• Country
• United States of America (USA)

• Manufacturer / Brand
• Bell Products Corp.; St. Louis, MO

• Year
• 1961 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 224089

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

• Number of Transistors
• 2

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Tape Recorder

• Power type and voltage
• Dry Batteries / 9 & D: 2 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.25 inch = 5.7 cm

• Power out
• 0.1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Futura 400 - Bell Products Corp.; St. Louis

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

• Dimensions (WHD)
• 9.5 x 3 x 8 inch / 241 x 76 x 203 mm

• Notes

• Monophonic recorder and player. Standard 1/4 inch tape in 3 inch reels. Crystal microphone plugs into 1/8 inch jack. No bias oscillator. Permanent magnet erases during record. Single track records across entire width of tape. No gain adjust for record or playback. No capstan so nominal 3 3/4 inch-per-second tape speed varies during recording. Single motor drives play/record and rewind. No fast forward. Although the audio quality is primitive it was a great first tape recorder for the budding 11 year old audio enthusiast of 1961.

   

   

• Net weight (2.2 lb = 1 kg)
• 1.9 lb (1 lb 14.4 oz) / 0.863 kg

• Price in first year of sale
• 29.95 USD

• Mentioned in
• Popular Electronics December 1961 Page 56

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 613, Folder 10, January 1963)

• Author
• Model page created by Gary Brandenburger. See "Data change" for further contributors.

• Other Models

• Here you find 11 models, 11 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bell Products Corp.; St. Louis, MO