• Country
• United States of America (USA)

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: USA

• Year
• 1975 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 136320

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TV Tuner Subber IV - Unknown - CUSTOM BUILT: USA

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

• Notes
• TV Tuner Subber IV (4);
  Portable US standard VHF turret test tuner with terminals for antenna-in, UHF tuner test, IF out.
  Manual RF gain adjuster, carrying handle, yellow cabinet.
  Probably made by "Castle Television Tuner Service Inc."

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

• Other Models

• Here you find 265 models, 220 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: USA