• Country
• Japan

• Manufacturer / Brand
• Standard Radio Corp. (SR), Tokyo

• Year
• 1964 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 330957

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

• Number of Transistors
• 6

• Semiconductors
• 2SA15 2SA12 2SA12 2SB75 2SB77 2SB77 1N34A B-2B

• 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 / 4 x 1.5 Volt

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

• Power out
• 0.07 W (0.1 W max.)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Waltham * Standard Super Alarm - deluxe Transistor Watch Radio SR-4000 - Standard Radio Corp. SR, Tokyo

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

• Dimensions (WHD)
• 120 x 69 x 30 mm / 4.7 x 2.7 x 1.2 inch

• Notes

• Portable receiver with built-in Swiss-made clock.

  This device is identical to the Irish built Super Alarm SR-4000. A schematic is available there.

  Made in Japan.

• Net weight (2.2 lb = 1 kg)
• 0.330 kg / 0 lb 11.6 oz (0.727 lb)

• Price in first year of sale
• 148.00 DM

• Literature/Schematics (1)
• - - Manufacturers Literature

• Author
• Model page created by Heribert Jung. See "Data change" for further contributors.

• Other Models

• Here you find 258 models, 245 with images and 110 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Standard Radio Corp. (SR), Tokyo