7A24: Difference between revisions

Latest revision as of 10:59, 4 October 2024

Tektronix 7A24
400 MHz dual channel vertical amplifier 7A24 front panel Compatible with 7000-series scopes Produced from 1974 to 1991 Manuals Tektronix 7A24 Manual (early version) Tektronix 7A24 Manual (later version SN B103000+, OCR) (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

Tek 7A24 page @ amplifier.cd

Documents Referencing 7A24

(no results)

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 • 5A15N • 5A18N • 5A20N • 5A21N • 5A38 • 5A45 • 5B10N • 5B12N • 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 • AF501 • AM502 • AM503 • DC502 • DC503 • DC504 • DC505 • DM501 • DM502 • FG501 • FG501A • FG502 • FG503 • FG504 • FG507 • PG501 • PG502 • PG505 • PG506 • PG506A • PG508 • TG501 • SC502 • SC503 • SC504
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 • PG506
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
Left side (later version)
Right side (later version)
Attenuator switches
Amplifier board
Right front
Right rear
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

@@ Line 1: / Line 1: @@
-{{Plugin Sidebar 2 |
+{{Plugin Sidebar
-manufacturer=Tektronix | type=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 (early version, PDF)]
+|designers=Tom Rousseau
-* [http://w140.com/smb/7a24_sm.pdf Tektronix 7A24 Manual (later version SN B103000+, 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&nbsp;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.
-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 75&nbsp;MHz [[7A18]] and 200&nbsp;MHz [[7A26]] share the same front panel layout and operation (but have 1 MΩ inputs).
+The 75 MHz [[7A18]] and 200 MHz [[7A26]] share the same front panel layout and operation (but have 1 MΩ inputs).
 {{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), variable ×2.5 (up to 2.5 V/Div) }}
+{{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 | 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}}
@@ Line 35: / Line 36: @@
 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
+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).
-per channel in early, five in late versions; various grades).  In the 5 mV/Div range only, the amplifier gain
+In the 5 mV/Div range only, the amplifier gain is doubled electronically.
-is doubled electronically. The signal trace layout on the PCB is designed to provide [[T-coil peaking]].
+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.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_amplifier/amplifier_7A24.htm Tek 7A24 page @ amplifier.cd]
+{{Documents|Link=7A24}}
-* [http://www.barrytech.com/tektronix/tek7000/tek7a24.html Tek 7A24 page @ barrytech.com]
+{{PatentLinks|7A24}}
 ==Pictures==
@@ Line 62: / Line 63: @@
 </gallery>
+==Components==
+{{Parts|7A24}}
 [[Category:7000 series vertical plugins]]