7844: Difference between revisions

Revision as of 08:10, 4 October 2014

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400 MHz dual-beam non-storage mainframe Tektronix 7844, front view with 7A26, 7A19(?), 7B80 and 7B85 Produced from 1975 to 1988 Manuals Tek 7844 Service Manual at BAMA (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 7844 is a 400 MHz dual-beam CRT oscilloscope that takes two 7000-series vertical plug-ins and two 7000-series horizontal plug-ins.

Versions include the 7844 bench-top lab scope and R7844 rack-mount model.

A typical configuration might have included 7A24 or 7A19 amplifiers, a 7B80 and a 7B85 timebase.

Specifications

Internals

The 7844's CRT has distributed vertical deflection plates.

The power supply is a resonant switch-mode inverter with linear post-regulation, similar to the one in the 7904, unlike which the 7844 does have a fan.

Links

Pictures

Simultaneous time and frequency domain display using a 7A26 amplifier, 7B92A time base, and 7L5 Spectrum Analyzer
Tektronix 7844
Tektronix R7844

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 * [http://amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/7844.html Tek 7844 page at amplifier.cd] and a [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/rep-und-kal/7844_reparatur_engl.html repair report (switch-mode PSU)]
 * [http://www.barrytech.com/tektronix/tek7000/tek7844.html Tek 7844 @ barrytech.com]
+* [http://www.firstpr.com.au/tequip/R7844/ R7844 page with frequency response measurements]
 ==Pictures==