Acratest Preamplifier 247
- United States of America (USA)
- Manufacturer / Brand
- Federated Purchaser, Inc. (Acratone, Acratest); New York City (NY)
- Audio Amplifier or -mixer
- Radiomuseum.org ID
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- Main principle
- Power type and voltage
- Storage and/or dry batteries
- - For headphones or amp.
- from Radiomuseum.org
- Model: Acratest Preamplifier 247 - Federated Purchaser, Inc.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 6 = 1935 and before
- Other Models
Here you find 209 models, 125 with images and 88 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Federated Purchaser, Inc. (Acratone, Acratest); New York City (NY)