1302-A: Difference between revisions
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{{GR Product | {{GR Product | ||
|model=1302-A | |model=1302-A | ||
|codes=FINAL | |||
|class=oscillators | |class=oscillators | ||
|summary= | |summary=Oscillator | ||
|image=GR 1302-A Front.jpg | |image=GR 1302-A Front.jpg | ||
|caption=General Radio 1302-A Oscillator | |caption=General Radio 1302-A Oscillator | ||
| Line 11: | Line 12: | ||
|manuals= | |manuals= | ||
* [[Media:GRwiki 1302A Oscillator Form 661-I 10_1960.pdf|General Radio 1302-A Oscillator Manual 661-I 1960]] | * [[Media:GRwiki 1302A Oscillator Form 661-I 10_1960.pdf|General Radio 1302-A Oscillator Manual 661-I 1960]] | ||
{{Catalog History}} | |||
}} | }} | ||
The | The {{Title|General Radio 1302-A Oscillator}} was introduced in {{Catalog L}} and remained available through {{Catalog Q}}. | ||
The Type 1302-A is an R-C oscillator using a modified | The Type 1302-A is an R-C oscillator using a modified [[wikipedia:Wien bridge|Wien Bridge]] to determine the frequency at low distortion. | ||
Its uses include audio testing or as a source for bridge measurements. An example is its use as a generator in the [[1610-A|1610-A Capacitance Measuring System]]. | |||
==Specifications== | ==Specifications== | ||
* '''Frequency Range:''' | * '''Frequency Range:''' 10 Hz to 100 kHz in four ranges | ||
* '''Frequency Calibration:''' ±( | * '''Frequency Calibration:''' ±(1.5% + 0.2 Hz) | ||
* '''Output Impedance:''' Balanced | * '''Output Impedance:''' Balanced 600 Ω, grounded 5 kΩ (see manual) | ||
* '''Output Voltage:''' At least 20 V open circuit on | * '''Output Voltage:''' At least 20 V open circuit on 5 kΩ output, and 10 V open circuit on 600 Ω output | ||
==Links== | ==Links== | ||
* [[Media:GRwiki Exp 1302-A 11_1947.pdf|Experimenter describing Type 1302-A | * [[Media:GRwiki Exp 1302-A 11_1947.pdf|Experimenter November 1947 describing Type 1302-A]] | ||
==Photos== | ==Photos== | ||
Latest revision as of 17:44, 16 April 2024
The General Radio 1302-A Oscillator was introduced in Catalog L (1948) and remained available through Catalog Q (1961).
The Type 1302-A is an R-C oscillator using a modified Wien Bridge to determine the frequency at low distortion.
Its uses include audio testing or as a source for bridge measurements. An example is its use as a generator in the 1610-A Capacitance Measuring System.
Specifications
- Frequency Range: 10 Hz to 100 kHz in four ranges
- Frequency Calibration: ±(1.5% + 0.2 Hz)
- Output Impedance: Balanced 600 Ω, grounded 5 kΩ (see manual)
- Output Voltage: At least 20 V open circuit on 5 kΩ output, and 10 V open circuit on 600 Ω output
