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7403N: Difference between revisions
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{{Oscilloscope Sidebar| | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |||
image= | |series=7000-series scopes | ||
caption=Tektronix 7403, front view| | |model=7403N | ||
introduced=1970 | | |summary=65 MHz non-storage mainframe | ||
discontinued=1975 | | |image=Tek_7403n_4.jpg | ||
|caption=Tektronix 7403, front view | |||
manuals= | |introduced=1970 | ||
* [ | |discontinued=1975 | ||
|designers=Phil Crosby;Bob Shand | |||
|manuals= | |||
* [[Media:070-1124-00.pdf|Tektronix 7403N Manual]] | |||
* [[Media:070-1124-00 color pages.pdf|7403N schematics pages, color]] | |||
}} | }} | ||
The '''Tektronix 7403N''' is a 65 MHz oscilloscope mainframe that takes two 7000-series vertical plug-ins | The '''Tektronix 7403N''' is a 65 MHz oscilloscope mainframe that takes two 7000-series vertical plug-ins and one 7000-series horizontal plug-in. | ||
and one 7000-series horizontal plug-in. It has a large CRT (8 × 10 divisions @ 1.22 cm each, | It has a large CRT (8 × 10 divisions @ 1.22 cm each, [[154-0640-00|154-0640-xx]] or [[154-0672-00|154-0672-xx]] tubes). There is no readout system. | ||
[[154-0640-00|154-0640-xx]] or [[154-0672-00|154-0672-xx]] tubes). | |||
There is no readout system. | |||
There two versions | There are two versions, the benchtop 7403N with the CRT above the plug-ins, and a rackmount version, the R7403N, with the CRT to the left of the plug-ins. | ||
and a rackmount version, the R7403N, with the CRT to the left of the plug-ins. | |||
The 7403 was designed from the ground up. | |||
The design team, led by [[Phil Crosby]], decided to use a discrete transistor vertical output amplifier rather than a hybrid on beryllium oxide. | |||
The output stage approximated a 3 pole [[MFED response]] with an additional real pole closer to the origin. | |||
Since the DC requirement was 3 screen diameters, the gain at the –3 dB point could be substantially less, meaning that the load resistor (and output stage dissipation) could be reduced, allowing the design to meet scan bandwidth and corner shift criteria with substantially reduced power dissipation. | |||
The 7403N was discontinued around 1975, having been superseded largely by the popular [[7603]] introduced in 1973. | The 7403N was discontinued around 1975, having been superseded largely by the popular [[7603]] introduced in 1973. | ||
In 1974, the 7403N had a list price (without plug-ins) of $950. | In 1974, the 7403N had a list price (without plug-ins) of $950. In the same year, the 7603 was $1600. | ||
In the same year, the 7603 was $1600. | |||
{{ | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 65 MHz; 60 MHz with [[7A11]], [[7A16]] }} | |||
{{Spec | Fastest calibrated sweep | 5 ns/Div }} | |||
{{Spec | CRT | | |||
* Standard: P31 phosphor, 8 × 10 divisions of 1.22 cm (Tek [[T7400]]/[[154-0640-00]] tube) | |||
* Opt. ? : P11 phosphor, 8 × 10 divisions of 1.22 cm | |||
}} | |||
{{Spec | Calibrator | 40 mV, 400 mV, 4V into 1 MΩ}} | |||
{{Spec | Inputs | Ext. Z Axis, 2 V<sub>p-p</sub> }} | |||
{{Spec | Outputs | Camera power only}} | |||
{{Spec | Power | 100 / 110 / 120 / 200 / 220 / 240 V, +/- 10%, 50—440 Hz, max. 130 W }} | |||
{{Spec | Weight | 13.6 kg / 30 lb (instrument only) }} | |||
{{Spec | Operating Environment | 0°C – +50°C, < 15,000 ft }} | |||
{{EndSpecs}} | |||
The 7403N consumes a maximum of 130 watts and uses convection cooling, no fan. It weighs 30 pounds. | The 7403N consumes a maximum of 130 watts and uses convection cooling, no fan. It weighs 30 pounds. | ||
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Tek 7403n front.jpg | Tek 7403n front.jpg | ||
Tek 7403n ulf.jpg | Tek 7403n ulf.jpg | ||
Tek 7403n 4.jpg | |||
Tek 7403n 5.jpg | |||
Tek 7403n 6.jpg | |||
Tek 7403n 7.jpg | |||
Tek 7403 sine trace.jpeg|7403N trace | |||
Tek 7403N open left.jpg | |||
Tek 7403N open right.jpg | |||
Tek 7403N open top.jpg | |||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|7403N}} | |||
[[Category:7000 series non-storage mainframes]] | [[Category:7000 series non-storage mainframes]] | ||
[[Category:7000 series mainframes with linear power supplies]] | |||