1521-B: Difference between revisions
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{{GR Product | |||
|model=1521-B | |||
|codes=1521-9802 | |||
|class=recorders and dial Drives | |||
|summary=Graphic Level Recorder | |||
|image=GR 1521-B Close-Up.jpg | |||
|caption=General Radio 1521-B Graphic Level Recorder | |||
|series=1521 | |||
|introduced=1965 | |||
|discontinued=1978+ | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1521-B Graphic Level Recorder 1521-0150-D 03_1969.pdf|General Radio 1521-B Graphic Level Recorder Manual 1521-0150-D 1969]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1521-B Graphic Level Recorder}} was introduced in {{Catalog S}} and remained available through {{Catalog 1978}}. | |||
The Type | |||
==Specifications== | ==Specifications== | ||
* '''Recording Range:''' 40 dB full scale with standard potemtiometer | |||
* '''Frequency Range:''' 7 Hz to 200 kHz | |||
* '''Maximum Input Voltage: 100 V ac | |||
* '''Input Attenuator:''' 60 dB in 10-dB steps | |||
* '''Input Impedance:''' 10,000 Ω for ac level recording; 1000 Ω for dc | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1521-A 06_1959.pdf|Experimenter June 1959 describing Type 1521-A]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR- | GR 1521-B Front.jpg | ||
GR 1521-B Left Side.jpg | |||
GR 1521-B Rear.jpg | |||
GR 1521-B Inside Left.jpg | |||
GR 1521-B Inside Rear A.jpg | |||
GR 1521-B Inside Top.jpg | |||
GR 1521-B Inside Board.jpg | |||
GR 1521-B Inside Bottom A.jpg | |||
GR 1521-B Pen Motor.jpg | |||
GR 1521-B Power Supply Top.jpg | |||
GR 1521-B Power Supply Bottom.jpg | |||
GR 1521-B Inside Transmission.jpg | |||
gr 1521-B P10 Drive Unit.jpg | |||
</gallery> | </gallery> | ||
[[Category:Recorders and Dial Drives]] | [[Category:Recorders and Dial Drives]] | ||
Revision as of 17:05, 10 June 2024
The General Radio 1521-B Graphic Level Recorder was introduced in Catalog S (1965) and remained available through Catalog 1978.
The Type
Specifications
- Recording Range: 40 dB full scale with standard potemtiometer
- Frequency Range: 7 Hz to 200 kHz
- Maximum Input Voltage: 100 V ac
- Input Attenuator: 60 dB in 10-dB steps
- Input Impedance: 10,000 Ω for ac level recording; 1000 Ω for dc
