"All Electric" superheterodyne receiver for direct current (DC) mains

With a split circular dial surrounding the speaker and an anodised copper "Willow Tree" design grille, double pointer, in architectural mahogany coloured Bakelite case in the Art Deco "Odeon-front" style, with sloped stepped fringe and out-swept sides with carry pockets (the radio is quite heavy: 17,7 lb), twin knob and switch control to the front. An early example of a mass-produced mains table wireless.

Above: an accurate model of the SH25 as a novelty radio. It has medium wave and FM and it uses two penlight batteries.
The dimensions are 11 x 10.4 x 4.8 cm. This model was made in China.
This is the DC mains version with five series tubes. Two wave bands: medium wave (200-550 meters) and long wave (1000-2000 meters). It is Ekco's first superhet.
The design is by J.K. White. The earlier Ekco RS3 (1931) is of similar design. The SH25 has a double travelling cursor; the RS3 only has one cursor and was the first set to have the stations marked on the dial.
The original price was 24 Guineas.
Data Valves
Serial number: SC33510
Chassis number: 005888
Dimensions (whd): 44 45.5 25 cm
Made in: 1932
Purchased in: 2010
Voltages: 200-210, 220-230 and 240-250 volts DC
Click on a valve for more information
Circuit, Article (AC version)

What was broadcast in 1932?

 

Listen "Everyone Says 'I Love You'" by the orchestra of Henry Hall, vocals by Les Allen, recorded December 20, 1932.

Back panel
Back

                      Chassis
Advertisement in Practical Wireless, October 22, 1932

This page was last edited on 12.10.2020