1304-B
The General Radio 1304-B Beat Frequency Oscillator was introduced in 1954 Catalog N 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
