Integrated Stereo Amplifier 221
Armstrong Audio / Wireless & Television / Manufacturing; London
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Armstrong Audio / Wireless & Television / Manufacturing; London
- Year
- 1965 ?
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 136257
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Number of Transistors
- 4
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC) / 200-250 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 10 W (unknown quality)
- from Radiomuseum.org
- Model: Integrated Stereo Amplifier 221 - Armstrong Audio / Wireless &
- Shape
- Book-shelf unit.
- Notes
- Stereo audio amplifier supplied as a chassis with optional book-shelf case, or could be fitted to custom case. Transistor pre-amp for magnetic cartridge input. All other stages are valve. Model 222 has no magnetic input, or transistors. A dual voltage version for 100-130V mains was also produced.
- Source of data
- -- Original-techn. papers.
- Literature/Schematics (1)
- Paul Stennings CD, vol 3.
- Author
- Model page created by Keith Staines. See "Data change" for further contributors.
- Other Models
-
Here you find 25 models, 23 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Armstrong Audio / Wireless & Television / Manufacturing; London