7A24: Difference between revisions

From TekWiki
Jump to navigation Jump to search
No edit summary
 
(13 intermediate revisions by one other user not shown)
Line 1: Line 1:
{{Plugin Sidebar 2 |
{{Plugin Sidebar  
title=Tektronix 7A24 |
|manufacturer=Tektronix
summary=400 MHz dual channel vertical amplifier |
|series=7000-series scopes
image=7a24 front.jpg |
|type=7A24  
caption=7A24 front panel |
|summary=400 MHz dual channel vertical amplifier  
introduced=1974 |
|image=7a24 front.jpg  
discontinued=1991 |
|caption=7A24 front panel  
series=[[7000-series scopes]] |
|introduced=1974  
manuals=
|discontinued=1991  
* [http://bama.edebris.com/download/tek/7a24/tek-7a24.pdf Tektronix 7A24 Manual (PDF)]
|designers=Tom Rousseau
* [http://w140.com/smb/7a24_sm.pdf Tektronix 7A24 Manual (OCR, PDF)]
|manuals=
* [[Media:070-1485-00.pdf|Tektronix 7A24 Manual]] (early version)
* [[Media:070-2391-00.pdf|Tektronix 7A24 Manual]] (later version SN B103000+, OCR)
}}
}}
The '''Tektronix 7A24''' is a 400 MHz dual-channel vertical plug-in for [[7000-series scopes]] with (fused) 50 Ω [[BNC]] inputs.  It is the fastest multi-channel plug-in available for the 7000 series.
It was designed by [[Tom Rousseau]]. 
Unlike most other plug-ins, it does not offer AC input coupling.


The '''Tektronix 7A24''' is a 400 MHz dual-channel vertical plug-in for [[7000-series scopes]] with (fused) 50 Ω [[BNC]] inputs.
 
A single-channel version was planned as the [[7A25]] but did not make it into production.


The 7A24 would typically have been used in [[7834]], [[7844]] or [[7854]] mainframes.
The 7A24 would typically have been used in [[7834]], [[7844]] or [[7854]] mainframes.
Line 20: Line 26:


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Bandwidth | 400 MHz (71xx) / 350 MHz (79xx) / 300 MHz (78xx) }}
{{Spec | Bandwidth       | 400 MHz (71xx) / 350 MHz (79xx) / 300 MHz (78xx) }}
{{Spec | Deflection | 5 mV/Div to 1 V/Div (1–2–5) }}
{{Spec | Deflection     | 5 mV/Div to 1 V/Div (1–2–5), variable ×2.5 (up to 2.5 V/Div) }}
{{Spec | Input impedance | 50 Ω }}
{{Spec | Input impedance | 50 Ω }}
{{Spec | Maximum input | 5 V (0.5 W) - no damage below 10 V (2 W) }}
{{Spec | Maximum input   | 5 V (0.5 W) − no damage below 10 V (2 W) }}
{{Spec | Timing | Delay difference between channels < 200 ps }}
{{Spec | Timing         | Delay difference between channels <200 ps }}
{{EndSpecs}}
{{EndSpecs}}


==Internals==
==Internals==


The 7A24 uses the Tek-made differential amplifier [[155-0078-10]].
The 7A24's input attenuators are similar to that in the [[7A19]], using replaceable ceramic
attenuator modules held to the switching PCB using steel springs.
 
The amplifier is built using the Tek-made differential amplifier [[155-0078-00|155-0078-xx]] (four units per channel in early, five in late versions; various grades). 
In the 5 mV/Div range only, the amplifier gain is doubled electronically.
The signal trace layout on the PCB is designed to provide [[T-coil peaking]].  


The 7A24 does not use the ±50 V supplies provided by the mainframe.
The 7A24 does not use the ±50 V supplies provided by the mainframe.
Line 35: Line 46:
==Links==
==Links==


* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_amplifier/amplifier_7A24.htm Tek 7A24 page @ amplifier.cd]
* [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_amplifier/amplifier_7A24.htm Tek 7A24 page @ amplifier.cd]
* [http://www.barrytech.com/tektronix/tek7000/tek7a24.html Tek 7A24 page @ barrytech.com]
* [http://www.barrytech.com/tektronix/tek7000/tek7a24.html Tek 7A24 page @ barrytech.com]
{{PatentLinks|7A24}}


==Pictures==
==Pictures==
Line 44: Line 56:
Tek 7a24 2.jpg
Tek 7a24 2.jpg
Tek 7a24 3.jpg
Tek 7a24 3.jpg
7a24 front.jpg | Front
7a24 front.jpg       | Front
7a24 frontend.jpg | Attenuator switches
7a24-left.jpg        | Left side (later version)
7a24 left board.jpg |Amplifier board
7a24-right.jpg      | Right side (later version)
7a24 frontend.jpg   | Attenuator switches
7a24 left board.jpg | Amplifier board
7a24 right front.jpg | Right front
7a24 right front.jpg | Right front
7a24 right rear.jpg | Right rear
7a24 right rear.jpg | Right rear
7a24-signal-out.jpg | [[Tektronix Cartoons | Cartoon]] in schematic: Signal Out
7a24-signal-out.jpg | [[Tektronix Cartoons|Cartoon]] in schematic: Signal Out
</gallery>
</gallery>


==Components==
{{Parts|7A24}}


[[Category:7000 series vertical plugins]]
[[Category:7000 series vertical plugins]]

Latest revision as of 16:01, 18 August 2024

Tektronix 7A24
400 MHz dual channel vertical amplifier
7A24 front panel

Compatible with 7000-series scopes

Produced from 1974 to 1991

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 7A24 is a 400 MHz dual-channel vertical plug-in for 7000-series scopes with (fused) 50 Ω BNC inputs. It is the fastest multi-channel plug-in available for the 7000 series. It was designed by Tom Rousseau. Unlike most other plug-ins, it does not offer AC input coupling.


A single-channel version was planned as the 7A25 but did not make it into production.

The 7A24 would typically have been used in 7834, 7844 or 7854 mainframes. The recommended probes were the P6056 and P6057.

The 75 MHz 7A18 and 200 MHz 7A26 share the same front panel layout and operation (but have 1 MΩ inputs).

Key Specifications

Bandwidth 400 MHz (71xx) / 350 MHz (79xx) / 300 MHz (78xx)
Deflection 5 mV/Div to 1 V/Div (1–2–5), variable ×2.5 (up to 2.5 V/Div)
Input impedance 50 Ω
Maximum input 5 V (0.5 W) − no damage below 10 V (2 W)
Timing Delay difference between channels <200 ps

Internals

The 7A24's input attenuators are similar to that in the 7A19, using replaceable ceramic attenuator modules held to the switching PCB using steel springs.

The amplifier is built using the Tek-made differential amplifier 155-0078-xx (four units per channel in early, five in late versions; various grades). In the 5 mV/Div range only, the amplifier gain is doubled electronically. The signal trace layout on the PCB is designed to provide T-coil peaking.

The 7A24 does not use the ±50 V supplies provided by the mainframe.

Links

Patents that may apply to 7A24

Page Title Inventors Filing date Grant date Links
Patent US 3562464A Cam actuated switch having movable and fixed contacts on circuit board Howard Vollum • Willem H Verhoef • Tony Sprando 1968-10-07 1971-02-09 Cam switches • 2101 • 2701 • 2703 • 432 • 434 • 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7B10 • 7B15 • 7B50 • 7B51 • 7B52 • 7B53A • 7B50A • 7B70 • 7B71 • 7B80 • 7B85 • 7B87 • 7B92 • 7B92A • 7D01 • 7D12 • 7D15 • 7J20 • 7S12 • 7T11 • 7T11A • AM503
Patent US 3719788A Switch having ganged contacts mounted on opposite sides of circuit board Ken Holland • Tony Sprando 1971-02-04 1973-03-06 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7D15
Patent US 3753170A Step attenuator apparatus having attenuator stages selectively connected in cascade by cam actuated switches Ken Holland 1971-02-10 1973-08-14 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26
Patent US 3875542A High frequency fuse Ken Holland • John Alan Roberts 1973-09-10 1975-04-01 7A19 • 7A24
Patent US 3900711A Electrical contactor assembly for high frequency applications Ken Holland 1974-02-04 1975-08-19 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7D15 • AM503

Pictures

  • Front

    Front

  • Left side (later version)

    Left side (later version)

  • Right side (later version)

    Right side (later version)

  • Attenuator switches

    Attenuator switches

  • Amplifier board

    Amplifier board

  • Right front

    Right front

  • Right rear

    Right rear

  • Cartoon in schematic: Signal Out

    Cartoon in schematic: Signal Out

Components

Some Parts Used in the 7A24

Part Part Number(s) Class Description Used in
155-0078-00 155-0078-xx • 155-0273-00 • 155-0274-00 Monolithic integrated circuit broadband amplifier 464 • 465 • 466 • 468 • 475 • 475A • 475M • 485 • 7834 • 7844 • 7854 • 7904 • R7903 • R7912 • 7912AD • 7912HB • 7104 • 7A16A • 7A16P • 7A24 • 7A26 • 7A42 • 067-0587-01 • 067-0680-00 • AM503 • PG502 • PG508 • DC510 • DC5010 • FG5010
Retrieved from "https://w140.com/tekwiki/index.php?title=7A24&oldid=96740"