All Wave Four

Country:  Great Britain (UK)
Manufacturer / Brand:  Eddystone, Birmingham
alternative name
Stratton & Co.Ltd.; Birmingham
Year: 1930 Category: Commercial Receiver (may include amateur bands)
Valves / Tubes 4: unknown_Tube HL210 HR210 PP2
Main principle TRF with regeneration
Wave bands Broadcast, Long Wave and Short Wave.
Power type and voltage Storage and/or dry batteries
Loudspeaker - For headphones or amp.
Power out
from Model: All Wave Four - Eddystone, Birmingham
Material Metal case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes Coverage 150 kHz - 24 MHz (2,5" vertical plug in coils: blue coil 13-26m, yellow 22-45m, red 40-85 m,green 250-500m), Igranic Indigraph dials, aerial tuning coupling condensor;
tropicalised diecast sectionalised aluminium case with hinged cover.
Eddystones' earliest "professional grade" model successfully used by British Arctic Air Route Expedition 1930.
Price in first year of sale 27.00 GBP
Mentioned in Quick Reference Guide, Eddystone User Group

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

All listed radios etc. from Eddystone, Birmingham
Here you find 235 models, 88 with images and 34 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.