ADP2 Osram Valves
- Great Britain (UK)
- Manufacturer / Brand
- Amplion, Alfred Graham & Co. (Algraphone); London
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- Main principle
- Superheterodyne (common); ZF/IF 465 kHz; 1 AF stage(s)
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries / 1,4 & 90 Volt
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Leather / canvas / plastic - over other material
- from Radiomuseum.org
- Model: ADP2 [Osram Valves] - Amplion, Alfred Graham & Co.
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 368 x 260 x 191 mm / 14.5 x 10.2 x 7.5 inch
The Osram valve equivalents are 1A7 1N5 1H5 1C5. Only the N14 (1C5) is different to that used in the standard model ADP2. The bias resistor is also different for the N14 (820R instead of 560R). Frame aerial consists of a MW winding plus a loading coil for LW. Almost identical chassis as in the predecessor ADP1 but in different case. The documentation "Trader Sheet" 883 covers both models.
- Mentioned in
- Funktechnik 1949, Heft Nr.21
- Literature/Schematics (1)
- Paul Stenning CD vol 1. Trader sheet 883.
- Model page created by Thomas Günzel. See "Data change" for further contributors.
- Other Models
Here you find 86 models, 64 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Amplion, Alfred Graham & Co. (Algraphone); London