Skip to content

Kerry D. Wong

  • Home
  • My Youtube Channel
  • About

Keithley 775A Programmable Counter TCXO Repair

June 1, 2018 kwongLeave a Comment on Keithley 775A Programmable Counter TCXO Repair

In my last post, I did a teardown of the Keithley 775A programmable counter/timer. And while feeding a 10 MHz […]

Electronics Frequency Counter, Keithley 775A, Repair, Rubidium Standard, TCXO, TCXO-26A, Timebase

Keithley 775A Programmable Counter Teardown

May 27, 2018May 27, 2018 kwongLeave a Comment on Keithley 775A Programmable Counter Teardown

I just picked up a Keithley 775A programmable frequency counter from eBay. Specification-wise, this counter is very similar to the […]

Electronics 2764, 8051, 8291A, Frequency Counter, Keithley 775A, LS7061, M5L8279P-5, MAB8031A, MC10102P, Programmable Counter, TCXO, Teardown

Teardown of a GM3120 Electromagnetic Radiation Tester

May 20, 2018May 20, 2018 kwong2 Comments on Teardown of a GM3120 Electromagnetic Radiation Tester

There are a lot of cheap electromagnetic radiation testers out there which boast some quite impressive claims. So I decided […]

Product Reviews, Teardowns 27M2C, 2C3356, 8052, Electromagnetic, Electromagnetic Radiation Tester, Field Strength Meter, GM3120, HT1621, WT56F216

HP 8566B Spectrum Analyzer “YTO Unlock” Repair

May 10, 2018 kwong1 Comment on HP 8566B Spectrum Analyzer “YTO Unlock” Repair

While I was making a video on how to use HP 8671A as the frequency reference for an improved version […]

Electronics DAC, HP 8566B, Repair, Spectrum Analyzer, YIG Tuned OScillator, YTO, YTO Unlock

A Quick Look at the M5Stack ESP32 Development Kit

April 30, 2018 kwongLeave a Comment on A Quick Look at the M5Stack ESP32 Development Kit

I recently received an M5Stack ESP32 development kit from Banggood. Although I have not used any ESP32 based development boards […]

Electronics, Product Reviews Arduino, Bionic Beaver, ESP32, IoT, Linux, M5Stack, Ubuntu, Ubuntu 18.04

Teardown of an EcoSmart 60W Dimmable G16.5 LED Bulb

April 9, 2018 kwongLeave a Comment on Teardown of an EcoSmart 60W Dimmable G16.5 LED Bulb

Although LED light bulbs have been around for a while, I have not been able to totally replace all my […]

Electronics, Teardowns AL1696, Dimmable, EcoSmart, LED Bulb, Power Factor, Teardown

A Differential Amplifier Based on INA117

March 25, 2018 kwongLeave a Comment on A Differential Amplifier Based on INA117

Differential amplifiers come in handy in applications where common-mode noise and interference are present in the system. This is largely […]

Electronics CMRR, Difference Amplifier, Differential Amplifier, INA117, LT3463, PCB, SMD

HP 8620C Sweep Generator Repaired

March 1, 2018 kwong3 Comments on HP 8620C Sweep Generator Repaired

In my previous post, I did a teardown of an HP 8620C sweep generator along with an HP 86245A 5.9 […]

Electronics, Teardowns HP 8620C, HP 86245A, Repair

Capacitor Plague? Inside an HP 8620C Sweep Oscillator and HP 86245A RF Plugin

February 19, 2018February 19, 2018 kwong19 Comments on Capacitor Plague? Inside an HP 8620C Sweep Oscillator and HP 86245A RF Plugin

I just picked up an HP 8620C sweep oscillator with an HP 86245A 5.9 GHz to 12.4 GHz RF plugin […]

Electronics, Teardowns 1821-0001, 1826-0785, 1826-1349, CA3026, Capacitor Plague, GaAs, HP 8620C, HP 86245A, MC34002, OP02, RF Amplifier, Sweep Oscillator, YIG

Teardown of an HP 8671A Microwave Frequency Synthesizer

February 2, 2018February 24, 2018 kwong1 Comment on Teardown of an HP 8671A Microwave Frequency Synthesizer

I recently bought an HP 8671A microwave frequency synthesizer on eBay. This synthesizer can generate signals from 2GHz to 6.2GHz […]

Electronics, Teardowns 74LS298, HP 8566B, HP 8671A, HP 8671B, HP 8672A, Microwave, Ovenized Crystal Oscillator, PLL, Synthesizer, Teardown, Wavetek 395, YIG, YTO

Further Disassembly of the HP 493A TWT

February 1, 2018 kwongLeave a Comment on Further Disassembly of the HP 493A TWT

My video on the teardown of an HP 493A traveling wave tube amplifier had generated quite a bit of interest. […]

Electronics, Teardowns HP 493A, Teardown, Traveling-wave tube, TWT, TWTA, Watkins-Johnson, WJ-3502-1

The Traveling Wave Tube inside HP 493A is Radioactive

January 18, 2018 kwong3 Comments on The Traveling Wave Tube inside HP 493A is Radioactive

In my previous video featured on EEVBlog I did a teardown of an HP 493A microwave amplifier along with the […]

Teardowns 8068, Cathode, Electron Gun, HP 493A, Pentode, Radioactive, TWT, Uranium Oxide

Featured on EEVBlog – HP493A Teardown

January 17, 2018January 17, 2018 kwong1 Comment on Featured on EEVBlog – HP493A Teardown

Big thanks to Dave Jones at the EEVBlog for featuring one of my teardown videos. His generosity would certainly help […]

Electronics, Teardowns

Amrel PPS-2322 Programmable Power Supply Firmware Backup

January 7, 2018 kwongLeave a Comment on Amrel PPS-2322 Programmable Power Supply Firmware Backup

Quite a few people had contacted me on the availability of the firmware for the Amrel PPS-2322 programmable power supply […]

Electronics Amrel, EPROM, Firmware, PPS-2322, Programmable Power Supply, TL866A, TMS27C512

Inside a PM1A Color Analyzer

January 2, 2018January 3, 2018 kwong1 Comment on Inside a PM1A Color Analyzer

As I mentioned in one of my posts a few years back, a color analyzer from the 80’s can be […]

Electronics, Teardowns 931A, Beseler, Color Analyzer, Photomultiplier, PM1A, PM2L

Posts navigation

Older posts
Newer posts

Categories

  • AVR/Arduino (98)
  • Coding (133)
  • Electronics (215)
  • Linux/BSD (34)
  • Miscellaneous (190)
  • MSP430G2 (10)
  • PIC (4)
  • Product Reviews (21)
  • Raspberry Pi (5)
  • Teardowns (59)
  • Technology (57)

Tools & Libraries

  • MCP2210 Library
  • BCalc — A Hex/Bin/Dec Converter And Calculator

Most Popular Posts

  • A Sensitive DIY Ultrasonic Range Sensor (286)
  • Building a Constant Current/Constant Power Electronic Load (234)
  • AVR LC Meter With Frequency Measurement (207)
  • A Digitally Controlled Dual Tracking Power Supply -- II (88)
  • AD7705/AD7706 Library Revisited (86)
  • Hacking DTM0660L Based Multimeters (71)
  • A Self-Balancing Robot – III (62)
  • Reverse Engineering the Syma S107G IR Protocol (56)
  • Arduino Development Using NetBeans (51)
  • Dual Purpose Spot Welder With Pulse Duration Control (45)

Archives

My Favorite Sites

  • Arduino Forum
  • Circuit Diagram
  • Dangerous Prototypes
  • EEVBlog
  • Electrical Engineering Forum
  • Electronics Lab
  • Electroniq.net electronics projects and circuit diagrams
  • Hack A Day
  • Hacked Gadgets

Recent Comments

  • Sadegh Shebani on Experiments with a Hydrogen Thyratron
  • Alessandro D'Isola on A High Current TRIAC Controller Using Arduino
  • Martin on A High Current TRIAC Controller Using Arduino
  • Am on Teardown Pictures of an HT118A Multimeter
  • Wally Harwood on PLA Dielectric Strength Measurement
  • dennis pantoja antone on Battery Adapter Teardown and Sony A6000 Power-Off Current Draw
  • Ollie on Bring a Dead WD1001FALS Back to Life
  • kwong on Building A Tracking Generator
  • Berkin on Building A Tracking Generator
  • Charles Rozell on About

Tags

74HC595 555 Accelerometer AD/DA Algorithm Arduino ASP.Net ATMega328 Atmega328P AVR C++ C Sharp (C#) DAC dasBlog Data Logging DS3232 Electronic Load GridView High Voltage HP 8566B I2C Keithley 196 LCD Linux MCP2210 MSP-EXP430G2 MSP430 LaunchPad MSP430G2 MSP430G2231 Multi-threading Open Source Physical Computing Q9450 Reflection Security SHT21 Signal Generator SPI Teardown Temperature Sensor Ubuntu Ubuntu Server VMWare Windows Vista WordPress
Copyright © 2021 Kerry D. Wong Theme: Flash by ThemeGrill. Proudly powered by WordPress