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S-4: Difference between revisions
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discontinued=1990 | | discontinued=1990 | | ||
manuals= | manuals= | ||
* [[Media:070-0896-01.pdf|Tektronix S-4 Instruction Manual, Revised OCT 1986 (OCR, PDF)]] | |||
* [http://w140.com/tek_s4.pdf Tektronix S-4 Manual, copyright 1969 (PDF)] | * [http://w140.com/tek_s4.pdf Tektronix S-4 Manual, copyright 1969 (PDF)] | ||
* [http://w140.com/tek_S4_1985.pdf Tektronix S-4 Manual, revised 1985 (PDF)] | * [http://w140.com/tek_S4_1985.pdf Tektronix S-4 Manual, revised 1985 (PDF)] | ||
* [http://w140.com/frye_s4_gate.pdf George Frye's Explanation of S-4 sampler in October 1968 Service Scope (PDF)] | * [http://w140.com/frye_s4_gate.pdf George Frye's Explanation of S-4 sampler in October 1968 Service Scope (PDF)] | ||
* [[Media:Tek s-4 fcp april 1969 - OCR.pdf|Tektronix S-4 Factory Calibration Procedure, April 1969 (PDF, OCR)]] | |||
}} | }} | ||
The '''Tektronix S-4''' is a sampling head for 7000- and 3S-series samplers. | The '''Tektronix S-4''' is a sampling head for 7000- and 3S-series samplers. | ||
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{{Spec | Bandwidth | 14.5 GHz }} | {{Spec | Bandwidth | 14.5 GHz }} | ||
{{Spec | Input impedance | 50 Ω (terminated [[SMA connector]])}} | {{Spec | Input impedance | 50 Ω (terminated [[SMA connector]])}} | ||
{{Spec | Input range | | {{Spec | Input range | 1 V<sub>p-p</sub> (operating) }} | ||
{{Spec | Maximum input | ±5 V max. non-destructive }} | |||
{{Spec | Noise | < 5 mV}} | {{Spec | Noise | < 5 mV}} | ||
{{Spec | Features | | {{Spec | Features | | ||
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==Internals== | ==Internals== | ||
The S-4 sampling gate is based upon a traveling wave trapped-charge transmission line | The [[Sampler#Six-Diode_Sampler|S-4 sampling gate]] is based upon a traveling wave trapped-charge transmission line | ||
in which the sampling window is set by the propagation time of a pulse edge through a thick-film transmission line. | in which the sampling window is set by the propagation time of a pulse edge through a thick-film transmission line. | ||
This technique requires only a sharp pulse edge rather than a precise pulse width, which is harder to generate. | This technique requires only a sharp pulse edge rather than a precise pulse width, which is harder to generate. | ||
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Tek-s-4.jpg | Tek-s-4.jpg | ||
Tek s4.jpg | Tek s4.jpg | ||
S4_top.jpg|Top view of the S4 plug-in | S4_top.jpg | Top view of the S4 plug-in | ||
S4_left.jpg|Left view | S4_left.jpg | Left view | ||
S4_right.jpg|Right view | S4_right.jpg |Right view | ||
S4 schem.png|Schematic | S4 schem.png | Schematic | ||
Tektronix-S4-sampler-board-strobe.jpg|Sampler board, strobe side | Tektronix-S4-sampler-board-strobe.jpg | Sampler board, strobe side | ||
Tektronix-S4-sampler-board-preamp.jpg|Sampler board, preamp side | Tektronix-S4-sampler-board-preamp.jpg | Sampler board, preamp side | ||
Tektronix-S4-sampler-board-hybrid.jpg|Sampler board, disassembled with parts orientation | Tektronix-S4-sampler-board-hybrid.jpg | Sampler board, disassembled with parts orientation | ||
Tektronix-S4-hybrid-internal.jpg|Microphotograph of sampler hybrid | Tektronix-S4-hybrid-internal.jpg | Microphotograph of sampler hybrid | ||
Tek s-4 in 7s11.jpg|S-4 in [[7S11]] | S-4_B15_prototype.JPG | S-4 B-prototype, no difference to standard S-4 | ||
7s11-s4.jpg | Tek s-4 in 7s11.jpg | S-4 in [[7S11]] | ||
7s11-s4.jpg | S-4 in [[7S11]] | |||
</gallery> | </gallery> | ||
[[Category:7000 and 3S series sampling heads]] | [[Category:7000 and 3S series sampling heads]] | ||