1900-A: Difference between revisions

1900-A (view source)

Revision as of 04:03, 14 May 2024

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-Type '''1900-A Wave Analyzer'''.
+{{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==
+* '''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==
+* [[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]]
 ==Photos==
 <gallery>
 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>
 [[Category:Wave Analyzer]]
+__NOTOC__