• Country
• Great Britain (UK)

• Manufacturer / Brand
• Eddystone (Brand), Stratton and Co., Ltd., Eddystone Radio Ltd.; Birmingham

• Year
• 1963–1968

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 113111

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

• Number of Tubes
• 19

• Valves / Tubes
• 6AK5 6AK5 6AK5 6BA6 6BA6 6BA6 6BA6 6AU5 6AL5 6AL5 6AU6 6BA6 6AU6 12AU7 12AU7 6AM5 6AM5 6AM6 5Z4G

• Main principle
• Superhet with RF-stage; ZF/IF 5200 kHz; 3 AF stage(s)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110; 200; 230 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 3 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: VHF Communications Receiver 770R/MkII [Mark II] - Eddystone Brand, Stratton and

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 425 x 222 x 346 mm / 16.7 x 8.7 x 13.6 inch

• Notes
• VHF Communications receiver, covers 19 - 165 MHz in 6 bands (19-27 MHz, 26-39 MHz, 37-55 MHz, 54-78 MHz, 75-114 MHz, 110-165 MHz), AM, CW, FM, NBFM. 19 Tubes and VR150-30 voltage stabiliser, two GEX13 diodes used in muting (squelch) circuit. Further GEX13 used in AM detector. Similar to 770R but with new cabinet, integrated crytsal calibrator, improved linear dial. 12 variants with minor differences, designation 770RMkII/RM for 19" rack mount. Matching EP17R panoramic display unit. Matching plinth speaker.

• Net weight (2.2 lb = 1 kg)
• 27.4 kg / 60 lb 5.6 oz (60.352 lb)

• Source of data
• - - Manufacturers Literature

• Mentioned in
• Eddystone User Group: Quick Reference Guide

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 255 models, 125 with images and 46 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Eddystone (Brand), Stratton and Co., Ltd., Eddystone Radio Ltd.; Birmingham