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Recent posts:
- New method for measuring lots of resistors using very few wires - part 3 - a simple measurement device
- Davids bile giveaway - Subscription? No, thanks.
- New method for measuring lots of resistors using very few wires - part 2 - Theory
- New method for measuring lots of resistors using very few wires - part 1 - Theory + intro
- GPIO abuse - sourcing and measuring at the same time
- Overdetermined system of linear equations
- Repair/teardown - FlexiScale weight and calculator scale
- L110 METRA Blansko resistance decade box
- Circuit Cellar publication - a new method for measuring resistors!
- HP 9000 Superdome utilities board ( A6475-60201 ; UGUY5-500 ) high res scan + guesswork
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Author Archives: daqq
B16S22 tube info
A guy on a forum I visit wanted data on this tube. Note: it's only a pinout, and similar tubes to illustrate the functions and meanings of various pin names.
The Nixie Power supply
WARNING: This device deals with high voltages. It is very unwise to build it unless you fully undestand it and are aware of the risks. I take no responsibility for whateever you may inflict upon yourself and/or others directly or … Continue reading
Etching aluminum with Ferric Chloride
Ferric Chloride is a great substance! A lot of people have it, cause it is used to etch PCBs in DIY conditions. Aside from eating away copper, FeCl3 reacts with a lot of metals, but is harmless to most paints, … Continue reading
The nixie clock V0
As a fan of retro electronics I found it very nice to have a nixie clock. So I'm building one. It will have a few Z560 nixies and will be driven by 2x HV5630 chips. Ofcourse, it will be AVR … Continue reading
The AVR controlled clock
The AVR controlled clock: A friend of mine needed a clock into his amplifier as an extra function. So I made him one. It consists only of one AVR processor and one BQ-M512RD (or compatible, with common anodes) LED display. … Continue reading
The Sanity nullifier
The purpose of this device is a bit evil. Oh well, sue me. I made it as a yoke for the first of april and many more days to come. A brief description: The device beeps a short beep of … Continue reading
The DPLC programmable controller
The DPLC is a PLC I made for my final exams at high school. It can be programmed in a simple language, has 16 inputs and 16 outputs. It can be programed with 65536 bytes, which is equal to 8192 … Continue reading
The concealed codelock
The Concealed codelock (CC for short) is a design of mine, which can be used in a similar fashion as a safe lock, such as that on the picture above. The rotation sensor used here is just a simple 10k … Continue reading
The Game of Life on a 20x4 character LCD
The reason for making this project is that I was always fascinated by Conways Game of Life. It's a great demonstration of the fact that simple things with a very simple set of rules can do wonderful things: spawn more … Continue reading
YALBlinkie
Yet Another LED Blinkie project I wanted to play with a simple RGB LED, to see how colors would mix, change and stuff. So I build my own LED and "controller". It fades in and out a set of 9 … Continue reading
