25-06-2023, 03:17 PM
Won't be Decca. They used the Mazda types and then changed to regular octal. Never used Edge on 1.4V battery sets.
Typical Decca of 1939-1941 with Mazda or more common Octal
https://www.radiomuseum.org/r/decca_2_mld3.html
4: 1A7G or FC141 1N5G or SP141 1H5G or H141D 1C5G or Pen141
Most just used the Sylvania type Octal, or Brimar version of them.
The 2V sets tend to be mix of B5 & B7 base rather than Edge, then from 1940s the Octal.
Typical Decca of 1939-1941 with Mazda or more common Octal
https://www.radiomuseum.org/r/decca_2_mld3.html
4: 1A7G or FC141 1N5G or SP141 1H5G or H141D 1C5G or Pen141
Most just used the Sylvania type Octal, or Brimar version of them.
The 2V sets tend to be mix of B5 & B7 base rather than Edge, then from 1940s the Octal.
