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1900-A: Difference between revisions
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Type | {{GR Product | ||
|model=1900-A | |||
|codes=1900-9801 | |||
|class=wave analyzer | |||
|summary=Wave Analyzer | |||
|image=GR 1900-A Close-Up.jpg | |||
|caption=General Radio 1900-A Wave Analyzer | |||
|series=1900 | |||
|introduced=1963 | |||
|discontinued=1973 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1900-A Wave Analyzer 1900-0100-A 05_1965.pdf|General Radio 1900-A Wave Analyzer Manual 1900-0100-A 1965]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1900-A Wave Analyzer}} was introduced in {{Catalog R}} and remained available through {{Catalog 1973}}. | |||
The Type 1900-A Wave Analyzer is designed to measure and analyze electrical signals between 20 Hz and 54 KHz at bandwidths as narrow as 3 Hz. When coupled with the recorder Type [[1521-B]] a permanent record of the spectrum of interest is produced. The 1900-A has a built in tracking generator whose frequency is synchronized with the analyzer frequency. This generator can be used as a source for bridges or networks, the output can be measured using its high selectivity to reduce noise and harmonics. Applications include analyzing filters and frequency response of amplifiers or networks. | |||
The 1900-A is complex instrument but major components are housed in their respective shielded enclosures. These subassemblies are connected using RCA and Jones type connectors simplifying service. The 1900-A and the [[1521-B]] combination make up the Type [[1910-A]] Recording Wave Analyzer. | |||
==Specifications== | ==Specifications== | ||
* '''Frequency Range:''' 20 to 54,000 Hz | |||
* '''Accuracy of Calibration:''' ±(½% +5 Hz) up to 50 kHz;. ±1% beyond 50 kHz | |||
* '''Incremental Frequency Dial (ΔF):''' ±100 Hz. accuracy is ±2 Hz below 2 kHz, ±5 Hz up to 50 kHz | |||
* '''Selectivity:''' three bandwidths (3, 10, and 50 Hz) selected by switch | |||
* '''Input Impedance:''' 1 MΩ on all ranges | |||
* '''Input Voltage Range:''' 30 μV to 300 V full scale | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1900-A 04_1964.pdf|Experimenter April 1964 describing Type 1900-A]] | |||
* [[Media:GR Exp 1900-A 08_1966.pdf|Experimenter August 1966 describing Type 1900-A]] | |||
* [[1910]] | * [[1910]] | ||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR-1910-ad-Electronics-1969-10-04.jpg | GR-1910-ad-Electronics-1969-10-04.jpg | ||
GR 1900-A Front.jpg | |||
GR 1900-A Case Side.jpg | |||
GR 1900-A Case Rear.jpg | |||
GR 1900-A Case Rear Close-Up.jpg | |||
</gallery> | |||
===Top View=== | |||
<gallery> | |||
GR 1900-A 1 Inside Top.jpg | |||
GR 1900-A 2 Inside Top Left.jpg | |||
GR 1900-A 3 Inside Top Center.jpg | |||
GR 1900-A 4 Inside Top Right.jpg | |||
GR 1900-A 5 Inside Top Center Close-up.jpg | |||
</gallery> | |||
===Left View=== | |||
<gallery> | |||
GR 1900-A 1 Inside Left Side.jpg | |||
GR 1900-A 2 Inside Rear Board B.jpg | |||
GR 1900-A 3 Inside Bottom Left Board.jpg | |||
</gallery> | |||
===Right View=== | |||
<gallery> | |||
GR 1900-A 1 Inside Right Side.jpg | |||
GR 1900-A 2 Inside Right Top.jpg | |||
GR 1900-A 3 Inside Right upper.jpg | |||
GR 1900-A 4 Inside Right Lower.jpg | |||
GR 1900-A 5 Inside Left Side Open.jpg | |||
</gallery> | |||
===Bottom View=== | |||
<gallery> | |||
GR 1900-A 1 Inside Bottom.jpg | |||
GR 1900-A 2 Inside Bottom Right.jpg | |||
GR 1900-A 3 Inside Bottom Left Close-Up.jpg | |||
GR 1900-A 4 Inside Bottom Left.jpg | |||
GR 1900-A 5 Inside Bottom Left Open.jpg | |||
GR 1900-A 6 Inside Bottom Open.jpg | |||
GR 1900-A 7 Inside Bottom Left Open A.jpg | |||
GR 1900-A 8 Inside Bottom Right Open.jpg | |||
</gallery> | |||
===Rear View=== | |||
<gallery> | |||
GR 1900-A 1 Inside Rear Left.jpg | |||
GR 1900-A 2 Inside Rear Right Upper.jpg | |||
GR 1900-A 3 Inside Upper Left.jpg | |||
GR 1900-A 4 Inside Rear Center.jpg | |||
GR 1900-A 5 Inside Rear Upper Right.jpg | |||
GR 1900-A 6 Inside Rear Lower Right.jpg | |||
GR 1900-A 7 Inside Rear Right.jpg | |||
</gallery> | </gallery> | ||
[[Category:Wave Analyzer]] | [[Category:Wave Analyzer]] | ||
__NOTOC__ | |||