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The Tektronix 7A24 is a 400MHz dual-channel vertical plug-in for [[7000-series scopes]].
{{Plugin Sidebar
It has 50-ohm [[Connectors#BNC|BNC]] inputs.
|manufacturer=Tektronix
The inputs are fused.
|series=7000-series scopes
|type=7A24
|summary=400 MHz dual channel vertical amplifier
|image=7a24 front.jpg
|caption=7A24 front panel
|introduced=1974
|discontinued=1991
|designers=Tom Rousseau
|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.  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 recommended probes were the [[P6056]] and [[P6057]].


* [http://bama.edebris.com/download/tek/7a24/tek-7a24.pdf Tektronix 7A24 Manual (PDF)]
The 75 MHz [[7A18]] and 200 MHz [[7A26]] share the same front panel layout and operation (but have 1 MΩ inputs).
* [http://w140.com/smb/7a24_sm.pdf Tektronix 7A24 Manual (OCR, PDF)]
 
{{BeginSpecs}}
{{Spec | Bandwidth      | 400 MHz (71xx) / 350 MHz (79xx) / 300 MHz (78xx) }}
{{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 | Maximum input  | 5 V (0.5 W) − no damage below 10 V (2 W) }}
{{Spec | Timing          | Delay difference between channels <200 ps }}
{{EndSpecs}}
 
==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 [[155-0078-00|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.
 
==Links==
 
* [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]
 
==Pictures==


<gallery>
<gallery>
Image:Tek 7a24 1.jpg
Tek 7a24 1.jpg
Image:Tek 7a24 2.jpg
Tek 7a24 2.jpg
Image:Tek 7a24 3.jpg
Tek 7a24 3.jpg
File:7a24 front.jpg|Front
7a24 front.jpg       | Front
File:7a24 frontend.jpg|Attenuator switches
7a24-left.jpg        | Left side (later version)
File:7a24 left board.jpg|Aplifier board
7a24-right.jpg      | Right side (later version)
File:7a24 right front.jpgRight front
7a24 frontend.jpg   | Attenuator switches
File:7a24 right rear.jpg|Right rear
7a24 left board.jpg | Amplifier board
7a24 right front.jpg | Right front
7a24 right rear.jpg | Right rear
7a24-signal-out.jpg  | [[Tektronix Cartoons|Cartoon]] in schematic: Signal Out
</gallery>
</gallery>
==Components==
{{Parts|7A24}}
[[Category:7000 series vertical plugins]]
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