• Country
• Great Britain (UK)

• Manufacturer / Brand
• Racal Engineering / Instruments / Electronics Ltd., Bracknell

• Year
• 1965 ??

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 106623

• Number of Tubes
• 4

• Valves / Tubes
• 6AS6 6AU6 6AU6 6X4

• Main principle
• RF Converter/Adapter (not voltage converter); ZF/IF 100/14 kHz

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 100-125; 200-250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Frequency Converter RA-70 - Racal Engineering /

• Shape
• Rack

• Notes
• Frequency Converter: converts 100 kHz IF of RA-17 / RA-117 receivers to 14 kHz used by Plessey PV-78 RTTY converter / keyer.
  Variant: earlier RA-70A provides a fine tuning possibility with a dial,
  later RA-70 came only with red power on / pilot light.
  The RA-70 is used in RA-103 and RA-129 systems.

• Mentioned in
• Racal Handbook, Rinus Jansen

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 113 models, 62 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Racal Engineering / Instruments / Electronics Ltd., Bracknell