• Year
  • 1965–1968
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 225922

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 2x 7.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Sprite JA-1H Ch= JA - His Master's Voice HMV, H.M.V.
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 9.5 x 4.75 x 3.5 inch / 241 x 121 x 89 mm
  • Notes
  • This portable from HMV Homebush NSW uses a 47 Ohm, 4 inch circular speaker. The battery supply was from a dual 7.5 Volt battery (Eveready 2510) to provide 15 Volts with the chassis positive. The circuit is indicated on the inside of the radio as JA-1H and that specifies a 48 Ohm speaker. The two OA90 diodes are the detector and for the AGC.

    Tuning is via a "Handspan" direct drive dial, 86 mm in diameter. All 6 Australian states are covered on the dial with the frequency (530 - 1750* kHz) indicated only in small print, numbers 6 to 17 on the outer edge of the upper half of the dial. The Volume Control, which incorporates the On/Off switch, has a red segment visible when power is available to the set. The set is obviously for local use with only 6 transistors and a 140 mm Ferrite Rod Antenna with no provision for an external antenna or earth. Height including handle is 6". Price & weight include battery.

    Colours available in Apache Red, Citrus & Mexican Tan.
    Price after the introduction of decimal currency (14/2/1966) was $39.90

  • Net weight (2.2 lb = 1 kg)
  • 3 lb 0 oz (3 lb) / 1.362 kg
  • Price in first year of sale
  • 19.95 AUS £
  • Literature/Schematics (1)
  • - - Manufacturers Literature (HMV Service Manual for Chassis Type JA.)
  • Author
  • Model page created by Brian Wilson. See "Data change" for further contributors.

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