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 | 10 kHz / 1 kHz / 50 Hz / 10 Hz / 1 Hz square wave, or 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 75 Ω at ≤0.5 V and 0.5 mV. |
| Fast Rise Signal | Square waveform switched at 100 kHz, 1 MHz, 10 MHz; rise time ≤ 1 ns; output 0.2 V max. into 50 Ω |
| Television Waveform | 625-line signal, +ve and —ve modulation; amplitude 1.6 Vp-p; output impedance 75 Ω; -ve going output is DC coupled from ground, +ve going output is AC coupled |
| TV signal modulation | Black, White, or square wave at 62.5 kHz / 250 kHz / 1 MHz / 5 MHz; Modulation can be switched on and off at one-second 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 2 V peak to peak amplitude may be fed to the 10 MHz Auxiliary Output socket |
| Power | 100, 110, 120, 200, 220, 240 V, 48 to 440 Hz, 13 VA. |
| Size | 107 mm × 228 mm × 285 mm (H×W×D) |
