7B70: Difference between revisions
(manual links changed to internal docs) |
m (clean up, replaced: {{Plugin Sidebar 2| → {{Plugin Sidebar |, title=Tektronix → manufacturer=Tektronix | type=, series=7000-series scopes| → series=7000-series scopes|) |
||
| Line 1: | Line 1: | ||
{{Plugin Sidebar | {{Plugin Sidebar | | ||
manufacturer=Tektronix | type=7B70| | |||
summary=200 MHz Timebase| | summary=200 MHz Timebase | | ||
image=Tek-7b70-front.jpg | | image=Tek-7b70-front.jpg | | ||
caption=Tektronix 7B70| | caption=Tektronix 7B70| | ||
introduced=1969| | introduced=1969| | ||
discontinued=1975| | discontinued=1975| | ||
series= | series=7000-series scopes| | ||
manuals= | manuals= | ||
* [[Media:070-0982-00.pdf|Tektronix 7B70 Manual]] (OCR, PDF) | * [[Media:070-0982-00.pdf|Tektronix 7B70 Manual]] (OCR, PDF) | ||
| Line 13: | Line 13: | ||
</small> | </small> | ||
}} | }} | ||
The '''Tektronix 7B70''' is a | 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 | 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 | in conjunction with the model [[7B71]] delaying timebase. The 7B70/7B71 were | ||
| Line 20: | Line 20: | ||
The task of designing the 7B70 was inherited and completed by [[Murlan Kaufman]]. | The task of designing the 7B70 was inherited and completed by [[Murlan Kaufman]]. | ||
The 7B71/7B70 were superseded by the [[7B85]]/[[7B80]] pair ( | The 7B71/7B70 were superseded by the [[7B85]]/[[7B80]] pair (400 MHz) in 1976. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
| Line 33: | Line 33: | ||
==Links== | ==Links== | ||
* [[Media: | * [[Media:Tekscope 1974 V6 N4.pdf|Troubleshooting the 7B70 and 7B71 timebases. Tekscope Vol.6 No.4 Sept/Oct 1974]] | ||
* [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== | ==Internals== | ||
The 7B70 contains five 148-0034-00 [[miniature relays]] and one 148-0035-00. It also contains one [[152-0154-00]] and two [[152-0125-00]] [[ | The 7B70 contains five 148-0034-00 [[miniature relays]] and one 148-0035-00. It also contains one [[152-0154-00]] and two [[152-0125-00]] [[tunnel diodes]]. | ||
==Pictures== | ==Pictures== | ||
Revision as of 03:47, 9 August 2021
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 task of designing the 7B70 was inherited and completed by Murlan Kaufman.
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 five 148-0034-00 miniature relays and one 148-0035-00. It also contains one 152-0154-00 and two 152-0125-00 tunnel diodes.
Pictures
-
7B70, front panel
-
7B70, left side
-
7B70, right side
-
