Circuit Bench

Articles
Title
Transistor Amplifier (CB18859E)
Shortwave Radio (CB18471E)
Pass Counter (CB18778E)
Simple Timer (CB18452E)
Push-pull 3-transistor amplifier (CB18305E)
Digital Remote-Control Receiver (CB18789E)
Improvised Christmas Lights (CB18712E)
Water Pump Automatic Control (CB18677E)
Geiger Radiation Detector (CB18334E)
Commercial Radio with 3 Transistors TR3A (CB18385E)
1-Transistor MW Radio (CB18841E)
12 V to 110 V or 220 VAC Inverter (CB18231E)
Voltmeter 200 k ohms per Volt (CB18923E)
Constant Volume Amplifier (CB18461E)
Heterodyne Frequency Meter (CB18295E)
Electronic Bird (CB18670E)
Anti Theft Alarm (CB18209E)
AC Pulse Activated Counter (CB18709E)
3 W FM transmitter (CB18765E)
Super Machine Sequential (CB18708E)
Photodiode Amplifier I (CB18863E)
VCO 4046 (CB18269E)
FET Astable (CB18252E)
Hybrid Touch Sensor (CB18337E)
Telegraphy Practice Oscillator (CB18342E)
Phase Inverter (CB18959E)
Amplifier CA3020 (CB18499E)
4 Transistor Stereo Amplifier (CB18848E)
Presence Detector (CB18741E) The original name of this project found in documentation from the 90s is “ghost hunting”. The circuit uses a not too long stretched plate or wire as a sensor and has its adjustment made by a trimpot. The power i
6-Transistor Radio TR6A (CB18391E)

Page 200 of 717