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Alternating On-Off Control
Audio Pre-Amplifier #1
Basic
IC MonoStable Multivibrator
Basic RF
Oscillator #1
Basic
LM3909 Led Flasher
Birdie
Doorbell Ringer
Bug
Detector with Beep
Car
Converter for 12V to 9V
Charger for
Gelled Lead Acid Batteries
Clock Generator
Continuity Tester, I
Continuity Tester, II
Dark/Light
Activated Relay
Electronic
Template
Fluid-Level Detector
Lantern Flasher/Dimmer
LED
Pilot Light (AC or DC)
Logic
Probe with pulse
Micro-Spy
with FETs
Micro-Spy
with USW
Micro-Spy
with TTL
Miniature
FM Transmitter #1
Miniature
FM Transmitter #2
Miniature
FM Transmitter #3
Morse
Code Practice Keyer, I
Morse
Code Practice Keyer, II
No-Hassle Third Brake Light
Third Brake Light Pulser
RF
Transmitter, light sensing
ScanMate
Simplest R/C
Circuit
Simplest
RF Transmitter
Simple
Transistor Audio PreAmplifier
Single IC
Audio Preamplifier
Solar
Cell NiCad Charger
Toroids, RF/EMI Cores
Touch
Activated Alarm System
TUP/TUN/DUS/DUG
Two-Tone Trainhorn
Universal
Flasher Circuit
Wailing Alarm
Water-level
Sensing and Control
1.5V
Tracking Transmitter
4-Transistor Tracking Transmitter
30-Meter QRP
Transmitter for Morse Code
555
Timer IC Tester
555 Timer Tutorial + Circuits
741 Op-Amp
Tutorial + Circuits
741-Light Sensor
Radio Shack Partnumbers
4QD--circuits galore
Tomi Engdahls' Page - More
ciruits
The Electronics Page - Tons of circuits
here also
WebElectric Magazine. - By Lawrence Thomas Mazza
Circuits - Alarm, Jingle
Bells, Codelock, Speechrecorder, NiCad Charger
Wilco Hollemans Page in The Netherlands - CW and
Amateur Radio, clubs
Larry's Robotics &
Electronics Page
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