• Country
• Japan

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

• Year
• 1990 ??

• Category
• Commercial Transmitter & Receiver (TRX not Amateur)

• Radiomuseum.org ID
• 218101

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 21400/455 kHz; 1 AF stage(s)

• Tuned circuits
• 7 FM circuit(s)

• Wave bands
• VHF incl. FM and/or UHF (see notes for details)

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch

• Power out
• 2.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: VHF/FM Repeater/Base Station, 25 Watt RP70V - Standard Radio Corp. SR, Tokyo

• Shape
• Rack

• Dimensions (WHD)
• 482 x 132 x 349 mm / 19 x 5.2 x 13.7 inch

• Notes
• 4 Channels, crystal. 25 W RF out. F1= 138-150, F3= 150-162, F5= 162-174 MHz bands. Can include internal duplexer. Up to 2 CTCSS.

• Net weight (2.2 lb = 1 kg)
• 10.5 kg / 23 lb 2 oz (23.128 lb)

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Alberto Sanna-Alonso. See "Data change" for further contributors.

• Other Models

• Here you find 256 models, 243 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