It's 2008 and the world is full of amazing electronic gadgets. The dreams, and of course the science, behind these modern technologies are often surprisingly ancient.
Contents
- Sources for Wireless components
- Reference data
- Early Hi Fi - The "Quality Amplifiers", "Williamson"...
- Sound Sales
1938 ECKO RG 489 wireless chassis
Bought, in 2008, for one pound from the local recycling centre. The valves are, Mullard 354V, Mullard TH4A, Mullard TV4 (tuning indicator), Mullard TDD4, Mullard VP4B, Mullard 2D4B, Mullard PEN A4, Cossor 43-IU (rectifier). Information on these, and other 1938 Mullard valves can be found in the Catalogue of Mullard Master Valves 1937-8. Pictures of these, and most other, valve types can be found at The National Valve Museum.
There are sockets on the rear for TV sound from a sound only TV set such as the Ekco TA201.
(I identified the set as a RG489/PB289 from the layout here and there is other information here - such as the IF, 126 kHz)