7B70: Difference between revisions
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==X-Y operation== | ==X-Y operation== | ||
The 7B70 has a dedicated switch to put it in "amplifier mode" for X-Y operation. In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. | The 7B70 has a dedicated switch to put it in "amplifier mode" for X-Y operation. In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. | ||
In amplifier mode, gain can be varied using an uncalibrated potentiometer. | In amplifier mode, gain can be varied using an uncalibrated potentiometer. | ||
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* [http://www.barrytech.com/tektronix/tek7000/tek7b70.html Tek 7B70 @ barrytech.com] | * [http://www.barrytech.com/tektronix/tek7000/tek7b70.html Tek 7B70 @ barrytech.com] | ||
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_timebase/timebase_7B70.htm Tek 7B70 @ amplifier.cd] | * [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_timebase/timebase_7B70.htm Tek 7B70 @ amplifier.cd] | ||
==Internals== | |||
The 7B70 contains three 148-0034-00 [[miniature relays]]. | |||
==Pictures== | ==Pictures== | ||
Revision as of 10:41, 9 September 2018
Template:Plugin Sidebar 2 The Tektronix 7B70 is a 200 MHz time-base plug-in for 7000-series scopes. It has no delay function. For delayed-sweep applications, the 7B70 is operated in conjunction with the model 7B71 delaying timebase. The 7B70/7B71 were primarily intended for the 7704 mainframe.
The 7B71/7B70 were superseded by the 7B85/7B80 pair (400 MHz) in 1976.
Key Specifications
| Sweep rate | 2 ns/div to 5 s/div, optional ×10 magnifier |
|---|---|
| Trigger modes | P-P auto, auto, norm, single |
X-Y operation
The 7B70 has a dedicated switch to put it in "amplifier mode" for X-Y operation. In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. In amplifier mode, gain can be varied using an uncalibrated potentiometer.
Links
- Troubleshooting the 7B70 and 7B71 timebases. Tekscope Vol.6 No.4 Sept/Oct 1974
- Tek 7B70 @ barrytech.com
- Tek 7B70 @ amplifier.cd
Internals
The 7B70 contains three 148-0034-00 miniature relays.
Pictures
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7B70, front panel
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7B70, left side
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7B70, right side
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