Preamplifier K
Packard Bell Co.; Los Angeles (CA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Packard Bell Co.; Los Angeles (CA)
- Year
- 1940 ??
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 338570
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 2
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Powered by external power supply or a main unit. / DC: 28 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Metal case
- from Radiomuseum.org
- Model: Preamplifier K - Packard Bell Co.; Los Angeles
- Shape
- Chassis only or for «building in»
- Notes
-
Preamplifier built to use American magnetic type microphones (T34 American T25-26 English) in equipment designed to use the T17 microphone. The PB Model K preamplifier was used on airplanes and tanks.
The output transformer drove a relay with which the conversation could be interrupted at will.
- Mentioned in
- -- Original-techn. papers. (Costruire Diverte, Italy, number 7 December 1962)
- Author
- Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.
- Other Models
-
Here you find 387 models, 195 with images and 338 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Packard Bell Co.; Los Angeles (CA)