7A42

The Tektronix 7A42 is a four-channel 350 MHz plug-in for 7000-series scopes.

{{{manufacturer}}} Vertical Amplifier
350 MHz four-channel logic triggered amplifier 7A42 front view Compatible with [[7000-series scopes]] Produced from {{{introduced}}} to {{{discontinued}}} Manuals 7A42 service manual (PDF) (All manuals in PDF format unless noted otherwise) [[Category:Introduced in {{{introduced}}}]]

It was specifically designed for logic signals (TTL, ECL, CMOS) and supports triggering based on Boolean conditions of the four inputs.

A fifth trace, "Trigger View", displays the trigger function output or external clock input.

Specifications

Bandwidth	350 MHz
Deflection	0.1 / 0.2 / 0.5 V/Div (TTL mode) 20 / 50 / 100 mV/Div (ECL mode) each direct or through 10:1 probe
Input impedance	1MΩ or 50 Ω
Max. input voltage	at 1 MΩ: 25 V DC+peak AC below 36 MHz, down to 3 V AC at 300 MHz at 50Ω: 5 V RMS during any 1 ms interval
Trigger level	-1.27 to +1.28 V (TTL mode) in 10 mV steps -254 mV to +256 mV (ECL mode) in 2 mV steps (or ×10)
Hysteresis	40 mV (TTL), 8 mV (ECL) (or ×10)
Features	NiCd battery to preserve front-panel control status
Weight	2.8 kg / 6.2 lb