quarta-feira, 17 de dezembro de 2008

Circuitos Eletrônicos para Instrumentação de Bancada



Circuitos Eletrônicos para Instrumentação de Bancada

120MHz frequency counter
12V Lead-Acid Battery Monitor
220V live wire-in-wall scanner
3 - 12 MHz Signal Generator
40MHz frequency counter using Atemel AVR 2312 microcontroller
4-channel DSO for oscilloscope
555 go / no-go tester
555 Timer IC Tester
A Surprisingly Accurate Digital LC Meter
AC Line Current Detector
AC/DC LED Indicator
Adjustable continuity tested
AMP Hourmeter project
Arbitrary Waveform Generator
Audible continuity tester
Audio Millivoltmeter
Audio Test Oscillator
Automatic stud detector
Build a Magnetic Field Immunity Tester
CAPACÍMETRO DIGITAL para frequencimetro
Capacitance meter
Capacitance meter
Capacitance meter that connects to multimeter
CapPic
Connection tester
Continuity tester
Continuity tester
Continuity tester 2
Desmagnetizador de TRC
Digital Capacitance Meter
Digital frequency counter
Digital Pressure Gauge
Digital volt meter
Dip Oscillator for HF
Distortion Analyser
Electric field & leakage detector
Electronic level
EMF field probe
ESR Meter
Field strength meter for the 137 kHz band
Four Channel Oscilloscope Adapter
Frequencimetro até 2GHz
Frequêncimetro com PIC
Frequency and capacitance meter
Frequency Counter
Frequency counter
Frequency counter with a PIC and minimum hardware
frequency counter with the 16F628
Full Featured Transistor Tester
Function generator
Function generator
Generador de funciones completo
Grid dip meter
High / Low indicator
In-circuit electrolytic tester
Indutímetro para multiteste
Lâmpadas série
LASER/LED light output intensity meter (PDF)
LC meter
Lc meter com pic 16f84
Lc meter german
LC METER Inductance and Capacitance meter
LC meter Polish
Lc meter Russian
Lc meter Turkish
Lc metre france
LCD frequency counter (PIC16F84)
Line Output / Flyback transformer tester
Live line detector
Logic probe
Logic probe
Micro ohm meter
Micro volt probe
Microphone Circuit Test Oscillator
Mini DDS (direct digital synthesizer)
MOSFET tester
Multi Wire Cable Tester
Opamp Design and Test Board
Owens Bridge Inductance Measurement Device
PC Based Digital Storage Oscilloscope Mk3
PCB VSWR bridge
PC-Based Digital Storage Oscilloscope (DSOA)
pH Meter
pH meter with calibration
PIC frequency meter by OM3CPH
PIC logic probe with pulser
Pink Noise Generator for Audio Testing
Power factor meter
PRESCALER para frequencímetro com Ds8629
Progamador de Eprom Willen + software
Pulse Reading Logic Probe
Ramp generator
RCM710 Electronic Scale
Remote Field Strength Meter
Resistor decade box
RF Power Meter for the QRPer
Self Oscillating Amplifier for Distortion Testing
Signal generator for signal tracer
Signal tracer / injector
Simple 6-Digit 40MHz Frequency Counter Module
Simple light sensor adapter for oscilloscope
Simple pH meter
Simple polarity detector
Some simple test equipment to build
Sonda para medición de Alto Voltaje
Square wave oscillator (555)
Temperature compensated pH meter
Testador de Flyback
The 2002 DFD Digital Frequency meter
Time Domain Reflectometer (TDR)
Transistor tester and signal injector
Triangle and Squarewave Generator
Tri-Waveform Generator
Two Tone Audio Oscillator (use for SSB tests)
Voltage probe
Wattmeter ROE
Wire tracer
Zener diode tester

Circuitos de Telefonia e Intercomunicação
1-line telephone status indicator (PDF)
300 baud modem circuit schematic
4-line telephone status indicator (PDF)
Assorted telephone circuits
Caller ID decoder
Caller ID decoder part 1
Caller ID decoder part 2
Cut Phone Line Detector
Cut phone line detector
Detecting a telephone RING
Digisound ring modulator
Digital/Standard Phone Line Tester
DTMF decoder / logger
DTMF Generator/Decoder
FM Telephone Bug
FM telephone bug
Greek telecard reader
Hold function for Telephone
Home made PBX / PABX
Incoming call indicator
Infinity Transmitter Schematic and Plans
Interface cables for various cell phones
Line in use indicator (PDF)
NCDS Interface Schematic for Nokia 3110, 8110, 8110i
Phone Busy Indicator
Phone in-use
Phone In-Use Light
Phone Line to Audio
Phone Off-Hook Indicator
'phone rang' indicator light
Phone ring circuit schematic
Phone to audio interface
Phone-In-Use indicator
Ringing Phone Light Flasher
Simple circuit to connect telephone equipment to audio mixer
Simple Phone Tap
Talking phone dial monitor
Taxi phone automatic dialler
Telephone Audio Interface
Telephone autodialler
Telephone Hold Button
Telephone in use light
Telephone interfacing / caller ID using a PIC microcontroller
Telephone In-Use LED Indicator
Telephone In-Use Relay Circuit
Telephone Line Monitor
Telephone line simulator
Telephone music on hold box
Telephone privacy adapter
Telephone Recorder
Telephone recording circuit
Telephone ring controlled relay
Telephone Ring Generator Using 60Hz Power Transformer
Telephone Ring Generator Using Switching Power Supply
Telephone ringing circuits
Universal telephone hold
Use old phones as an intercom
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