Telequipment Oscilloscope Calibrator C3
The Telequipment C3 is a solid state oscilloscope calibrator.
From the manual:
The Calibration Unit Type C3 is a small portable mains-operated instrument for use in service centres. It provides a wide range of output signals, with a high degree of accuracy as shown in the Specification, for test and calibration purposes.
Key Specifications
| Markers | 100 ns to 5 s, 1-2-5; pulse amplitude ~1 V; pulse width ~2% of period; accuracy ±0.01% |
|---|---|
| Amplitude Calibrator | Square waves switched at 10kHz, 1kHz, 50Hz, 10Hz, 1Hz, also DC; amplitude 100 V to 0.025 V and 100 mV to 0.025 mV, 1-2-5; rise time ≤ 100 ns; 50 Hz output has rise time of 400 μs. Accuracy ±0.2% when loaded with 1 MΩ except 0.05 V/mV ±0.3% and 0.025 V/mV ±0.35%; output impedance varies from 5 kΩ at 50 V and 50 mV down to 75Ω at ≤ 0.5 V and 0.5 mV. |
| Fast Rise Signal | Square waveform switched at 100 kHz, 1 MHz, 10 MHz; rise time ≤ 1 nsec; output 0.2 V max into 50 Ω |
| Television Waveform | A 625 line signal, +ve and —ve modulation; amplitude 1.6 Vp-p; iutput impedance 75 Ω; -ve going output is DC coupled from earth, +ve going output is AC coupled. Modulation is switch selected as:
Also modulation can be switched on and off at 1 sec rate. |
| Auxiliary Outputs | Available on 4 mm sockets at the side; square waves at 10 MHz, 1 MHz, 100 kHz, 10 kHz, 1 kHz, 100 Hz, 10 Hz, 1 Hz; amplitude ~2.5 V, output impedance ~1 kΩ |
| Ext Clock | External clock frequencies of 2V peak to peak amplitude may be fed to the 10 MHz Auxiliary Output socket. |
| Power Supply | 100, 110, 120, 200, 220, 240 V, 48 to 440 Hz, 13 VA. |
| Size | 107 mm × 228 mm × 285 mm (H×W×D) |