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1141-A: Difference between revisions
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Add specifications and photo gallery
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(Add specifications and photo gallery) |
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|caption=General Radio 1141-A Audio-Frequency Meter | |caption=General Radio 1141-A Audio-Frequency Meter | ||
|series= | |series= | ||
|introduced= | |introduced=1948 | ||
|discontinued= | |discontinued=1951 | ||
|designers= | |designers= | ||
|manuals= | |manuals= | ||
| Line 21: | Line 21: | ||
==Specifications== | ==Specifications== | ||
* '''Frequency:''' 20 Hz to 20 kHz in 3 decade ranges | |||
* '''Accuracy:''' ±0.5% over the entire frequency range | |||
* '''Dial:''' 6-inch dial with slow-motion drive through an angle of about 320°, giving a scale length of about 17 inches for each 10 to 1 frequency range. The total scale length is thus over 4 feet | |||
* '''Input Impedance:''' 3 to 10 kΩ, the smaller value corresponding to the higher frequencies | |||
* '''Input Voltage:''' 110 volts rms, maximum | |||
* '''Output Impedance:''' 1 to 4 kΩ, the smaller value corresponding to the higher frequencies | |||
* '''Controls:''' Frequency dial, range selector switch, and resistance-balance control | |||
==Links== | ==Links== | ||
ToDo: link to the February 1948 General Radio Experimenter | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1141-A Front.jpeg | GR 1141-A Front.jpeg | ||
GR 1141-A Inside Rear.jpeg | |||
GR 1141-A Inside Top.jpeg | |||
GR 1141-A Inside Bottom.jpeg | |||
GR 1141-A Inside Bottom-Rear.jpeg | |||
GR 1141-A Inside Left Detail.jpeg | |||
GR 1141-A Inside Bottom Detail.jpeg | |||
GR 1141-A Inside Bottom Right Detail.jpeg | |||
GR 1141-A Inside Right Detail.jpeg | |||
</gallery> | </gallery> | ||
[[Category:Frequency Standards and Meters]] | [[Category:Frequency Standards and Meters]] | ||