• Anno
  • 1943 ?
  • Categoria
  • Parte di radio (ma non modulo a sè stante)
  • Radiomuseum.org ID
  • 177437

 Specifiche tecniche

  • Gamme d'onda
  • - senza
  • Tensioni di funzionamento
  • Alimentazione non richiesta
  • Altoparlante
  • - - Nessuna uscita audio.
  • Materiali
  • Vari materiali
  • Radiomuseum.org
  • Modello: Crystal FT-241 - MILITARY U.S. different makers
  • Forma
  • Diverse forme (descritte nelle note).
  • Dimensioni (LxAxP)
  • 29 x 39 x 12 mm / 1.1 x 1.5 x 0.5 inch
  • Annotazioni
  • FT-241 crystals, black series, were used in the BC-604 with a working frequency 20 - 27.9 MHz, 80 "channels" numbered 0 - 79. Their fundamental frequency is 370.370 - 516.666 kHz, to be multiplied by 54.

    FT-241 crystals, brown series, were used in the BC-684 with a working frequency 27 - 38.9 MHz, 120 "channels" numbered 270 - 389. Their fundamental frequency is 375.000 - 540.277 kHz, to be multiplied by 72.

    This crystal type is far not as indestructible as the FT-243 type. The small silvered crystal-plate is welded-connected with two spring-type wires, but these connections are often broken after many years.

    These crystals have a very interesting fundamental frequency range to compose sharp IF- filters around 450 - 475 kHz.

  • Peso netto
  • 0.010 kg / 0 lb 0.4 oz (0.022 lb)
  • Autore
  • Modello inviato da Jan Terranea. Utilizzare "Proponi modifica" per inviare ulteriori dati.

 Collezioni | Musei | Letteratura

Collezioni

Il modello Crystal (Quartz) fa parte delle collezioni dei seguenti membri.

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