- Country
- Great Britain (UK)
- Manufacturer / Brand
- Portadyne, (Brand), Dynaport Radio & Television Co. Ltd. (Whittingham Smith, Kew); London
- Year
- 1934 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 235439
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 3
- Main principle
- TRF with regeneration
- Tuned circuits
- 2 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries / 2 & 120 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
- Material
- Wooden case
- from Radiomuseum.org
- Model: B3 - Portadyne, Brand, Dynaport
- Shape
- Tablemodel, with any shape - general.
- Notes
-
May require HT dry cell with integral Grid bias or a Grid Bias battery.
Similar circuit to an Ultra 77 which requires a tapped 9V grid battery and a 120V battery with taps according to Trader 109.
- Author
- Model page created by Gerry Howe. See "Data change" for further contributors.
- Other Models
-
Here you find 74 models, 29 with images and 40 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Portadyne, (Brand), Dynaport Radio & Television Co. Ltd. (Whittingham Smith, Kew); London