W

From TekWiki
Revision as of 16:58, 2 August 2017 by David Wise (talk | contribs)
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Template:Plugin Sidebar 2 The Tektronix Type W is a differential comparator plug-in amplifier for 500-series scopes. Its bandwidth varies from 23 MHz to 8 MHz depending on gain. Only modestly faster than its Type Z predecessor, Type W extends performance in terms of sensitivity, reaching 1 mV/div.

It achieves 20,000 to 1 common-mode rejection at DC and low frequencies. It has a built in precision variable voltage supply, "Vc", which is controlled by a ten-turn pot and can vary from either -1.1 V to +1.1 V or -11 V to +11 V.

Type W has two signal inputs, "A" and "B". A mode switch selects between displaying A-Vc, A-B, or Vc-B. The "A-B" mode is particularly useful for displaying the current in a sense resistor, while the other modes provide "slideback" measurements of small variations superimposed on a large constant.

An output of Vc is provided on the front panel of the Type W. Unlike the Z, Type W has two gain axes, a decade attenuator and a 1-2-5-10-20-50 selector, reminiscent of Type D from ten years before.

Type W is the only letter-series plug-in with an "infinite resistance" input mode selectable at the front panel. (Type 1A5 has an internal jumper that can be cut.)

In the letter-series timeline of differential comparators, Type W, introduced in 1965, follows Type Z and precedes Type 1A5.

Specifications

please add

Pictures