Skip to content

Kerry D. Wong

  • Home
  • My Youtube Channel
  • About

Category: Miscellaneous

  • Home
  • Miscellaneous

3D Print an HV Connector

December 22, 2018December 22, 2018 kwongLeave a Comment on 3D Print an HV Connector

In one of my previous posts, I did a teardown of a Bertan 225-20R high voltage power supply, which is […]

Electronics, Miscellaneous 3D Print, 3D Printer, Bertan 225, Creality Ender 3, Cura, G-code, High Voltage, High Voltage Connector, Tinkercad

Adding Strain Relief to an Existing cable

August 13, 2016 kwong1 Comment on Adding Strain Relief to an Existing cable

Not all cables have proper strain relief built to the connector ends. This is particularity true for some of the […]

Electronics, Miscellaneous Heat Shrink, Strain Relief

DTM0660 Datasheet Translated

April 3, 2016 kwong3 Comments on DTM0660 Datasheet Translated

I have received quite a bit of positive feedback since I wrote about the hacks on DTM0660L based multimeters last […]

Miscellaneous Datasheet, DTM0660, DTM0660L, Translation

The Spectrums of Three Cheap Laser Pointers

October 23, 2015 kwong1 Comment on The Spectrums of Three Cheap Laser Pointers

A couple of months ago, I converted my EP200Mmd monochromator into a scanning monochromator and tested the spectrums of quite […]

Electronics, Miscellaneous EP200Mmd, Fluorescence, Laser, Monochromator, Spectrum

Building A Laser Oscilloscope

March 16, 2015 kwong9 Comments on Building A Laser Oscilloscope

You can generate some pretty amazing patterns by shining a laser onto a mirror mounted on a vibrating speaker cone, […]

Electronics, Miscellaneous He-Ne Laser, Laser Oscilloscope, Lissajous curve, TDA7052

An Old Tung-Sol Germanium Transistor

June 13, 2014 kwong2 Comments on An Old Tung-Sol Germanium Transistor

I recently bought a few old power transistors from eBay. These are PNP Tung-Sol germanium transistors. According to the date […]

Electronics, Miscellaneous Germanium, PNP, Transistor, Tung-Sol

Server Moved to Linode

May 25, 2014 kwongLeave a Comment on Server Moved to Linode

I just moved my site from my own server to linode‘s VPS hosting. So you should see some pretty significant […]

Miscellaneous Linode, VPS

Peltier Cooler Module Repair

January 1, 2014 kwong2 Comments on Peltier Cooler Module Repair

I bought a couple of Peltier cooler modules on eBay a while ago for some experiments. Of course, as I […]

Electronics, Miscellaneous Peltier Cooler, Thermoelectric

QFN Soldering Using SchmartBoard

May 10, 2013May 10, 2013 kwongLeave a Comment on QFN Soldering Using SchmartBoard

I wrote a tutorial a while ago on how to hand solder fine pitched LGA/QFN chips using perfboards. While The […]

Electronics, Miscellaneous MSP430F5342, QFN, SchmartBoard

Westinghouse L2410NM LCD Power Supply Repair

May 2, 2013 kwong2 Comments on Westinghouse L2410NM LCD Power Supply Repair

My seven year old 24 inch LCD monitor (Westinghouse L2410NM) started to flicker recently, so I decided to take a […]

Electronics, Miscellaneous L2410NM, Westinghouse

Tektronix 2445 Teardown

April 25, 2013August 11, 2013 kwong2 Comments on Tektronix 2445 Teardown

I bought an old Tektronix 2445 150 Mhz oscilloscope on eBay the other day. It was listed under “For Parts/Not […]

Electronics, Miscellaneous, Teardowns Tektronix 2445

A Bidirectional Level-Shifting Buffer for Raspberry Pi

April 11, 2013August 10, 2014 kwong5 Comments on A Bidirectional Level-Shifting Buffer for Raspberry Pi

The current sourcing/sinking capability of the I/O pins on Raspberry Pi is quite limited. According to the Wiki page, the […]

Electronics, Miscellaneous, Raspberry Pi ADG3300, Raspberry Pi, SN74LVC4245A

BK 4011 Function Generator Teardown

April 4, 2013December 23, 2014 kwong10 Comments on BK 4011 Function Generator Teardown

I got a used BK Precision 4011 5MHz function generator recently. The 4011 model is rather old and this particular […]

Miscellaneous, Product Reviews, Teardowns BK 4011, Function Generator, MM5369, Teardown

Adding a Barrel Jack And a Switch to Raspberry Pi

February 14, 2013August 10, 2014 kwong1 Comment on Adding a Barrel Jack And a Switch to Raspberry Pi

I got myself a Raspberry Pi (Model B V2) last month. After having played with it for a while, I […]

Electronics, Miscellaneous, Raspberry Pi Barrel Jack, Raspberry Pi

100K 5% Carbon Film Resistor Value Distribution

February 1, 2013February 1, 2013 kwong2 Comments on 100K 52 Carbon Film Resistor Value Distribution

It is well understood that resistors are typically binned in such a way that for a given tolerance the actual […]

Electronics, Miscellaneous Carbon Film Resistor, Distribution, Gaussian

Posts navigation

Older posts

Categories

  • AVR/Arduino (98)
  • Coding (133)
  • Electronics (216)
  • 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 (237)
  • AVR LC Meter With Frequency Measurement (210)
  • A Digitally Controlled Dual Tracking Power Supply -- II (88)
  • AD7705/AD7706 Library Revisited (87)
  • Hacking DTM0660L Based Multimeters (72)
  • 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 (49)

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

  • efkar on AD7705/AD7706 Library Revisited
  • Peter on AVR LC Meter With Frequency Measurement
  • Calvin Love on Arduino Library For LTC4151
  • kwong on AVR LC Meter With Frequency Measurement
  • kwong on Teardown Pictures of an HT118A Multimeter
  • Peter B. on AVR LC Meter With Frequency Measurement
  • James Kelly on Teardown Pictures of an HT118A Multimeter
  • Robin E Midgett on HP 8620C Sweep Generator Repaired
  • kwong on HP 8620C Sweep Generator Repaired
  • kwong on Experiments with a Hydrogen Thyratron

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