• País
• Estados Unidos

• Fabricante / Marca
• Lear Inc.; Grand Rapids and Los Angeles

• Año
• 1947

• Categoría
• Receptor profesional (puede incluir bandas de aficionados)

• Radiomuseum.org ID
• 46143

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

• Numero de valvulas
• 7

• Válvulas
• 1N5GT 1A7GT 1N5GT 1H5GT 1A5GT 50B5 35W4

• Principio principal
• Superheterodino con paso previo de RF; ZF/IF 455 kHz; 2 Etapas de AF

• Número de circuitos sintonía
• 7 Circuíto(s) AM

• Gama de ondas
• OM, OL y OC

• Tensión de funcionamiento
• Red / Baterías o pilas / AC/DC 105-125 / 7.5 & 90 Volt

• Altavoz
• Altavoz dinámico (de imán permanente)

• Material
• Cuero/Tela/ Plástico sobre otros materiales

• de Radiomuseum.org
• Modelo: Learavian - Beacon, Broadcast and Airline Receiver RM-402C - Lear Inc.; Grand Rapids and

• Forma
• Portátil > 20 cm (sin la necesidad de una red)

• Anotaciones

• Advertised as "The Pilot's Preference", the Learavian RM-402C receiver had both a general coverage long wave band from 195 to 410 kHz for Airways aural navigation ranges and beacons and a shortwave band from 2.2 to 6.2 MHz for monitoring pilot - tower communications.  The receiver also covered the broadcast band from 540 to 1500 kHz.  The self-contained radio was primarily designed for the private pilot who may have been flying an airplane with no or minimal electrical systems. It included a microphone input allowing for intercom use in the cockpit. The loop antenna was self-contained. A coaxial RCA phono-type jack was included for use with an external antenna.  The weight with batteries was advertised as "14 pounds three ounces". The outer covering of the wood box was luggage canvas advertised as available in either beige tweed or wine color. The power cord contains a third resistance wire of 200 ohms for dropping the filament voltage to 85 for the 35W4 and 50B5 tubes when operating from 115 volts AC-DC.

• Peso neto
• 14 lb 3 oz (14.188 lb) / 6.441 kg

• Precio durante el primer año
• 75.00 USD

• Ext. procedencia de los datos
• Ernst Erb

• Procedencia de los datos
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Referencia esquema
• Rider's Perpetual, Volume 22, covering 1951

• Mencionado en
• -- Original prospect or advert (Aviation Week ad p.22 April 1947)

• Documentación / Esquemas (1)
• -- Original-techn. papers. ("‘The Pilot’s Preference’ Learavian RM-402C Receiver", The Spectrum Monitor - R Post, 2-2024)

• Documentación / Esquemas (4)
• Photofact Folder, Howard W. SAMS (Set 42, Date 7/48, Folder 4812-15)

• Otros modelos

• Donde encontrará 46 modelos, 27 con imágenes y 40 con esquemas.
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