39,728
edits
No edit summary |
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=7A42| | |||
summary=350 MHz four-channel logic triggered amplifier| | summary=350 MHz four-channel logic triggered amplifier| | ||
image=Tek-7a42-crop.jpg | | image=Tek-7a42-crop.jpg | | ||
Line 6: | Line 6: | ||
introduced=1984 | | introduced=1984 | | ||
discontinued=1990 | | discontinued=1990 | | ||
series= | series=7000-series scopes| | ||
manuals= | manuals= | ||
* [https://w140.com/tek_7a42_service1_ocr.pdf 7A42 Service Vol. 1 (PDF)] | * [https://w140.com/tek_7a42_service1_ocr.pdf 7A42 Service Vol. 1 (PDF)] | ||
* [https://w140.com/tek_7a42_service2_ocr.pdf 7A42 Service Vol. 2 (PDF)] | * [https://w140.com/tek_7a42_service2_ocr.pdf 7A42 Service Vol. 2 (PDF)] | ||
* [[Media:Tek 7a42 advanced triggering techniques.pdf | 7A42 Advanced Triggering Techniques]] | * [[Media:Tek 7a42 advanced triggering techniques.pdf|7A42 Advanced Triggering Techniques]] | ||
* [[Media:070-4285-00.pdf|7A42 Operators Manual (PDF, manual needed)]] | * [[Media:070-4285-00.pdf|7A42 Operators Manual (PDF, manual needed)]] | ||
<small> | <small> | ||
Line 20: | Line 20: | ||
}} | }} | ||
The '''Tektronix 7A42''' is a four-channel 350 MHz plug-in for [[7000-series scopes]]. | The '''Tektronix 7A42''' is a four-channel 350 MHz plug-in for [[7000-series scopes]]. | ||
It was specifically designed for logic signals (TTL, ECL, CMOS) and supports triggering based on Boolean conditions of the four inputs. | It was specifically designed for logic signals (TTL, ECL, CMOS) and supports triggering based on Boolean conditions of the four inputs. | ||
Line 28: | Line 28: | ||
The input V/Div setting can only be seen in the mainframe's readout. | The input V/Div setting can only be seen in the mainframe's readout. | ||
Tektronix recommended the [[P6131]], | Tektronix recommended the [[P6131]], 300 MHz, 10 MΩ ×10 probe, and the [[P6230]], 1.5 GHz, 450/50 Ω ×10, variable-offset probe for ECL circuits. | ||
The [[067-1155-99]] calibration fixture is specific to the 7A42. | The [[067-1155-99]] calibration fixture is specific to the 7A42. | ||
Line 58: | Line 58: | ||
The 7A42 contains its own switch mode PSU, based on an SG3524 controller, that generates +5 V, −2 V and −5 V from the mainframe's ±50 V rails. | The 7A42 contains its own switch mode PSU, based on an SG3524 controller, that generates +5 V, −2 V and −5 V from the mainframe's ±50 V rails. | ||
==See | ==See also== | ||
* [[067-1155-99]] | * [[067-1155-99]] | ||
* [[A6701]] | * [[A6701]] |