• Country
• Great Britain (UK)

• Manufacturer / Brand
• Hacker Radio Ltd., Maidenhead

• Year
• 1972

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 97632

• Number of Transistors
• 15

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 470/10700 kHz

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Dry Batteries / 2 × 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 8 inch = 20.3 cm

• Power out
• 1.5 W (unknown quality)

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

• from Radiomuseum.org
• Model: Sovereign II RP25B - Hacker Radio Ltd., Maidenhead

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

• Dimensions (WHD)
• 12.75 x 10 x 4.75 inch / 324 x 254 x 121 mm

• Notes
• Transistors: 3× BC148, unknown, 2× AC128, AC176, 3× BF194, BF194B, BF195C, BF195D, 2× BF195; IC: TAA920. Sockets: External AM/FM aerial, three 3.5 mm jack sockets for tape recorder, audio input and earphone, socket for 18 V PSU.

• Net weight (2.2 lb = 1 kg)
• 3 kg / 6 lb 9.7 oz (6.608 lb)

• Literature/Schematics (1)
• -- Original-techn. papers.

• 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