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7904: Difference between revisions
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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). | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 500 MHz }} | {{Spec | Bandwidth | 500 MHz }} | ||
| Line 53: | Line 52: | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | |||
! Year | ! Year | ||
! 1972 | ! 1972 | ||
! 1976 | |||
! 1980 | ! 1980 | ||
! 1984 | ! 1984 | ||
| Line 60: | Line 61: | ||
|- | |- | ||
! Model | ! Model | ||
| | |||
|align=center| 7904 | |||
|align=center| 7904 | |align=center| 7904 | ||
|align=center| 7904 | |align=center| 7904 | ||
| Line 65: | Line 68: | ||
|align=center| 7904A | |align=center| 7904A | ||
|- | |- | ||
!rowspan=2| Mainframe only | |||
! Catalog price | ! Catalog price | ||
|align=right| $2,900 | |align=right| $2,900 | ||
|align=right| $4,100 | |||
|align=right| $6,265 | |align=right| $6,265 | ||
|align=right| $8,810 | |align=right| $8,810 | ||
| Line 73: | Line 78: | ||
! 2014 value | ! 2014 value | ||
|align=right| $16,500 | |align=right| $16,500 | ||
|align=right| $17,150 | |||
|align=right| $18,080 | |align=right| $18,080 | ||
|align=right| $20,170 | |align=right| $20,170 | ||
|align=right| $23,200 | |align=right| $23,200 | ||
|- | |- | ||
!rowspan=2| Mainframe with [[7A19]],<br />7A19 Opt. 04, [[7B92]] | |||
! Catalog price | |||
|align=right| $5,500 | |||
|align=right| $7,765 | |||
|align=right| $12,015 | |||
|align=right| $17,425 | |||
|align=right| $24,190 | |||
|- | |||
! 2014 value | |||
|align=right| $31,320 | |||
|align=right| $32,480 | |||
|align=right| $34,710 | |||
|align=right| $39,920 | |||
|align=right| $44,050 | |||
|} | |} | ||