Standing Wave Amplifier-Indicator B813T
Elliot Brothers Ltd.; Century Works, Lewisham (London)
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Elliot Brothers Ltd.; Century Works, Lewisham (London)
- Year
- 1962 ?
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 330297
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- Semiconductors present.
- Semiconductors
- Wave bands
- - without
- Power type and voltage
- Line / Storage batteries (perhaps also batteries)
- Loudspeaker
- - - No sound reproduction output.
- from Radiomuseum.org
- Model: Standing Wave Amplifier-Indicator B813T - Elliot Brothers Ltd.; Century
- Notes
-
An FXR portable transistorized standing wave amplifier, designed to be used with internal rechargable batteries (to avoid mains noise) or AC mains. Its specially designed meter and linear amplifier give a full scale maximum error at 5dB of only ±0.05dB. Its calibrated range is 75 dB. Normal, expanded and compressed meter scales are provided and can be used interchangeably without the need for readjustment of the gain control. With special circuits for bolometer protection and a meter display for bolometer resistance checking and current adjustment. Other features include controls and circuits for selective meter damping, bandwidth, frequency selection and peaking, range adjustment in 5dB steps, and battery voltage checking.
- Mentioned in
- Electronic Engineering, volume 34, April 1962
- Author
- Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.
- Other Models
-
Here you find 4 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Elliot Brothers Ltd.; Century Works, Lewisham (London)