3A7

Manuals – Specifications – Links – Pictures

The Tektronix 3A7 Differential Comparator is a differential amplifier plug-in for 560-series scopes. It provides a precision variable DC source, allowing an input signal to be shifted by a specific voltage offset.

Key Specifications

Bandwidth	10 MHz in 10 mV/div and above, 8 MHz at 5 mV/div, 6 MHz at 2 mV/div, 4 MHz at 1 mV/div
Deflection	1 mV/div to 50 mV/div (1–2–5), variable control up to 125 mV/div, separate 1–10–100–1000× attenuator, i.e. up to 50(125) V/div
Display modes	A - Vc,  A - B,  Vc - B
Comparison voltage	0 to ±1.1 V or 0 to ±10 V, 10 coarse steps plus 10-turn pot with mechanical readout

Links

Documents Referencing 3A7

Document	Class	Title	Authors	Year	Links
Tekscope 1970 V2 N5 Oct 1970.pdf	Article	Amplitude Measurement to Better Than 1%		1970	1S1 • 7503 • 7A13 • 1A5 • W • 3A7

Calibration Fixtures

067-0503-00 Precision DC Divider, ×10/×100

Pictures

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Components

Some Parts Used in the 3A7