• Country
• United States of America (USA)

• Manufacturer / Brand
• Master-Craft Electronics Corp.; New York, NY

• Year
• 1965 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 299980

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

• Number of Transistors
• 16

• Semiconductors

• 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
• 1 x 9 Volt

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

• Power out
• 0.1 W (0.16 W max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 16 Transistor HK600 - Master-Craft Electronics Corp.

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

• Dimensions (WHD)
• 109 x 66 x 32 mm / 4.3 x 2.6 x 1.3 inch

• Notes

• Master-Craft Model HK600. AM only.  

  The schematic clearly shows a typical 6 transistor superheterodyne with 10 additional  transistors: 4 of them make a bridge which could be replaced by a single diode and the other 6, in the bottom of the AF section, appear to have no purpose.

  Someone calls it "The transistor war" and it resembles "The tube count scandal".

  Made in Hong Kong

   

• Mentioned in
• Antique Radio Magazine - Italy, Club Antique Radio Magazine (n.57, page 53, October 2003)

• Author
• Model page created by Ray Albright. See "Data change" for further contributors.

• Other Models

• Here you find 20 models, 16 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Master-Craft Electronics Corp.; New York, NY