Triple Power Supply
2017 | Triple linear power supply that can be used with the Hameg HM8030 function generator.
Stereo Buffer
2017 | A minimalistic stereo audio buffer with germanium transistors.
Z80 Microcomputer Power Supply
2017 | Triple linear power supply for Z80-based microcomputers with dual +5 V rail regulation.
Zeta V2 Microcomputer Assembly
2017 | Assembly of the Zeta SBC V2 microcomputer.
Nuclear Frequency Counter
2017 | Language: Romanian | An old industrial-grade Nuclear Scaler converted into a frequency counter.
Audio Sources Selector V.2
2009 | The improved version of my original 8 sources digital audio selector.
Z80 Microcomputer
2009 | My old Z80 microcomputer. Experimental project as well.
Z80 Minicomputer
2008 | My first miniature Z80 prototype computer. This is an experimental project.
CPLD Programmer
2008 | A parallel port CPLD programmer based on an original Xilinx design.
640K ROM Matrix
2008 | Experiments with larger EPROM chips.
32K ROM Matrix
2008 | Experiments with 2K EPROM chips.
Deck Mini Tachometer
2008 | This is an implementation of a miniature digital tachometer for cassette or reel-to-reel tape decks.
Audio Sources Selector
2007 | Prototype 8 sources digital audio selector.
Magic Wand
2006 | A digital microcontroller-based magic wand with purple LEDs.
Dynamic Light
2006 | I have found this LED dynamic lighting circuit in an old publication. So I build it for fun.
VFD tube VU Meter
2006 | Experiments with a dual grid time-multiplexed electro-fluorescent VU-Meter based on a Soviet VFD tube.
Digital Tachometer
2005 | A digital microcontroller-based tachometer for reel-to-reel tape decks.
Parallel PIC Programmer
2005 | Construction of a parallel port PIC programmer based on Vladimir Soso's design.
Serial PIC Programmer
2005 | Construction of a serial port PIC programmer based on FENG3's design.
The content of this site is provided on an AS-IS basis. No warranties whatsoever.
These are all hobby projects and no technical support is available other than the contents of the articles.
Copyright © 2004- Alexandru Groza
All rights reserved.
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