Improved Shielded Laboratory Receiver SG440 (440 SG)
Silver - Marshall; Chicago, IL
- Country
- United States of America (USA)
- Manufacturer / Brand
- Silver - Marshall; Chicago, IL
- Year
- 1927
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 223901
- Number of Tubes
- 8
- Main principle
- Superheterodyne (common); Screengrid 1926-1935
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case
- from Radiomuseum.org
- Model: Improved Shielded Laboratory Receiver SG440 - Silver - Marshall; Chicago, IL
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
-
Featuring the SG440 time signal amplifier whose layout includes 3 screen grid tetrodes type 22 and a triode detector 00A. It is NOT the conventional 01A based MF amplifier. Wave change by different plug-in coils (Antenna and Oscillator coil).
- Author
- Model page created by Luca Posca. See "Data change" for further contributors.
- Other Models
-
Here you find 225 models, 116 with images and 122 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Silver - Marshall; Chicago, IL
Collections
The model Improved Shielded Laboratory Receiver is part of the collections of the following members.