• Country
• Great Britain (UK)

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

• Year
• 1960 ??

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 106293

• Main principle
• Superhet, double/triple conversion; ZF/IF 40000/2500 kHz

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: Frequency Measuring Receiver RA-78 - Racal Engineering /

• Shape
• Rack

• Notes
• Frequency measuring System used for ascertain the exact transmitting frequency of commercial transmitters and for scientific purposes.
  System consists of RA-17 receiver, SA-535C digital (nixie tubes) frequency display, SA-77 Frequency Comparator (stabilisation), SA-538B Serialiser and ADDO-X/44E Printing System.
  Frequency measurement accuracy 2 Hz, with optional MA-259 Frequency Standard improved accuracy < 1 Hz.
  Variants: RA-78G European model, RA-78J European version with RA-137 LF Converter;
  RA-78H American model, RA-78K American version with RA-137 LF Converter.

• 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