Circuits for the Hobbyist

For your electronics hobby entertainment; ENJOY! It is assumed that you have AT LEAST the equivalent of a Basic Electronics certificate for the electronics projects listed on this page. Other projects require more advanced electronics. A lot of these circuits assume the latter so I will no longer answer the tons of emails in regards to that. If you wish to learn more about electronics there is enough of that available on the internet. Circuits' Message Board Ask your questions here. Someone may answer them | Circuits for the Hobbyist For your electronics hobby entertainment ENJOY It is assumed that you have AT LEAST the equivalent of a Basic Electronics certificate for the electronics projects listed on this page. Other projects require more advanced electronics. A lot of these circuits assume the latter so I will no longer answer the tons of emails in regards to that. If you wish to learn more about electronics there is enough of that available on the internet. Circuits Message Board Ask your questions here. Someone may answer them. Circuits o Alternating On-Off Control o Audio Pre-Amplifier 1 o Automatic 9-Volt Nicad Battery Charger o Basic IC MonoStable Multivibrator o Basic RF Oscillator 1 o Basic LM3909 Led Flasher o Battery Monitor for 12V Lead-Acid o Battery Tester for 9V o Bench Top Powersupply 0-30V 0-10A Part 1 o Bench Top Powersupply 0-30V 0-10A Part 2 o Bench Top Powersupply 0-30V 0-10A Part 3 o Birdie Doorbell Ringer o Bug Detector with Beep o Car Converter for 12V to 9V o Car NiCad Charger o DC Motor Reversing Circuit o DC Motor Control Circuit o Gel Cell Charger I - Off-line o Gel Cell Charger II o Clock Generator o Christmas Lights Tester o Continuity Tester Low-Voltage o Continuity Tester Smart o Continuity Tester Latching NEW o ScanMate Your Radio scanner buddy ErrorFix 6-20-2002 o Simplest R C Circuit o Simplest RF Transmitter o Simple Transistor Audio PreAmplifier o Single IC Audio Preamplifier o Solar Cell NiCad Charger u D T D 7-242002 o Solid State Relay o Third Brake Light Pulser o Toroids RF EMI Cores o Touch Activated Alarm System o Two-Tone Trainhorn o Universal Flasher Circuit o Variable Power Supply 1 - 30V @ o Wailing Alarm o Water-level Sensing and Control o Waterpump Safety Guard for Fish-pond o Weller WLC100 Electronic Soldering Station o Xmas Lights Tester o Zap Adapter o V Tracking Transmitter o 4-Transistor Tracking Transmitter NEW o Cut Phone Line Detector o Dark Light Activated Relay o Electronic Dazer u D T D .