1304-B

The General Radio 1304-B Beat Frequency Oscillator was introduced in Catalog N (1954) and remained available through Catalog U (1970).

Description Pending

Specifications

• Frequency Range: 20 to 40,000 Hz in two ranges
• Calibration Accuracy: ± (1% + 0.5 cycle) after front panel calibration
• Drift: The drift from a cold start is less than 7 cycles in the first hour
• Output Voltage: Full-scale, open-circuit output voltages of 50 mV, 500 mV, 5 V, and 50 V
• Output Impedance: 600 Ω, resistive, within ±2%
• Harmonic Distortion: Total harmonic content less than 0.25% from 100 Hz to 10 kHz, less than 0.5% below 100 Hz, less than 1% above 10 kHz

Links

• Experimenter describing Type 1304-B June 1954
• Experimenter describing Type 1304-B November 1954

Photos

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  1521-P15 Recorder Dial Drive Unit