1209-C: Difference between revisions
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The '''General Radio 1209-C Unit Oscillator''' was introduced in 1963 Catalog R and remained available through Catalog S 1965. | The '''General Radio 1209-C Unit Oscillator''' was introduced in 1963 Catalog R and remained available through Catalog S 1965. | ||
The Type 1208-C is a general purpose frequency source covering 250 to 960 MHz. Direct amplitude modulation at audio frequencies is provided by a front panel phone jack and with an accessory crystal-diode modulator (1000-P6 or 1000-P7), frequencies from 0 to 5 MHz can be used to provide amplitude modulation. | The Type 1208-C is a general purpose frequency source covering 250 to 960 MHz. Direct amplitude modulation at audio frequencies is provided by a front panel phone jack and with an accessory crystal-diode modulator ([[1000-P6]] or [[1000-P7]]), frequencies from 0 to 5 MHz can be used to provide amplitude modulation. | ||
==Specifications== | ==Specifications== | ||
* '''Frequency Range:''' 250 to 960 MHz | * '''Frequency Range:''' 250 to 960 MHz | ||
* '''Frequency Calibration Accuracy:''' 1% | * '''Frequency Calibration Accuracy:''' 1% | ||
* '''Warmup Frequency Drift (Typical):''' .2% | * '''Warmup Frequency Drift (Typical):''' 0.2% | ||
* '''Output Power:''' 150 mW into 50 Ω with Type 1269-A Supply | * '''Output Power:''' 150 mW into 50 Ω with Type [[1269-A|1269-A Supply]] | ||
==Links== | ==Links== | ||
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* [[Media:GR Exp Unit Oscillators 08_1963.pdf|Experimenter describing Unit Oscillators August 1963]] | * [[Media:GR Exp Unit Oscillators 08_1963.pdf|Experimenter describing Unit Oscillators August 1963]] | ||
* [[Media:2367681 Patent Butterfly tuned circuit.pdf|Patent for the Butterfly Tuning Circuit]] | * [[Media:2367681 Patent Butterfly tuned circuit.pdf|Patent for the Butterfly Tuning Circuit]] | ||
* [https://www.pa4tim.nl/?p=4283 1209-C] @ Fred PA4TIM's site | |||
==Photos== | ==Photos== | ||
Revision as of 16:21, 1 April 2024
The General Radio 1209-C Unit Oscillator was introduced in 1963 Catalog R and remained available through Catalog S 1965.
The Type 1208-C is a general purpose frequency source covering 250 to 960 MHz. Direct amplitude modulation at audio frequencies is provided by a front panel phone jack and with an accessory crystal-diode modulator (1000-P6 or 1000-P7), frequencies from 0 to 5 MHz can be used to provide amplitude modulation.
Specifications
- Frequency Range: 250 to 960 MHz
- Frequency Calibration Accuracy: 1%
- Warmup Frequency Drift (Typical): 0.2%
- Output Power: 150 mW into 50 Ω with Type 1269-A Supply
Links
- Experimenter describing Unit Oscillators June 1965
- Experimenter describing Unit Oscillators August 1963
- Patent for the Butterfly Tuning Circuit
- 1209-C @ Fred PA4TIM's site
