- CD4528 Power On issue
- current CONTROLLED
- Analog Amplifier Design [need assistance for the next couple of hours]
- Sip & puff
- Project Help 12v dc Amps/ Digital Voltmeter/Tachometer
- Please help me with these circuit diagram
- PIC Barcode Project
- College student needs some feedback on a ping pong scorekeeper
- electric touch- negative ion generator
- prolong halogen lamp life (burns from 240V AC)
- Rate of flow of water
- Dissertation Help
- is it possible to do the project described below!
- variable capacitor
- Studio Ring Flash Xenon Tubes
- Controlling over 1000 rgb leds
- doorbell with counter ic
- Dragons Breath
- 12V to -5V/0/5V
- Looking for stepper motor control and an output.
- Time Delay Relay
- 4P2T selector switch diagram
- Relay Rating Question
- Help: Does a 40V multiplexer chip exist?
- Amplifier...Complex
- Constant Current Source for PT100 circuit
- PIC to RF transciever - signal levels
- Scoreboard Circuit
- High sensitivity rapid response themistor
- Total and utter newbi
- i need help in a timer delay circuit
- LED switchable controller
- Decade counter w/ hex inverter - inverted output?
- Debouncing multiple switches
- Help with LED's
- Anenometer circuit troubleshooting (lm2917)
- Voltage regulator for heated grips
- Audio detection timer
- Circuit Isolation
- RGB LED Controller and ammeter data
- 40V de-multiplexing chip??
- BLDC Motor Driver
- Pump Running Indicator
- Audio Amp Component Selection
- Latching CMOS ckt to drive a relay
- Differential to Single mode conversion?
- How many relays does an HVAC / thermostat need?
- deconstructed denon hifi for the amp.
- Usage Meter For HP Defrost
- electrect microphone
- rgb led
- Help with 7490/7447 Digital Clock
- Small actuator/piston Design
- how do i make 120v xmas lites work on 220v?
- Does Anyone Use "Viewmate"?
- ESR Capacitor tester
- LCD Monitor Modification
- Basic Circuit Review
- Voltage to current converter
- looking for help with seven segment LEDs.
- blue eye technology
- apology but little help pls.
- Count limiting circuit
- Noob needs help w/ strobe light
- DC to AC inverter
- sound level measurement
- Toroid question
- Deconstructed Karaoke Machine
- Batter Charging with MAX712 IC
- Novice looking for help
- Quick question about Relays AC/DC Wiring
- Phase Modulator-Demodulator
- need help with reset circuit
- Amplify function generator
- 3 aspect model RR signalling help plse
- Question about candle power
- pwm to 240v sine wave triac control
- Back emf protection
- need help with trigger circuit
- PIC24F to sence a Bulb State
- implementing remote control
- LDR Crcuit on Copper Breadboard
- GEO Phone
- gps and alarm circuit
- how to design a low noise pre amp using IC uA741?
- Hall Sensors in Series Circuit Problem
- LED at a certain Frequency
- Control Room Lamp with PIC and Switch
- Tranciever circuit to interface with "off the shelf" BT headset.
- Urgent help pls i want to die now!!!!!!!!!!!11
- Test op-amp offset voltage and impedance
- 12F675 Temp controller project - with open C source
- Pitch Shifter Project
- Using LED's to indicate voltage from different sources
- PC Controlled LED Cube
- 12 volt fence charger plans
- LED driver
- 1-0 Ammeter
- Slave Flave Units - Hot shoe info?
- HELP VU METER & audio spectrum analyzer
- Transimpedance amp
- Battery inverter/charger with USB output
- Vehicle Loop Detector
- vehicle loop detector
- Help with Band-Pass-Filter
- Silhouette Camera
- Digital lock.
- Speed Boxing Device
- PWM Demodulator for infrared communications
- Looking to automate a duct work blastgate
- Driving a DC motor from the output of an Op-Amp
- MOSFET driver circuit ?
- Sine
- Sine
- 7 segment led
- Could I add 200 rpm to module signal?
- help needed on code implementation=)
- Variable parallel delay circuits for Solenoids
- inductor wire
- Measuring the home current consumption
- AC electric motor speed control
- circuit problem!!!!
- Wireless Audio Transmitter
- wireless temperature monitor
- Timer circuit for 12v car fan (to body solenoid)
- Can anyone bring my idea to life???
- Possible to make van de graaf, with a negative ion generator?
- Sizing MOSFET to Motor
- Serial to Parallel
- electrical power tranfered to mechanical
- 555 chip information
- Simple delay for Sensor
- help with filter design-urgent
- how can I multiply resistance?
- A way to do this electronically ?
- Solar Powered Battery Recharger
- Dc motor controller(forward reverse)
- Design and Mod Help Needed
- a few diodes,if you please
- UV Exposure Box
- flyback transformer
- 2-5 sek delay of 12V compressor
- laser source and photodetector circuit of a sensor
- Simple op amp plans needed
- High gain Mic Preamplifier
- Digital alarm clock
- assistance needed in RFID
- Auto "power off" project
- PIC Projects
- Connecting Altera to Dac
- Need help designing digital schematic
- Replacing a POT with a PIC
- Thermistor project
- Tesla coil
- Move !!
- plz help in project{khan}
- Trying to build a custom case
- Super WheelChair
- DAC with negative output voltage
- object triangulation/ tracking
- LM35 temp sensor project
- hobby motor/servo-controlled 'flap'
- taser
- Must Convert FPC to Round wire
- analog to digital
- Smallest usb interface possible
- Simulating moon light
- Powered farm gate
- Wireless microphone help
- Central Locking Problem...
- voice compression using ADPCM algortihm
- opamp as buffered output?
- number of turns
- frquency counter
- help with 12v to 3v regulated supply
- IR Emitter detector
- Multiple message audio device
- Learning Electronics
- power led from uC pin, opamp or BJT?
- tinkering with an idea and need some input
- Delay circuit
- filtering circuit for automotive pic supply
- DDS chip capable of producing arbitrary wavforms
- Project: Binary to 7 Segment Decoder
- converting a PWM output to steady voltage
- Power on, diodes on for 4 seconds?
- Please Help me to caliberate this Opamp Circuit!
- One question about antenna sizes for fm transmitter
- Help with voltage adder/summer circuit
- timer circuit
- LED Project for remote Campsite + Automated
- hi i need help
- a/v scart device
- Ni-MH batterys for LED
- 3rd Brake LED Light (F1 style)
- Voltage doubler
- help converting a servo output to on/off
- led scoreboard
- Electronic problems
- RF replacement for data connector
- Simple short range IR/laser beam break position detector
- Voltage Regulation - Help Checking I Have my Facts Straight
- Control a servo by a small voltage signal
- help in a Circuit used to fire thyristors
- Usb1.1 conversion project
- Bridge Rectifier Problem when connected to Wall Power Outlet
- Simulation using Proteus package...help
- "1.5V AA" 3 months continuously night lamp
- servo motor controller
- intermttent motor control
- Temperature Controlled computer Fan
- UVPROM Camera
- Single phase variable frequency drive
- 0.5 microsecond strobe flash
- op amp power rails
- Confused with dc car door lock motor
- SIPO shift register 74164
- Antenna length
- gate drive design for mosfet
- How to control 600 led without using mircocontroller?
- Impact sensor ideas
- gear motor advise
- Looking for the proper IC (if it exists)
- Bone Growth Stimulator
- voltage surge protector
- Toggle between frequencies
- Need help with reversing DC motor circuit
- tsop1738
- current control again!
- how do I isolate DVOM probes from the power source
- Its Necessary
- Medium Frequency Induction Furnace
- PCB help!!!
- Help needed in powering 500 flashing led.
- Recieving Civil aircraft frequencies?
- Help making shock gag devices with transformer.
- Detecting AC Line Voltage
- Increasing the range of a 2 way radio?
- Digital led display for thermostat help
- IGBT Gate Driver
- Help with Totem-Pole slotted IR sensor
- Thermowell compound
- Help for a beginner / 555 timer.
- Basic LED circuit help.
- Fm transmitter questions?
- Resistor & ground query
- College project
- designing a 0.5W audio amplifier with mute and volume control using IC TDA7052A
- temperature controll
- counter