radiomuseum.org

143-A

143-A ; Western Electric (ID = 1571604) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571607) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571609) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571612) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571617) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571618) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571619) Ampl/Mixer
 
143-A ; Western Electric (ID = 1571620) Ampl/Mixer
143-A ; Western Electric (ID = 1570587) Ampl/Mixer 143-A ; Western Electric (ID = 1570588) Ampl/Mixer
Altre immagini: scorri con la barra rossa.
143-A ; Western Electric (ID = 1570587) Ampl/Mixer
Western Electric: 143-A [Ampl/Mixer] ID = 1570587 600x796
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For model 143-A, Western Electric Company Inc.; New York (NY)
 
Paese:  USA (Stati Uniti d'America)
Produttore / Marca:  Western Electric Company Inc.; New York (NY)
Anno: 1950 ? Categoria: Amplificatore audio o mixer audio
Valvole 10: 6SN7 6SN7 6SN7 350B 350B 350B 350B 6SN7 5R4GY 5R4GY 0C3 or VR105
Principio generale Amplificatore audio
Gamme d'onda - senza
Particolarità
Tensioni di funzionamento Alimentazione a corrente alternata (CA) / 105 - 125 Volt
Altoparlante - Questo apparecchio richiede altoparlante/i esterno/i.
Potenza d'uscita 75 W (max.)
Radiomuseum.org Modello: 143-A - Western Electric Company Inc.;
Materiali Mobile di metallo
Forma Chassis o in scatola da montaggio
Dimensioni (LxAxP) 12.25 x 8.5 x 19 inch / 311 x 216 x 483 mm
Annotazioni

The Western Electric 143A Amplifier is a high quality, medium gain power amplifier intended as a basic amplifier for public adress sound distribution systems and wired program service. It has two high impedance input connections controlled by a master volume control; and the chassis has provisions for addition of pre-amplifiers and apparatus units for various input combinations.

Typical characteristics:

  • Frequency response: +/- 1 dB 50 to 15,000 cycles
  • Output noise: -30 dBm
  • Harmonic distortion: See Output Power
  • Source impedance: 0 to 250,000 ohms
  • Load impedance: 1.5 to 170 ohms
  • Loadspeaker line: 70 volts
  • Gain: 52 dB from 600 ohm source
  • Gain control: continuously variable
  • Output power: 75 watts as supplied with Western Electric 350B tubes in the output stage, with less than 5% distortion over the range of 50 to 7,500 cycles. 50 watts, 5% distortion, 50 to 7,500 cycles when reconnected for 6L6 Tubes in the output stage.
  • Power supply: 105 to 125 volts, 60 cycles. 335 watts maximum (3 amperes). Fused with thermal cut out fuse.
  • Mounting: Either surface or rack mounting
  • Finish: Light gray
Peso netto 46 lb (46 lb 0 oz) / 20.884 kg
Bibliografia -- Original-techn. papers.

Modello inviato da Tall Wilson. Utilizzare "Proponi modifica" per inviare ulteriori dati.



Elenco delle radio e altri apparecchi della Western Electric Company Inc.; New York (NY)
In questo link sono elencati 153 modelli, di cui 128 con immagini e 28 con schemi.




  
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