• Country
• United States of America (USA)

• Manufacturer / Brand
• Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

• Year
• 1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 85707

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

• Number of Transistors
• 6

• Semiconductors
• 2SA52 2SA49 2SA53 2SB54 2SB56 2SB56

• 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 / N: 3 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2 inch = 5.1 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: X21W Ch= HS-876 - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 2.375 x 3.125 x 1 inch / 60 x 79 x 25 mm

• Notes
• The Motorola model X21W is a portable 6 transistor, 1 thermistor and 1 diode AM radio. AM Tuning Range: 532 to 1620 KHz. Color = White. Earphone jack is located on side of radio which disconnects the speaker for private listening.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 21, 1961

• Mentioned in
• Collector's Guide To TrR1 Bunis trans.94 (1996, page 170)

• Literature/Schematics (1)
• - - Manufacturers Literature (Motorola Service Manual, X21W, 1960)

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 544, Folder 10, October 1961)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 4508 models, 2955 with images and 4002 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)