11A71: Difference between revisions
(added pictures (thank you very much Tadej!)) |
No edit summary |
||
Line 40: | Line 40: | ||
Tek 11a71 left.jpg | left side | Tek 11a71 left.jpg | left side | ||
Tek 11a71 right.jpg | right side | Tek 11a71 right.jpg | right side | ||
Tektronix_11A71_Schematic_1_Attenuator.jpg|Attenuator | |||
Tektronix_11A71_Schematic_2_Kernel.jpg|Kernel | |||
Tektronix_11A71_Schematic_3_Amplifier.jpg|Amplifier | |||
Tektronix_11A71_Schematic_4_Interface.jpg|Interface | |||
</gallery> | </gallery> | ||
Revision as of 19:29, 11 June 2017
Template:Plugin Sidebar 2 The Tektronix 11A71 a single-channel 1 GHz amplifier for 11000-series scopes.
The 11A71 is derived from the 7A29.
Key Specifications
Bandwidth | 1 GHz |
---|---|
Input impedance | 50 Ω via a Tekprobe BNC connector on the front on the plug-in |
please add
Internals
Custom Tek chips used: 155-0180-00, 155-0181-00, 155-0175-00, 155-0076-00, ...
Links
Pictures
-
11A71 external view
-
Block diagram
-
Right side of the 11A71 plug-in (analog board)
-
Input section. Cable loop acts as a delay line, connects to the input attenuator.
-
Input attenuator, 50 Ω signal path. Laser-trimmed thick film resistors. AC coupling capacitor in plastic support.
-
Amplifier section. Blue cable from input attenuator connects to the 155-0180-00 input protection circuit. Signal is differential from after the first amplifier up to the AD converter in the mainframe.
-
Compensation trimmers
-
Close-up of late-80s RF design
-
Digital board, 8031 MCU
-
Digital daughter board
-
left side
-
right side
-
Attenuator
-
Kernel
-
Amplifier
-
Interface