- Country
- Great Britain (UK)
- Manufacturer / Brand
- Solartron Laboratory Instruments Ltd.; Surrey
- Year
- 1953
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 272109
- Wave bands
- - without
- Power type and voltage
- Line (AC, UC or DC not known)
- Material
- Metal case
- from Radiomuseum.org
- Model: VP250 - Solartron Laboratory
- Shape
- Tablemodel, with any shape - general.
- Notes
-
Phase-Sensitive Voltmeter VP250.
Intended mainly for deriving Nyquist characteristics of amplifiers in the range 20 Hz to 20 kHz.Two 6-inch centre-zero meters indicate respectively the in-phase and quadrature components of the output of the unit under test with reference to the phase of the input signal. Each of these meters is provided with a separate amplifier channel having input resistance greater than 50 MΩ; one of them has a 90° phase shifter. The meters themselves are wattmeters (to provide phase discrimination) of a new thermocouple type, to cover the wide frequency range.
Range of measurement is 15 mV to 15 V in seven ranges.
- Mentioned in
- Wireless World (The), London (WW, 79) (Vol. 59, August 1953, p. 379-380.)
- Author
- Model page created by Karl Dilcher. See "Data change" for further contributors.
- Other Models
-
Here you find 32 models, 29 with images and 11 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Solartron Laboratory Instruments Ltd.; Surrey