7904: Difference between revisions

236 bytes added ,  17 June 2015
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===7904A differences===
===7904A differences===
The 7904 had an elaborate 5-decade built-in calibrator with variable rate that was dropped from the 7904A.  In the 7904A, The Control Illumination switch moved to the rear panel, and the [[7000 series readout system|readout system]] gained a pulsed mode in which it is synchronized with the sweep instead of interrupting the display at random times.  This pulsed mode is not compatible with all time base plug-ins (see manual p. 1-12).
The 7904 had an elaborate 5-decade built-in calibrator with variable rate that was dropped from the 7904A.  In the 7904A, The Control Illumination switch moved to the rear panel, and the [[7000 series readout system|readout system]] gained a pulsed mode in which it is synchronized with the sweep instead of interrupting the display at random times.  This pulsed mode is not compatible with all time base plug-ins (see manual p. 1-12).
===Options===
<div style="column-count:4;-moz-column-count:4;-webkit-column-count:4">
* Opt.2: X-Y delay compensation network
* Opt.3: Extra EMI shielding
* Opt.4: Maximum-brightness CRT with reduced area
* Opt.78: P11 phosphor
</div>


==Operation==
==Operation==