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Refurbishing a Tektronix TDS7104 Oscilloscope Introduction The TDS7104 Common Failures Make an Image of the Hard Drive CR2032 Backup Battery...
23rd Aug 2026
1

Refurbishing a Tektronix TDS7104 Oscilloscope

from Electronics etc… [alt+shift+b] in technology

23rd Aug 2026
Introduction The TDS7104 Common Failures Make an Image of the Hard Drive CR2032 Backup Battery Replacement and Display Brightness Do NOT Remove the Front Panel Scope Disassembly A Failed Attempt at Switching over to an SSD Reinstalling from Scratch: Windows 2000 Pro or Windows...
A Galois Field Arithmetic Primer Introduction A Galois Field Introduction by Example Base Galois Fields A Real World Example of a...
14th Jun 2026
1

A Galois Field Arithmetic Primer

from Electronics etc… [alt+shift+b] in technology

14th Jun 2026
Introduction A Galois Field Introduction by Example Base Galois Fields A Real World Example of a Base Galois Field GF(2) Extended Galois Fields Extended Galois Field Addition Extended Galois Field Multiplication A Field Defining Irreducible Polynomial A Primitive Polynomial From...
Breaking Rohde & Schwarz AMIQ License Key Generation - the Hard and the Easy Way Or better: the fun and the unsatisfying way… Introduction How AMIQ License Keys Work An Easter...
12th Apr 2026
1
12th Apr 2026
Or better: the fun and the unsatisfying way… Introduction How AMIQ License Keys Work An Easter Egg Reverse Engineering the License Check A Funny Disabled Master Key Using Codex Conclusion Introduction One of the guilty pleasures of playing with old test equipment is to enable...
Polyphase Channelizers with Frequency Offset - a Bluetooth LE Example Introduction A Bluetooth LE Trace as Example Input Complex Heterodyne Derivation of Post-Decimation...
5th Mar 2026
1

Polyphase Channelizers with Frequency Offset - a Bluetooth LE Example

from Electronics etc… [alt+shift+b] in technology

5th Mar 2026
Introduction A Bluetooth LE Trace as Example Input Complex Heterodyne Derivation of Post-Decimation Offset Correction Simplifying for the Half-Bin Offset Case The Odd Case of an Odd Number of Channels Reducing the Number of Phase Adjustment...
Complex Heterodynes Explained Introduction Some Common DSP Notations Sampling with 1 ADC Creates a Real Signal Heterodyning the...
7th Feb 2026
1

Complex Heterodynes Explained

from Electronics etc… [alt+shift+b] in technology

7th Feb 2026
Introduction Some Common DSP Notations Sampling with 1 ADC Creates a Real Signal Heterodyning the Signal to Baseband the Wrong Way Complex Heterodyne to the Rescue Filtering Away the Old Negative Image Decimation Final Block Diagram Conclusion Afterthought: the Fourier Transform...
Notes about Basic Polyphase Decimation Filters Introduction Decimation with FIR Anti-Aliasing Filter Naive Hardware Implementation Reduce number of...
25th Jan 2026
1

Notes about Basic Polyphase Decimation Filters

from Electronics etc… [alt+shift+b] in technology

25th Jan 2026
Introduction Decimation with FIR Anti-Aliasing Filter Naive Hardware Implementation Reduce number of calculations - Move decimator before multiplier Polyphase decomposition of the original filter The Noble Identity for Decimation Re-using Common Hardware in the Fast Clock...
The Scenic Route to Repairing a Self-Destructing SRS DG535 Digital Delay Generator Introduction The Stanford Research Systems DG535 Who Uses a Pulse Delay Generator? Inside the...
24th Dec 2025
1
24th Dec 2025
Introduction The Stanford Research Systems DG535 Who Uses a Pulse Delay Generator? Inside the DG535 The Annoying Mechanical Design of the DG535 It’s Always the Power Supply Power Architecture of the DG535 The How, Why, and Please Don’t of Current Boost Resistor Circuits Root...
Fixing LCD Screen Corruption of a Tektronix TDS220 Oscilloscope Introduction The TDS220 Oscilloscope Opening Up the TDS220 Common TDS220 issues Replacing the power...
3rd Nov 2025
10

Fixing LCD Screen Corruption of a Tektronix TDS220 Oscilloscope

from Electronics etc… [alt+shift+b] in technology

3rd Nov 2025
Introduction The TDS220 Oscilloscope Opening Up the TDS220 Common TDS220 issues Replacing the power supply capacitors LCD Panel Corruption Extracting the LCD Panel LCD Panel Capacitor Replacement LCD Panel Backlight Replacement Fixing the Square Wave...
Inside an Isotemp OCXO107-10 Oven Controlled Crystal Oscillator The Isotemp OCXO107-10 Gathering Information from time-nuts Getting It to Run On the Bench Inside...
26th Oct 2025
22

Inside an Isotemp OCXO107-10 Oven Controlled Crystal Oscillator

from Electronics etc… [alt+shift+b] in technology

26th Oct 2025
The Isotemp OCXO107-10 Gathering Information from time-nuts Getting It to Run On the Bench Inside the OCXO107-10 Looking Forward The Isotemp OCXO107-10 I spent $5 at the Silicon Valley Electronics Flea Market on an Isotemp OCXO107-10 oscillator. Compared to my other OCXOs, this...
Repairing an HP 5370A Time Interval Counter MathJax.Hub.Config({ jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [...
10th Aug 2025
108

Repairing an HP 5370A Time Interval Counter

from Electronics etc… [alt+shift+b] in technology

10th Aug 2025
MathJax.Hub.Config({ jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [ ['$', '$'], ["\\(", "\\)"] ], displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ], processEscapes: true, skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
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