• Country
• Great Britain (UK)

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

• Year
• 1969 ??

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 108852

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• RF Converter/Adapter (not voltage converter); ZF/IF 2500 kHz

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Powered by external power supply or a main unit. / 16 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: LF Converter RA-337 - Racal Engineering /

• Shape
• Rack

• Dimensions (WHD)
• 140 x 43 x 438 mm / 5.5 x 1.7 x 17.2 inch

• Notes
• VLF / longwave converter tunes frequencies from 3 - 980 kHz, out 2 - 3 MHz range fed into RA-217 / RA-1217 family receivers;
  RF attenuator and tuned preselector.

• Net weight (2.2 lb = 1 kg)
• 2.3 kg / 5 lb 1.1 oz (5.066 lb)

• Literature/Schematics (1)
• 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