7B85: Difference between revisions

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(new high-res photos)
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===Hardware===
===Hardware===
<gallery>  
<gallery>  
File:7b85 left rear.jpg|Left rear
Tek 7b85 front.jpg         | Front
File:7b85 left front.jpg|Left front
7b85-left.jpg             | 7B85, left side
File:7b85 right front.jpg|Right front
7b85-left-del-removed.jpg | 7B85, left side, delay board removed
File:7b85 right rear.jpg|Right rear
7b85-right.jpg             | 7B85, right side
Tek-7b15-vs-7b85-left.jpg  | Family resemblance: 7B15 (top) vs. 7B85 (bottom).  Left side.
Tek-7b15-vs-7b85-left.jpg  | Family resemblance: 7B15 (top) vs. 7B85 (bottom).  Left side.
Tek-7b15-vs-7b85-right.jpg | Family resemblance: 7B15 (top) vs. 7B85 (bottom).  Right side.
Tek-7b15-vs-7b85-right.jpg | Family resemblance: 7B15 (top) vs. 7B85 (bottom).  Right side.
7b85 left rear.jpg        | Left rear
7b85 left front.jpg        | Left front
7b85 right front.jpg      | Right front
7b85 right rear.jpg        | Right rear
</gallery>  
</gallery>  


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Horizontal mode is set to alternating to show the pulse signal being triggered (A) and the delayed/magnified part (B).
Horizontal mode is set to alternating to show the pulse signal being triggered (A) and the delayed/magnified part (B).
<gallery>  
<gallery>  
File:7b85-risetime-5n.jpg  ‎| Measuring rise time of a pulse.  Delayed signal is scaled for 0-100% on graticule.  Delay time is adjusted so the trace crosses the 10% level on the center line.  Delta time is adjusted to so the delta-delayed trace crosses 90% on the same vertical line.  Delta time readout indicates rise time directly.
7b85-risetime-5n.jpg  ‎| Measuring rise time of a pulse.  Delayed signal is scaled for 0-100% on graticule.  Delay time is adjusted so the trace crosses the 10% level on the center line.  Delta time is adjusted to so the delta-delayed trace crosses 90% on the same vertical line.  Delta time readout indicates rise time directly.
File:7b85-risetime-10n.jpg | Measuring rise time of a pulse.  Same as before, rise time increased to 10 ns (HP8112A generator).
7b85-risetime-10n.jpg | Measuring rise time of a pulse.  Same as before, rise time increased to 10 ns (HP8112A generator).
File:7b85-pulse-width.jpg  ‎| Pulse width measurement.  Delayed signal and delta-delayed trace cross at 50%.  Delta time readout indicates pulse width directly.
7b85-pulse-width.jpg  ‎| Pulse width measurement.  Delayed signal and delta-delayed trace cross at 50%.  Delta time readout indicates pulse width directly.
File:7b85-period-1.jpg | Pulse period measurement.  Delta time is adjusted to overlay the delayed trace with one delayed by an additional period. In this picture, the two traces do not yet overlay exactly.
7b85-period-1.jpg | Pulse period measurement.  Delta time is adjusted to overlay the delayed trace with one delayed by an additional period. In this picture, the two traces do not yet overlay exactly.
File:7b85-period-2.jpg | Pulse period measurement.  Delayed trace overlays with one delayed by an additional period, delta time reads pulse period.
7b85-period-2.jpg | Pulse period measurement.  Delayed trace overlays with one delayed by an additional period, delta time reads pulse period.
</gallery>  
</gallery>