2,368
edits
1215-B: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 17: | Line 17: | ||
The {{Title|General Radio 1215-C Unit Oscillator}} was introduced in {{Catalog O}} and remained available through {{Catalog Q}}. | The {{Title|General Radio 1215-C Unit Oscillator}} was introduced in {{Catalog O}} and remained available through {{Catalog Q}}. | ||
The Type 1208-B is a general-purpose frequency source covering 50 to 250 MHz. Its an updated version of the 1215-A, most of the improvements are mechanical. It finds use as a generator for bridges, admittance meters, and impedance meters. By the use of the "butterfly" tuning arrangement and lack of sliding contacts, the oscillator is compatible with most sweep devices. In combination with | The Type 1208-B is a general-purpose frequency source covering 50 to 250 MHz. Its an updated version of the [[1215-A]], most of the improvements are mechanical. It finds use as a generator for bridges, admittance meters, and impedance meters. By the use of the [[butterfly circuit|"butterfly" tuning arrangement]] and lack of sliding contacts, the oscillator is compatible with most sweep devices. In combination with an [[874-GA|874-GA Attenuator]], an [[874-VR|874-VR Voltmeter Rectifier]], and an [[874-VI|874-VI Voltmeter Indicator]] it provides an accurately known output voltage for receiver testing. | ||
Direct amplitude modulation at audio frequencies is provided by phone jack located on the oscillator housing. With | Direct amplitude modulation at audio frequencies is provided by a phone jack located on the oscillator housing. With a [[1000-P6|1000-P6 Crystal Diode Modulator]] accessory, modulation from 0 to 20 MHz is possible that is essentially free of FM. | ||
As a unit oscillator, the 1215-B requires an external power supply, type 1203-B is recommended. | As a unit oscillator, the 1215-B requires an external power supply, type [[1203-B]] is recommended. | ||
==Specifications== | ==Specifications== | ||
| Line 28: | Line 28: | ||
* '''Frequency Calibration Accuracy:''' 1% at no load | * '''Frequency Calibration Accuracy:''' 1% at no load | ||
* '''Warm-up Frequency Drift:''' 0.4% | * '''Warm-up Frequency Drift:''' 0.4% | ||
* '''Output Power:''' 80 mW into a | * '''Output Power:''' 80 mW into a 50 Ω load | ||
==Links== | ==Links== | ||