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Electronics Handicrafts

Instruments for electrical measurments and any physical measurements

ProjectDescription
Battery Discharge Analyzer
May 9, 2010
Measures the discharge characteristics of the batteries. The output data can be expressed into a graph with a spreadsheet.
Digital Dipmeter
Oct 25, 2009
Dipmeter (diposcillator) is a traditional measurement instrument for ham radio. It had been typically consist of vaccum tube and variable capacitor. This project rebuilds it with modern circuit and components.
DDS Function Generator
Mar 14, 2007
A simple function generator based on DDS system. This is suitable to generate audio test signals.
Radio Spectrum Monitor
Oct 17, 2005
This is an experimental project to analyze radio band in FFT.
Lux Meter
Aug 3, 2005
This is a simple Lux Meter that is suitable for beginners.
Capacitance Meter
Mar 26, 2003
Auto ranged capacitance meter. It can measure up to several 100µF in ninimum resolution of 0.1pF.
Universal Counter
Feb 14, 2003
Typical frequency counter that built by electronics hobbiests. This counter can measure time periods and has communication interfase, so that I named this "Universal Counter".
Port-Powered Temperture Meter
Oct 30, 2002
This is a four-channel temperature measurmet adapter that works without external power supply. It will suitable for measureing temperature and logging its data with a PC.
MAX038 Function Generator [ja]
Jul 6, 1996
This document was published on "Transister Gijutsu, June 1999".
This is a function generator that can generates 10Hz through 20MHz in six ranges. Analog output can select one of any wave forms, sine, triangle or square. TTL output can select 50% fixed duty or variable pulse width.
Wave Captor 'SAKURA'
May 31, 1999
This is a digital osclloscope adapter which is attached to the serial port of PC, and insurated them with photo-isolater. It acquires at 8 bits, fixed 10k samples/sec.
In-Circuit Conduction Tetster
April 20, 2008
This is an in-circuit conduction tester to check if the proto-board is wired correctly. It can test the conduction without an influence due to semiconductor parts on the circuit board.
In-Circuit Tester [ja]
May 24, 1995
This is an in-circuit tester that to check correctly wired. It can test a circuit board without be influenced by semiconductor parts.
Logic Tester [ja]
Apr 9, 1995
This is a simple logic level tester with pulse strech capability.
Revolution Meter
Dec 10, 1994
Revolution meter by measureing method of strobe synchronization. It can measure up to 100,000 rpm in two ranges.

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