SCR-211-Q Frequency Meter Set (BC-221-Q)

• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• Cardwell Mfg. Corp., The Allen D.: Brooklyn, NY

• Anno
• 1942

• Categoria
• Strumento da laboratorio

• Radiomuseum.org ID
• 142694

• Immagini
• Schemi

Previous Next

Previous Next

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di tubi
• 3

• Valvole
• VT-167 VT-116 VT-116

• Gamme d'onda
• Gamme d'onda nelle note.

• Tensioni di funzionamento
• Batterie a secco / 135/6 Volt

• Altoparlante
• - solo per cuffie o auricolari

• Materiali
• Vari materiali

• Radiomuseum.org
• Modello: SCR-211-Q Frequency Meter Set - Cardwell Mfg. Corp., The Allen

• Forma
• Apparecchio portatile > 20 cm (senza la necessità di una rete)

• Dimensioni (LxAxP)
• 10 x 13.7 x 9.25 inch / 254 x 348 x 235 mm

• Annotazioni
• Precision heterodyne frequency meter designed to measure or radiate radio-frequency impulses between 125 kHz and 20 MHz. Portable, self-contained, used mainly to calibrate field radio receivers and transmitters by direct comparison with the crystal-calibrated variable frequency oscillator of the instrument. Frequency readings provided by a calibration book. Contained 1 MHz crystal oscillator and variable frequency oscillator operating in two switched ranges: 125 to 250 kHz and 2 to 4 MHz. The 2nd, 4th and 8th harmonics of the low-frequency range were used to cover 250 kHz to 2 MHz, while the 2nd, 4th and 5th harmonics of the high-frequency range were used to cover 4 MHz to 20 MHz. Supplied mostly with wooden cabinet, yet some BC-221-Q would come with aluminum-alloy metal cabinet. Dimensions and Weight are shown for a metal cabinet model. Required six BA-2 batteries (22.5V each), four BA-23 batteries (1.5V each) and P-18 or P-20 headset. HS-30 headset may also be used. Minor circuit differences with model BC-221-B.

• Peso netto
• 38 lb (38 lb 0 oz) / 17.252 kg

• Fonte dei dati
• -- Original-techn. papers.

• Letteratura / Schemi (1)
• TM 11-300 (20 July 1944)

• Autore
• Modello inviato da Emilio Ciardiello. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 21 modelli, di cui 20 con immagini e 5 con schemi.
  Elenco delle radio e altri apparecchi della Cardwell Mfg. Corp., The Allen D.: Brooklyn, NY