1215-C: Difference between revisions
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{{GR Product | |||
|model=1215-C | |||
|class=oscillators | |||
|summary=Unit oscillator | |||
|image=GR 1215-C Front Close-up.jpg | |||
|caption=General Radio 1215-C Unit Oscillator | |||
|series= | |||
|introduced=1963 | |||
|discontinued=1973 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1215-B Unit Oscillator 794-B 1955.pdf|General Radio 1215-B Unit Oscillator Manual 794-B 1955]] | |||
* '''1215-C Manual Needed''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1215-C Unit Oscillator}} was introduced in {{Catalog R}} and remained available through {{Catalog 1973}}. | |||
The Type 1208-C is a general-purpose frequency source covering 50 to 250 MHz. It finds use as a generator for bridges, admittance meters, and impedance meters. | |||
Direct amplitude modulation at audio frequencies is provided by a front panel phone jack. | |||
With a [[1000-P6|1000-P6 Crystal Diode Modulator]] accessory, frequencies from 0 to 5 MHz can be used to provide amplitude modulation. | |||
As a unit oscillator, the 1215-C requires an external power supply, type [[1203-B]] is recommended. | |||
==Specifications== | ==Specifications== | ||
* '''Frequency Range:''' 50 to 250 MHz | |||
* '''Calibration Accuracy:''' ±1% | |||
* '''Warmup Frequency Drift:''' 0.4% typical | |||
* '''Output:''' 100 mW into 50 Ω with Type 1269-A power supply | |||
==Links== | ==Links== | ||
* [[Media:GR Exp Unit Oscillators 08_1963.pdf|Experimenter August 1963 describing Unit Oscillators]] | |||
* [[Media:2367681 Patent Butterfly tuned circuit.pdf|Patent for the Butterfly Tuning Circuit]] | |||
* Compatible with [[908-P1|908-P1 Synchronous Dial Drive]] and [[908-R96|908-R96 Synchronous Dial Drive]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1215-C Front.jpg | |||
GR 1215-C Left.jpg | |||
GR 1215-C Rear Shield.jpg | |||
GR 1215-C Rear View.jpg | |||
GR 1215-C Right.jpg | |||
GR 1215-C Top Rear.jpg | |||
GR 1215-C Oscillator Tube.jpg|12AT7 Oscillator Tube | |||
</gallery> | </gallery> | ||
[[Category:Oscillators]] | [[Category:Oscillators]] | ||
[[Category:Unit Instruments]] | [[Category:Unit Instruments]] | ||
Latest revision as of 19:07, 28 May 2024
The General Radio 1215-C Unit Oscillator was introduced in Catalog R (1963) and remained available through Catalog 1973.
The Type 1208-C is a general-purpose frequency source covering 50 to 250 MHz. It finds use as a generator for bridges, admittance meters, and impedance meters.
Direct amplitude modulation at audio frequencies is provided by a front panel phone jack. With a 1000-P6 Crystal Diode Modulator accessory, frequencies from 0 to 5 MHz can be used to provide amplitude modulation.
As a unit oscillator, the 1215-C requires an external power supply, type 1203-B is recommended.
Specifications
- Frequency Range: 50 to 250 MHz
- Calibration Accuracy: ±1%
- Warmup Frequency Drift: 0.4% typical
- Output: 100 mW into 50 Ω with Type 1269-A power supply
Links
- Experimenter August 1963 describing Unit Oscillators
- Patent for the Butterfly Tuning Circuit
- Compatible with 908-P1 Synchronous Dial Drive and 908-R96 Synchronous Dial Drive
Photos
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12AT7 Oscillator Tube
