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S-6: Difference between revisions
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|image=Tek-s6-front.jpg | |image=Tek-s6-front.jpg | ||
|caption=S-6 head | |caption=S-6 head | ||
|introduced= | |introduced=1971 | ||
|discontinued=1990 | |discontinued=1990 | ||
|manuals= | |manuals= | ||
| Line 18: | Line 18: | ||
The S-6 provides two unterminated 50 Ω SMA connections in a loop-through configuration as is convenient for [[TDR]] applications. | The S-6 provides two unterminated 50 Ω SMA connections in a loop-through configuration as is convenient for [[TDR]] applications. | ||
It is | It is [[Media:42W-5850.pdf|strongly recommended to leave a termination resistor on the unit when unused]] to give some protection against electrostatic discharge. | ||
The S-6 does not provide a trigger pickoff signal. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Rise time | 30 ps }} | {{Spec | Rise time | 30 ps }} | ||
{{Spec | Bandwidth | 11.5 GHz }} | {{Spec | Bandwidth | 11.5 GHz }} | ||
{{Spec | | {{Spec | Input voltage | 1 V<sub>p-p</sub> (operating) }} | ||
{{Spec | Maximum input | ±5 V<sub>DC</sub> }} | |||
{{Spec | Maximum single sample step | 250 mV for less than 5% aberration}} | {{Spec | Maximum single sample step | 250 mV for less than 5% aberration}} | ||
{{Spec | Input impedance | 50 Ω (unterminated!) }} | {{Spec | Input impedance | 50 Ω (unterminated!) }} | ||
{{Spec | Noise | < 5 mV of noise }} | {{Spec | Noise | < 5 mV of noise }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Internals== | ==Internals== | ||
The S-6 is very similar to the [[S-4]] in that it uses a [[Sampler#Six-Diode_Sampler|6-diode traveling wave trapped-charge sampling gate]]. This gate is implemented in the [[155-0053-00]] hybrid. Since the S-6 is a feed-through sampling head, the blow-by compensation is implemented slightly differently using a 10 k resistor in the hybrid directly connected to the input signal. The S-6 replaces the discrete preamplifier of the [[S-4]] with two opamps from a [[155-0035-00]] quad opamp chip. The two other opamps are used to buffer the gate bias voltages. | The S-6 is very similar to the [[S-4]] in that it uses a [[Sampler#Six-Diode_Sampler|6-diode traveling wave trapped-charge sampling gate]]. This gate is implemented in the [[155-0053-00]] hybrid. Since the S-6 is a feed-through sampling head, the blow-by compensation is implemented slightly differently using a 10 k resistor in the hybrid directly connected to the input signal. | ||
The S-6 replaces the discrete preamplifier of the [[S-4]] with two opamps from a [[155-0035-00]] quad opamp chip. The two other opamps are used to buffer the gate bias voltages. | |||
==Links== | ==Links== | ||
* [http://jeroen.web.cern.ch/jeroen/S6/S6.shtml S-6 internal photo and simulation] | * [http://jeroen.web.cern.ch/jeroen/S6/S6.shtml S-6 internal photo and simulation] | ||
* [https://chome.nerpa.tech/measurements/repairing-tektronix-s-6-sampling-head/ Repairing an S-6 head] (with internal photos) | * [https://chome.nerpa.tech/measurements/repairing-tektronix-s-6-sampling-head/ Repairing an S-6 head] (with internal photos) | ||
* [ | * [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/7S12.htm S-6 @ amplifier.cd 7S12 page] | ||
* [http://www.barrytech.com/tektronix/tek7000/teks6.html S-6 @ barrytech.com] | * [http://www.barrytech.com/tektronix/tek7000/teks6.html S-6 @ barrytech.com] | ||
{{Documents|Link=S-6}} | {{Documents|Link=S-6}} | ||
==Prices== | ==Prices== | ||
1979: $1,345 (~$5, | 1979: $1,345 (~$5,600 in 2023 dollars) | ||
According to an [[Media:Tek Schottky Diodes Memo rot.pdf|internal memo]], | According to an [[Media:Tek Schottky Diodes Memo rot.pdf|internal memo]], annual sales were estimated at 225 units in 1979. | ||
==Pictures== | ==Pictures== | ||