1931. EMG were a thriving company under the Davey brothers. Balfour Davey concentrated on the acoustic range of gramophones, the Davey Mark series. Francis Davey, the wireless expert from the Royal Signals, took charge of the electrical and radio range of EMG gramophones and designed the Davey Reproducer Series, advertised as the DR series.
Two variations of the DR1 were launched in 1931. DR1 Radio Set at £25 and the DR1 Radio Gramophone at £42.
Speakers were offered from the plain Baffles, £2.15.0 to the hand-made cabinet loudspeaker at £12.15.0.
The last reviewed EMG amplifier was in 1956 (E.M.G. Control Unit DCUI and Amplifier D.R.24, 12 watts. Price complete £45.). Francis Davey shifted focus and started to spend a lot more of his time on his "Micro-wave Intruder Alarm", which briefly was installed at Buckingham Palace.
The DR series somehow ran, at least, to the documented DR38, which was still being upgraded and maintained by EMG until 1975. The last advertised DR series was the DR35S of 1963, a Stereo radiogram plus VHF/FM radio selling at: £244.12.6. inc P.Tax. £39.10.0 each speaker.
E.M.G continued to service and maintain their radiograms and also to make, off-the-shelf equipment into the 1970's, but nothing compared to the genius of the DR series.