4 Band Transistor 9 BZL-490

• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1961–1963

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 212269

• • alternative name: Hayakawa Electric Co.Ltd.

• Picture
• Schematics

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

• Number of Transistors
• 9

• Semiconductors
• 2SA82 2SA80 2SA12 2SA12 2SB74 2SB75 2SB75 2SB77 2SB77 1N34A

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Power type and voltage
• Batteries / addl. power jack / AA: 4 x 1.5 / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.6 inch = 6.6 cm

• Power out
• 0.15 W (undistorted)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 4 Band Transistor 9 BZL-490 - Sharp; Osaka

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 7.5 x 4.25 x 1.125 inch / 191 x 108 x 29 mm

• Notes

• Sharp Model BZL490

  A nine transistor, four band superheterodyne portable radio with automatic gain control.

  Tuning range: B/C 535~1605 kC/s (kHz), S/W1 1.6~4.3 MC/s (MHz), S/W2 3.9~12 MC/s (MHz), L/W 150~400 kC/s (kHz).

  Powered by Eveready Type 915 (AA) batteries. Power output 150 mW. Speaker 2.6" PM Dynamic (voice coil impedance 10 ohms)

  Accessories: leather case earphone. (MINGAY'S PRICE SERVICE)

  See also version without long-wave, Model BZ-490.

• Price in first year of sale
• 51.45 AUS £

• Mentioned in
• Mingay's Price Service (Aug 1961 to Feb 1963.)

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 1338 models, 1209 with images and 517 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sharp; Osaka