Impedance-Measuring Circuit 821A
General Radio Company; Cambridge (MA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- General Radio Company; Cambridge (MA)
- Year
- 1955
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 219569
-
- alternative name: GenRad
Click on the schematic thumbnail to request the schematic as a free document.
- Wave bands
- Wave Bands given in the notes.
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Metal case
- from Radiomuseum.org
- Model: Impedance-Measuring Circuit 821A - General Radio Company;
- Shape
- Tablemodel, low profile (big size).
- Dimensions (WHD)
- 430 x 320 x 220 mm / 16.9 x 12.6 x 8.7 inch
- Notes
- The Twin-T Impedance-Measuring Circuit is a null Instrument for use in measuring inpedance at frequencies from 460 kc to 30 Mc. Measurements can be made at frequencies slightly below and above this nominal frequency range.
- Net weight (2.2 lb = 1 kg)
- 12.9 kg / 28 lb 6.6 oz (28.414 lb)
- Price in first year of sale
- 570.00 $
- Source of data
- -- Original-techn. papers.
- Author
- Model page created by Alexander Küffer. See "Data change" for further contributors.
- Other Models
-
Here you find 238 models, 212 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from General Radio Company; Cambridge (MA)
Collections
The model Impedance-Measuring Circuit is part of the collections of the following members.