• Year
  • 1964 ?
  • Category
  • Commercial Receiver (may include amateur bands)
  • Radiomuseum.org ID
  • 311410

 Technical Specifications

  • Number of Tubes
  • 5
  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 21400 kHz
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 905A - CEI - Communication
  • Shape
  • Rack
  • Dimensions (WHD)
  • 19 x 3.5 x 15.5 inch / 483 x 89 x 394 mm
  • Notes
  • VHF/UHF surveillance receiver covering 30-60 / 60-300 MHz in two bands; AM, FM, CW.
    IF bandwidths 20 kHz or 300 kHz, selectable by front-panel control.

    Sensitivity 20-kHz Bandwidth:
    AM: 1 mV input, modulated 50% at 1 kHz rate, produces 10 db (S+N)/N, minimum
    FM: 2 mV input modulated at 1 kHz rate with 7 kHz deviation, produces 21 db (S+N)/N min.

    Sensitivity 300-kHz Bandwidth:
    AM: 4 mV input, modulated 50% at 1 kHz rate, produces 10 db (S+N)/N, minimum
    FM: 4 mV input, mod. at 1 kHz rate with 100 kHz deviation, produces 21 db (S+N)/N, min.

    Manual Gain Control Range 100 db, minimum
    Video Output Level 5 volts, rms, across a 10K ohm unbalanced load
    Video Amplifier Response less than 3 db variation from 100 Hz to 60 kHz
    Audio Output Level  100 mW into a 600 ohm balanced or unbalanced load
    Audio Amplifier Response 100 Hz to 40 kHz at 3 db points
    FM Deviation Sensitivity  50 kHz deviation produces 5 volts, peak-to-peak,
    with maximum VIDEO GAIN

    Special feature: Carrier Operated Relay with a sensitivity of 1 mV  (Variant 905A-1)

  • Net weight (2.2 lb = 1 kg)
  • 18 lb (18 lb 0 oz) / 8.172 kg
  • Price in first year of sale
  • 2,025.00 USD
  • Mentioned in
  • - - Manufacturers Literature (CEI catalog 1968)
  • Author
  • Model page created by Franz Harder. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model 905A is part of the collections of the following members.

 Forum