• Año
  • 1941
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 171601
    • Brand: Te-Lek-Tor-Et

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

 Especificaciones técnicas

  • Numero de valvulas
  • 14
  • Principio principal
  • Superheterodino con paso previo de RF; ZF/IF 455/4300 kHz; 3 Etapas de AF
  • Número de circuitos sintonía
  • 7 Circuíto(s) AM     11 Circuíto(s) FM
  • Gama de ondas
  • OM, OC y FM
  • Tensión de funcionamiento
  • Red: Corriente alterna (CA, Inglés = AC) / 105-125 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo) / Ø 12 inch = 30.5 cm
  • Potencia de salida
  • 10 W (unknown quality)
  • Material
  • Madera
  • de Radiomuseum.org
  • Modelo: 925-L - Stromberg-Carlson Co. ;
  • Forma
  • Consola en general
  • Ancho, altura, profundidad
  • 31.125 x 38.875 x 13.1875 inch / 791 x 987 x 335 mm
  • Anotaciones
  • BC (540-1600 kHz), SW (8.8-12.0 MHz bandspread) and FM (42.0-50.0 MHz) bands. Six station buttons, tuning eye, push-pull audio amplifier. For 50 to 60 Hz AC.

    FM tuning range is from 21-99 on the dial.  These values are FM station numbers, similar in concept to TV station numbering.  The FM station assignments 21-99 correspond to frequencies from 42.1 to 49.9 MHz.

    After restoration, tested amp performance with HP8903B analyzer. Lowest THD was 0.94% at 1kHz.  This occurred at about 750mW output.  The maximum setting on the volume control produced 9.6W, and the corresponding THD was approximately 10%.

    Chassis has an external "bass resonator" that creates a broad peak in the frequency response, measured +7.5dB @ 100Hz.  

    Bass and Treble controls interact, and pre-date the Baxandall design.  Treble control action set to max produces +2dB peak at 5kHz; at minimum it produces a steady roll-off above 1kHz; down 7.9dB at 8kHz.  Bass control set to max produces +8.7dB peak at 100Hz and when set to min produces +2.4dB at 100Hz.  

    The radio sounds very rich and warm.

  • Referencia esquema
  • Rider's Perpetual, Volume 13 = 1942 and before
  • Mencionado en
  • Rider's 13-11 to 13-16
  • Documentación / Esquemas (3)
  • Stromberg-Carlson Cir. #1043, Season 1941

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El modelo 925-L es parte de las colecciones de los siguientes miembros.

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