1209-C: Difference between revisions
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|model=1209-C | |model=1209-C | ||
|class=oscillators | |class=oscillators | ||
|summary= | |summary=Unit oscillator | ||
|image=GR 1209-C Front Close-Up.jpg | |image=GR 1209-C Front Close-Up.jpg | ||
|caption=General Radio 1209-C Unit Oscillator | |caption=General Radio 1209-C Unit Oscillator | ||
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The {{Title|General Radio 1209-C Unit Oscillator}} was introduced in {{Catalog R}} and remained available through {{Catalog S}}. | The {{Title|General Radio 1209-C Unit Oscillator}} was introduced in {{Catalog R}} and remained available through {{Catalog S}}. | ||
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 | 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. | ||
With a crystal-diode modulator accessory ([[1000-P6]] or [[1000-P7]]), frequencies from 0 to 5 MHz can be used to provide amplitude modulation. | |||
==Specifications== | ==Specifications== | ||
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* [[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 | * [https://www.pa4tim.nl/?p=4283 1209-C] @ Fred PA4TIM's site | ||
* Compatible with [[908-P1|908-P1 Synchronous Dial Drive]] and [[908-R96|908-R96 Synchronous Dial Drive]] | |||
==Photos== | ==Photos== | ||
Latest revision as of 20:08, 28 May 2024
The General Radio 1209-C Unit Oscillator was introduced in Catalog R (1963) 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. With a crystal-diode modulator accessory (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
- Compatible with 908-P1 Synchronous Dial Drive and 908-R96 Synchronous Dial Drive
