VTVM + LF Amplifier 47
Instrument Electronics; Little Neck NY
- Country
- United States of America (USA)
- Manufacturer / Brand
- Instrument Electronics; Little Neck NY
- Year
- 1947
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 225035
- Number of Tubes
- 8
- Valves / Tubes
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC)
- Loudspeaker
- - - No sound reproduction output.
- Material
- Metal case
- from Radiomuseum.org
- Model: VTVM + LF Amplifier 47 - Instrument Electronics; Little
- Shape
- Tablemodel, slant panel.
- Notes
-
Model 47 audio frequency voltmeter measures as low as 50 microvolts to 500 volts in 13 steps of 10 VU each in the range from -84 VU to +55 VU. Provision is made for simultaneous use as an amplifier and voltmeter. The amplifier has a gain of 40,000. The input impedance is 1 megohm at 12mmf. For frequencies from 15 cps to 30 kc. Eight tubes are used.
- Source of data
- Radio Retailing (Radio & Television R.)
- Author
- Model page created by Heiko zur Mühlen. See "Data change" for further contributors.
- Other Models
-
Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Instrument Electronics; Little Neck NY