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The '''Telequipment C3''' is a solid state oscilloscope calibrator. | The '''Telequipment C3''' is a solid state oscilloscope calibrator. | ||
From the manual:< | From the manual: | ||
<blockquote> | |||
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. | |||
</blockquote> | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Markers | 100 ns to 5 s, | {{Spec | Markers | 100 ns to 5 s, 1–2–5; pulse amplitude ~1 V; pulse width ~2% of period; accuracy ±0.01% }} | ||
{{Spec | | {{Spec | 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. }} | ||
{{Spec | Fast Rise Signal | Square waveform switched at 100 kHz, 1 MHz, 10 MHz; rise time ≤ | {{Spec | 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 }} | ||
{{Spec | | {{Spec | Television Waveform | 625-line signal, +ve and —ve modulation; amplitude 1.6 V<sub>p-p</sub>; output impedance 75 Ω; -ve going output is DC coupled from ground, +ve going output is AC coupled }} | ||
{{Spec | 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. }} | |||
{{Spec | 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 }} | |||
{{Spec | Ext Clock | External clock frequencies of 2 V peak to peak amplitude may be fed to the 10 MHz Auxiliary Output socket }} | |||
{{Spec | Power | 100, 110, 120, 200, 220, 240 V, 48 to 440 Hz, 13 VA. }} | |||
{{Spec | Size | 107 mm × 228 mm × 285 mm (H×W×D) }} | |||
{{Spec | | |||
{{Spec | Ext Clock | External clock frequencies of | |||
{{Spec | Power | |||
{{Spec | Size | 107 mm × 228 mm × 285 mm (H×W×D) }} | |||
{{EndSpecs}} | {{EndSpecs}} | ||
==Pictures== | ==Pictures== |