DC Voltmeter
Roller-Smith Company; New York City
- Country
- United States of America (USA)
- Manufacturer / Brand
- Roller-Smith Company; New York City
- Year
- 1925 ??
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 226544
ebay.com #150899468763 seller: rspickers3
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Wooden case
- from Radiomuseum.org
- Model: DC Voltmeter - Roller-Smith Company; New York
- Shape
- Tablemodel, with any shape - general.
- Notes
-
DC-Voltmeter by Roller-Smith Co., Bethlehem, PA.
Maximum rating 750 V, mirrored scale with two ranges 0 - 750 V and 0 - 75 V. Specified resistance 78990 and 7889 Ohms.
- Other Models
-
Here you find 4 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Roller-Smith Company; New York City