7A12: Difference between revisions

7A12 (view source)

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-{{Plugin Sidebar 2|
+{{Plugin Sidebar |
-title=Tektronix 7A12 |
+manufacturer=Tektronix | type=7A12 |
 summary=120 MHz dual channel amplifier|
-image=Tek 7a12.jpg |
+image=7a12.jpg |
 caption=7A12 front view|
 introduced=1969 |
 discontinued=1974 |
-series=[[7000-series scopes]]|
+series=7000-series scopes|
+designers=Roy Hayes|
 manuals=
-* [http://bama.edebris.com/download/tek/7a12/tek-7a12.pdf Tektronix 7A12 Manual (PDF)]
+* [[Media:070-0977-01.pdf|Tektronix 7A12 Manual]] (PDF, OCR)
-* [http://w140.com/smb/7a12_sm.pdf Tektronix 7A12 Manual (OCR, PDF)]
+* [http://bama.edebris.com/download/tek/7a12/tek-7a12.pdf Tektronix 7A12 Manual @ BAMA] (PDF)
 }}
+The '''Tektronix 7A12''' is a 120 MHz dual-trace vertical plug-in for [[7000-series scopes]].
-The '''Tektronix 7A12''' is a 120 MHz dual-trace vertical plug-in for [[7000-series scopes]].
+Switches on the front panel control [[miniature relays]] in the signal path, such as those selecting input attenuators, through logic circuits.
-The 7A12 has relays in the signal path for the input attenuators.
+It uses the [[155-0032-00]] as a gain stage and the [[155-0022-00]] for channel switching.
-The relays are controlled by logic in the 7A12, which is controlled by switches on the front panel of the 7A12.
-The 7A12 uses the [[155-0032-00]] as a gain stage and the [[155-0022-00]] for channel switching.
+The 7A12 was designed by [[Roy Hayes]] (who also designed the [[3A3]] and [[3A8]] before leaving for HP Loveland in Jan 1971).
+The Evaluation Engineer for the 7A12 was [[Peter Starič]], co-author of the book "Wideband Amplifiers" with Erik Margan.
-==Specifications==
+{{BeginSpecs}}
-[[Category:Specifications needed]] ''please add''
+{{Spec | Bandwidth | 120 MHz (79xx) / 105 MHz (77xx) / 55 MHz (74xx) }}
+{{Spec | Deflection | 5 mV/Div to 5 V/Div (1–2–5), variable up to 12.5 V/Div }}
+{{Spec | Input impedance | 1 MΩ // 24 pF }}
+{{Spec | Maximum input | 5 V (0.5 W) − no damage below 10 V (2 W) }}
+{{Spec | Timing | Delay difference between channels < 500 ps }}
+{{Spec | Channel Isolation | At least 3000:1 at 75 MHz }}
+{{Spec | Maximum Input Voltage | 350 V DC + Peak AC at 1 kHz or less}}
+{{EndSpecs}}
 ==Links==
@@ Line 29: / Line 38: @@
 <gallery>
-File:Tek 7a12.jpg|Front view
+a12.jpg|Front view
-File:Tek 7a12 attenuators.png|Attenuator schematic with relays
+Tek 7a12.jpg|Front view
+Tek 7a12 attenuators.png|Attenuator schematic with relays
+Tek 7a12 amplifier pcb.jpg|7A12 Amplifier PCB
 </gallery>
+{{Custom ICs|7A12}}
 [[Category:7000 series vertical plugins]]