54X-77: Export or modified versions designed to support dual-voltage configurations (e.g., the IP-32E international models).\u003c\/p\u003e","brand":"HEATHKIT","offers":[{"title":"Default Title","offer_id":45780308557877,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0219\/7936\/5440\/files\/AP1GczPAkd8eh6uDy3JgV3M0vlpr6euyp6gU_8pIkMBRH5OuzYYbAgmUQrA2HJuQwNU6DdHYQIplgYdkwm-XacKB8Z_7qZweNNAlebOCIHaPM3ogO0y6vtZ9tIDXpUIb9B6mB9Zo6epMCUHOBWP6HWKZ8ZQqRA_w1886-h1886-s-no-gm.jpg?v=1784245033","url":"https:\/\/greenbrookonline.com\/products\/156021","provider":"Green Brook Online","version":"1.0","type":"link"}