1211-B: Difference between revisions
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{{GR Product | |||
|model=1211-B | |||
|codes=ATLAS | |||
|class=oscillators | |||
|summary=unit oscillator | |||
|image=GR 1211-B Close-Up | |||
|caption=General Radio 1211-B Unit Oscillator | |||
|series=1211 | |||
|introduced=1956 | |||
|discontinued=1961 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1211-B Unit Oscillator 802-D 03_1958.pdf|General Radio 1211-B Unit Oscillator Manual 802-D 03_1958]] | |||
}} | |||
The '''General Radio 1211-B HF Unit Oscillator''' introduced in {{Catalog O}} and remained available through {{Catalog Q}}. | |||
The 1211-B is an updated version of the original [[1211-A]] unit oscillator. It features both variable capacitance and inductance for frequency control in two bands. Amplitude modulation is possible via a front panel phone jack using the Type [[1214-A]] oscillator. The Type 1211-B like most "Unit" instruments requires an external power supply, [[1203-B]] is recommended. The Type 1211-B is used as generator for the Type [[916-AL]], [[1601-A]] and [[1606-A]] bridges. | |||
==Specifications== | ==Specifications== | ||
* '''Frequency Range:''' 0.5 to 50 MHz in two ranges | |||
* '''Frequency Calibration Accuracy:''' ±2 percent at no load | |||
* '''Output Power:''' At least 200 milliwatts into 50 Ω load at any frequency. Over the 0.5 to 5 MHz range, average output is approximately 2 watts | |||
==Links== | ==Links== | ||
* [[Media:GR 1211- | * [[Media:GR Exp 1211-A 09_1953.pdf|Experimenter September 1953 describing Type 1211-B]] | ||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1211-B Front.jpg | |||
GR 1211-B Left Side.jpg | |||
GR 1211-B Right Side.jpg | |||
GR 1211-B Rear.jpg | |||
GR 1211-B Inside Left A.jpg | |||
GR 1211-B Inside Rear.jpg | |||
GR 1211-B Inside Right.jpg | |||
GR 1211-B Inside Right A.jpg | |||
GR 1211-B Inside Shield.jpg | |||
</gallery> | </gallery> | ||
[[Category:Oscillators]] | [[Category:Oscillators]] | ||
[[Category:Unit Instruments]] | [[Category:Unit Instruments]] | ||
Revision as of 06:23, 7 July 2024
The General Radio 1211-B HF Unit Oscillator introduced in Catalog O (1956) and remained available through Catalog Q (1961).
The 1211-B is an updated version of the original 1211-A unit oscillator. It features both variable capacitance and inductance for frequency control in two bands. Amplitude modulation is possible via a front panel phone jack using the Type 1214-A oscillator. The Type 1211-B like most "Unit" instruments requires an external power supply, 1203-B is recommended. The Type 1211-B is used as generator for the Type 916-AL, 1601-A and 1606-A bridges.
Specifications
- Frequency Range: 0.5 to 50 MHz in two ranges
- Frequency Calibration Accuracy: ±2 percent at no load
- Output Power: At least 200 milliwatts into 50 Ω load at any frequency. Over the 0.5 to 5 MHz range, average output is approximately 2 watts
