BC4E Ch= HS-4135

• Country
• United States of America (USA)

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

• Year
• 1964 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 222779

• Picture
• Schematics

Previous Next

Previous Next

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

• Number of Tubes
• 7

• Valves / Tubes
• 17EW8 or HCC85 12BA6 12BA6 12AU6 12BE6 12AV6 35C5

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)     7 FM circuit(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 60 cycle, 110 to 120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: BC4E Ch= HS-4135 - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Tablemodel with Clock ((Alarm-) Clock Radio).

• Notes

• The Motorola BC4E is an AC operated 7 tube AM/FM clock radio. AM Tuning Range: 535 to 1620 kHz. FM Tuning range: 88 to 108MHz.  Has Qty(1) PM 5" speaker. Has built-in ferrite antenna for AM and a 36" wire for the FM antenna. Uses silicon diode for rectifier in power supply.  Cabinet color is black. Has automatic radio turn-on feature and delayed radio shut-off feature.

  Clock has "Visilite" feature, which consists of two clock faces, one which is seen in daylight, the other seen at night.  Located in the center area of the dial face is a translucent ring which has opaque numerals super-imposed on its back side.  Located behind this center area is a plastic disc which is edge lit by a neon lamp.  The ring and numerals cannot be seen in daylight.  At night, however, the neon-lit plastic disc causes the translucent ring to glow softly and since the clock numerals and hands are silhoutted against it, the time is clearly visible.

  The following models use the same schematic and cabinet but have different cabinet colors:

  Model Number	Cabinet Back Color	Cabinet Front Color
  BC4E	Black	Black
  BC4S	Brown	Brown
  BC4W	White	White

   

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 25, 1965

• Mentioned in
• Photofact Folder, Howard W. SAMS (Set 733, Folder 9)

• Literature/Schematics (1)
• - - Manufacturers Literature (Motorola Datasheet 68P60084A25 Dated 4-64)

• Literature/Schematics (2)
• Beitman Radio Diagrams, Vol. 25, 1965 (Pages 66, 67, 68)

• Author
• Model page created by Jose Casas-Avalos. See "Data change" for further contributors.

• Other Models

• Here you find 4646 models, 2969 with images and 4145 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)