Silicon Investigations HP 8756A Network Analyzer Repair Service


The HP (Agilent, Keysight) 8756A Scalar Network Analyzer can accurately measure insertion loss and gain, return loss, and absolute power quickly and accurately.  These scalar measurements can be performed over a broad 10Mhz to 40Ghz frequency range.  Accessories include the HP 11664 diode detectors and directional bridges HP 85020 and HP 85021.

These analyzers were known for display failures, problems with the power supplies, and analog processor board failures.  We usually have exchange spares in stock for most common problems.  These machines are still a good value for the dollar on the used market.  If you are looking to buy a refurbished machine, please contact us to check availability.  Please contact us for information on repairing your machine.


HP (Agilent, Keysight) assembly numbers for major components:

08756-60002 - Front panel interface board
08756-60072 - Power Supply assembly
08756-60003 - CPU board
08756-60080 - ADC/Analog board
08756-60006 - HPIB Interface board
08756-60005 - Modulator board
08756-60011 - Mother board
A7,A8,A9      - Log Amplifiers



HP (Agilent, Keysight) 8756A Reference Information:
HP 8756A Operation Manual

HP Application Notes:
S-Parameter Design Practices

Please see our shipping information page for packing and shipping of your valuable instrument: Shipping Cautions


Please call us at 920-955-3693 or email [email protected] 

Last Modified May 29, 2020
This page, and all contents, are Copyright © 2004-2019 Silicon Investigations, Ltd. Appleton, Wisconsin, USA.



Home - About Us - IC Reverse Engineering - IC Failure Analysis - Patent Services - Vacuum Tube R&D; - Graphene Research - Design Services - Vacuum Engineering - IC Decapsulation Service - Repair Service - Reference Material - Hewlett Packard (Agilent, Keysight) Repair - Contact Us - Site Map

Silicon Investigations - Semiconductor Integrated Circuit Reverse Engineering About Silicon Investigations, our Abilities and Customers Intelectual Property Protection Services. Integrated Circuit failure Analysis Integrated Circuit Package Decapsulation Services Reference Material for Patent Services and integrated circuit Reverse Engineering Silicon Investigations Industrial Electronic Equipment and Laboratory Equipment Repair Services High Vacuum & UHV System Chamber Design & Retrofit Services Electronic Design Services - Specializing in Quick Prototyping - chip on board COB, metallized Alumina for RF. Contact Silicon Investigations for a Quotation on Your Project I.C. Integrated Circuit MCU Microcontroller Unlocking (Code Recovery) Service Semiconductor Integrated Circuit Manufacurers' Logos Identification Guide Integrated Circuit Package Reference Material - Outline Diagrams of Common Devices VME System Components for Repair and Maintenance of SBC VME Computers Agilent, Keysight, Hewlett Packard, HP Repair and Software Operating System Boot Diskettes VME System Component Inventory for Repair and Maintenance of SBC VME MVME Computers Quantum Anomaly Detector Theory - Is it Possible to Decipher the Future? EG&G (Perkin Elmer) Krytron Replacements [KN-4 KN-6, KN-6B KN-9 KN-22, KN-26] and Information on Low Jitter Plasma Trigger Tubes I.C. Integrated Circuit Reverse Engineering Service Vacuum Tube Research, Development, and Custom Scientific Instrument Design Services Graphene Research & Development Program DSO Nano Oscilloscope Firmware Update Archive Public Domain Component Identification Information