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Temperature Logger and Standalone Voltage Logger – Circuit Schematic
Temperature Logger and Standalone Voltage Logger
Combine the SATL and SAVL together. The schematic was updated with the voltage sensing circuit, I added in a Mosfet so that we only draw power from the voltage ...
Build a Michelson Interferometer – Circuit Schematic
Build a Michelson Interferometer
Michelson was the inventor of a unique interferometer that opened up new vistas in the science of light and optics. With the interferometer, Michelson was able ...
POWER METER 4010/4011 Digitize Meter – Circuit Schematic
POWER METER 4010/4011 Digitize Meter
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build your own geiger counter – Circuit Schematic
build your own geiger counter
The basic Geiger counter circuit is identical to the previous circuit. The revision is the adding of the components for our three optional enhancements; externa...
5hz to 500 Khz Frequency-Meter – Circuit Schematic
5hz to 500 Khz Frequency-Meter
Based on the famous AT89C52 microcontroller, this 500 Khz frequency-Meter will be enough to trace and debug most of your circuits, to adjust 555 timers frequenc...
pic circuit – Circuit Schematic
pic circuit
This is a simple 50 MHz auto-ranging Frequency meter, developed as a course project by Simone Benvenuti and Andrea Geniola. It uses a single PIC 16C84 and 4 dis...
TC9400 10Hz to 10kHz Voltage$2dto$2dFrequency Converter – Circuit Schematic
TC9400 10Hz to 10kHz Voltage$2dto$2dFrequency Converter
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Simple pH Meter Adapter for Your Digital Voltmeter – Circuit Schematic
Simple pH Meter Adapter for Your Digital Voltmeter
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Mosfet Tester electronic circuit diagram – Circuit Schematic
Mosfet Tester electronic circuit diagram
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Linear LTC4151 Voltage – Circuit Schematic
Linear LTC4151 Voltage
This power monitor device provides accurate voltage and current monitoring of positive supply rail from 7V to 80V through a simple I2C interface, according to t...
AIR TRANSPARENCY MONITOR$2c XENON FLASH RECEIVER – Circuit Schematic
AIR TRANSPARENCY MONITOR$2c XENON FLASH RECEIVER
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Electronic Voltmeters – Circuit Schematic
Electronic Voltmeters
The HP Model 400A Vacuum Tube Voltmeter is unusually flexible because of its wide frequency and voltage ranges. AC Voltages as small as. 005 and as high as 300 ...
Frequency Counter with PIC Microcontroller – Circuit Schematic
Frequency Counter with PIC Microcontroller
If you need more sensitivity, use 74AC04 or 74HC04 instead of 74HCU04 as U1. It may be better than 74HCU04, but the frequency response of 74HC04 may be worse....
Zener Diode Tester Test Gears Circuits Schematics – Circuit Schematic
Zener Diode Tester Test Gears Circuits Schematics
Using a single 555 Timer IC and a small transformer to generate a high voltage, this circuit will test zener diodes of voltage ratings up to 50VDC. The 555 time...
Signal Injector and Tracer – Circuit Schematic
Signal Injector and Tracer
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Multi Wire Cable Tester – Circuit Schematic
Multi Wire Cable Tester
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MilliGauss Meter – Circuit Schematic
MilliGauss Meter
The circuit of Fig. 1 provides an easy yet reliable way to detect the intensity of a. c. (or e. l. f. ) fields around the home or workplace. It is doubly effect...
Electromagnetic Field Probe with Meter – Circuit Schematic
Electromagnetic Field Probe with Meter
This tester is designed to locate stray electromagnetic (EM) fields. It will easily detect both audio and RF signals up to frequencies of around 100kHz. Note, h...
Basic Stamp Based Altimeter – Circuit Schematic
Basic Stamp Based Altimeter
A method of determining altitude is by the use of barometric pressure; however, it is not done without difficulty. The relationship of pressure vs. altitude is ...
Analog to Digital Conversion Notes – Circuit Schematic
Analog to Digital Conversion Notes
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