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Difference between revisions of "S-1"

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Operating the sampling head without the input connector terminated by a 50 Ω resistor or coaxial  
 
Operating the sampling head without the input connector terminated by a 50 Ω resistor or coaxial  
 
cable will cause a vertical shift of the zero signal baseline by a few millivolts. This is caused by the  
 
cable will cause a vertical shift of the zero signal baseline by a few millivolts. This is caused by the  
strobe kickout signal being reflected from the open input connector, and orriving bock at the sampling  
+
strobe kickout signal being reflected from the open input connector, and arriving back at the sampling  
 
bridge while the bridge is conducting.
 
bridge while the bridge is conducting.
 
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S-52_s-1_rt_brighter.jpg | S-1 in a [[3S2]] sampler / [[567]] scope
 
S-52_s-1_rt_brighter.jpg | S-1 in a [[3S2]] sampler / [[567]] scope
 
Tek s1 sampler schematic.png|Tektronix S-1 sampler
 
Tek s1 sampler schematic.png|Tektronix S-1 sampler
 +
Tek 7s11 s-1.jpg|[[7S11]] with S-1
 
</gallery>
 
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Latest revision as of 22:57, 31 August 2019

Tektronix S-1
Sampling Head
S-1 head

Compatible with 3S2, 3S5, 3S6, 7S11, 7S12 Sampling Plugins

Produced from 1967 to 1989

Manuals
Manuals – Specifications – Links – Pictures

The S-1 sampling plug-in head provides a single GR-874 50 Ω input with a 350 ps rise-time.

The S-1 can be used with the 7000 series of sampling plug-ins, as well as the 3S series of sampling units.

Specifications

Rise time 350 ps
Bandwidth 1 GHz
Input amplitude −1 V to +1 V with ≤1 Vp-p signals
Maximum input ±5 VDC or sine of 10 Vp-p up to 10 MHz
Input impedance 50 Ω (GR-874)
Noise < 2 mV
Features trigger pickoff for internal triggering

Links

Internals

The S-1 uses a two-diode sampling gate which has relatively high "kick-out" (leakage of the strobe signal out of the input).

The manual cautions,

Operating the sampling head without the input connector terminated by a 50 Ω resistor or coaxial cable will cause a vertical shift of the zero signal baseline by a few millivolts. This is caused by the strobe kickout signal being reflected from the open input connector, and arriving back at the sampling bridge while the bridge is conducting.

The sampling bridge strobe signal is generated by an avalanche transistor followed by a step recovery diode.

Pictures