• Country
• Great Britain (UK)

• Manufacturer / Brand
• Mullard Equipment Ltd., MEL Equipment Co Ltd; London

• Year
• 1976–1985

• Category
• Antenna (Aerial) or Coupler

• Radiomuseum.org ID
• 275687

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

• Main principle
• RF-Circuit or wave trap (separate, can also be an antenna with amp.)

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Clansman Antenna Tuner Tuner Unit RF25-W - Mullard Equipment Ltd., MEL

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 216 x 141 x 281 mm / 8.5 x 5.6 x 11.1 inch

• Notes

• Military Antenna matching unit Clansman VRC-321
  Frequency range 1.5 to 29.99 MHz

  This is part of the HF radio station UK/VRC-321 comprising transmitter/receiver RT-321, Preselector/Bandpass Filter SURF-25W and this tuner. It matches dipoles, rod antennas of 3 or 4 metres, and end fed wires although the wires need to be slightly shorter than 1/4 wave or 3/4 wave (slightly inductive load). Power rating is 25W for constant power modes (RTTY) or 45W CW and SSB. It can be used with any HF transceiver at these power levels but the reverse power meter is only useful with the RT-321 (the SWR bridge is in the radio and the DC current for the meter is fed via the coax). 

   

  (Antennenanpaß-Gerät zu Clansman VRC-321
  Schwere, robuste Militärausführung. Frequenzbereich 1,5-29,99 MHz)

• Author
• Model page created by Rudolf Müller. See "Data change" for further contributors.

• Other Models

• Here you find 5 models, 5 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mullard Equipment Ltd., MEL Equipment Co Ltd; London