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===Options=== | ===Options=== | ||
Due to the long production time of the 7603 many options were available. As some options became standard (e.g. built-in fan) some numbers where assigned twice. Later models were equipped with an IEC socket, making all A''x'' options obsolete. | |||
<div style="column-count:4;-moz-column-count:4;-webkit-column-count:4"> | <div style="column-count:4;-moz-column-count:4;-webkit-column-count:4"> | ||
* Opt.1: Without readout (= 7603N) | * Opt.1: Without readout (= 7603N) | ||
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* Opt.4/Opt.13: Maximum-brightness CRT with reduced area | * Opt.4/Opt.13: Maximum-brightness CRT with reduced area | ||
* Opt.5: Fan | * Opt.5: Fan | ||
* Opt.5 (later models): 400 Hz line frequency | |||
* Opt.6: Spectrum analyzer graticule | * Opt.6: Spectrum analyzer graticule | ||
* Opt.7: Without Signals Out | * Opt.7: Without Signals Out | ||
* Opt.8: P11 phosphor | * Opt.8: P11 phosphor | ||
* Opt.8 (later models): protective front panel cover, 7603 only | |||
* Opt.11S: Ruggedized variant AN/USM 281C, specified at 50 MHz | * Opt.11S: Ruggedized variant AN/USM 281C, specified at 50 MHz | ||
* Opt.20: Rear GPIB socket for [[7D20]], removes +Sawtooth, +Gate, vertical signal outputs, R7603 only | |||
* Opt.76: P7 phosphor | |||
* Opt.77: P7 phosphor with spectrum analyzer graticule | |||
* Opt.78: P11 phosphor | |||
</div> | </div> | ||
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