Difference between revisions of "S-2"

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==Repair issues==
 
==Repair issues==
  
The input should always be terminated when not in use because the [[sampling diodes]] are easily damaged by excessive inputs or static discharge.  See that article for possible replacements.
+
*The input should always be terminated when not in use because the [[sampling diodes]] are easily damaged by excessive inputs or static discharge.  See that article for possible replacements.
 +
*The ground contact of input termination resistor R4 can become intermittent, causing the input impedance to go high or fluctuating. The cure is to disassemble the sampler incuding the sampler board covers, and then carefully bend the ground tabs of the input termination resistor outward.
  
 
==Pictures==
 
==Pictures==
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Tek s2 amp side.jpg | S-2 interior, amplifier board side
 
Tek s2 amp side.jpg | S-2 interior, amplifier board side
 
Tek s2 bridge in place.jpg | Sampling diodes in place
 
Tek s2 bridge in place.jpg | Sampling diodes in place
Tek s2 input term r4.jpg | Input termination resistor
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Tek s2 input term r4.jpg | Input termination resistor R4
 
Tek s2 sampler r.jpg | Sampler board, right
 
Tek s2 sampler r.jpg | Sampler board, right
 
Tek s2 sampler l.jpg | Sampler board, left
 
Tek s2 sampler l.jpg | Sampler board, left

Revision as of 15:27, 25 March 2020

Tektronix S-2
Sampling Head
S-2 head

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

Produced from 1967 to 1989

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix S-2 Sampling Head plug-in provides a single GR-874 50 Ω input with a 75 ps risetime.

The S-2 can be used in the 7000 series and 3S series of sampling plug-ins. It provides an internal trigger pickoff signal for internal triggering. Noise is specified as less than 10 mV.

When the S-2 was first introduced, the rise-time specification was 50 ps, but that was not achieved in practice, so the rise-time specification was revised to be 75 ps.

The interface between the GR-874 connector and the printed circuit board is described in US Patent 3,426,311.

Specifications

Rise time 75 ps
Bandwidth 4.66 GHz eq.
Input voltage −1 to +1 V (max. −5 to +5)

Repair issues

  • The input should always be terminated when not in use because the sampling diodes are easily damaged by excessive inputs or static discharge. See that article for possible replacements.
  • The ground contact of input termination resistor R4 can become intermittent, causing the input impedance to go high or fluctuating. The cure is to disassemble the sampler incuding the sampler board covers, and then carefully bend the ground tabs of the input termination resistor outward.

Pictures