Black Knight RP74

• Country
• Great Britain (UK)

• Manufacturer / Brand
• Hacker Radio Ltd., Maidenhead

• Year
• 1973

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 93144

• Picture
• Schematics

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

• Number of Transistors
• 14

• Semiconductors
• BF195 BF195 BC148 BF194 BF194 BF194 BF194 BC149 BC149 BC149 T2_tr BC159 AC187 AC188

• Main principle
• Superheterodyne (common); ZF/IF 10700 kHz

• Wave bands
• FM Broadcast Band Only

• Power type and voltage
• Batteries / addl. power jack / D: 8 x 1.5 / 12 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 7 inch = 17.8 cm

• Power out
• 2 W (max.)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Black Knight RP74 - Hacker Radio Ltd., Maidenhead

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 325 x 205 x 110 mm / 12.8 x 8.1 x 4.3 inch

• Notes

• Portable battery powered FM only transistor radio. Optional 12 volt PSU.

  FM coverage 87,5 - 101 MHz.
  Sockets: External FM Aerial, Tape recorder (DIN), 12V PSU, earphone socket.
  Similar in appearance to RP74MB
  Loudspeaker is 7 x 5 inches

• Net weight (2.2 lb = 1 kg)
• 3.275 kg / 7 lb 3.4 oz (7.214 lb)

• Literature/Schematics (1)
• - - Data from my own collection

• Literature/Schematics (2)
• - - Manufacturers Literature (Hacker Service Manual for the RP72 Sovereign III and RP74 Black Knight July 1973)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 56 models, 56 with images and 23 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hacker Radio Ltd., Maidenhead