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Title
DM305 amplifier (CB18576E)
500 mW Amplifier TA7117P (CB18897E)
Grid Dip Meter (CB18293E)
Solar Cell Test (CB18491E)
Simple Alarm (CB18540E)
Digital Audio Switch (CB18255E)
Digital Audio Switch (CB18255E)
Signal Injector and Follower (CB18811E)
Electrolytic Capacitor (CB18928E)
Car Anti Theft (CB18220E)
15W Amplifier (CB18434E)
Digital Quick Touch (CB18732E)
Mini Teaching Organ (CB18729E)
Sine to Square Converter (CB18931E)
Microphone Micro Amplifier (CB18324E)
Sensitivity Current Sensor (CB18914E)
Turntable Wireless Oscillator (CB18298E)
Function Generator (CB18881E)
Sonic Switch (CB18650E)
Infrared Remote Control Receiver (CB18697E)
Old Intercom (CB18542E)
7W amplifier CA3020 (CB18501E)
Infrared Remote Control Receiver (CB18724E)
3 Transistor Radio Transceiver (CB18311E)
Light Beam Voice Transmitter (CB18635E)
Amplifier Power Supply (CB18508E)
Japanese Radio TR 72 (CB18369E)
50 MHz transceiver (CB18653E)
Sequential Earthworm (CB18227E)
Optical Tone Transmitter 555 (CB18646E)

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Circuit Bench

  • Light alarm (CB12698E)

      The sensor for this alarm is an LDR and it consists of an oscillator that goes into action when...

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      This circuit tests quartz crystals of frequencies between 100 kHz and 10 MHz. The circuit is from...

  • Powerful 1 W FM Transmitter (CB18704E)

      We found this FM transmitter circuit with the 2N2218 transistor in a documentation from the 90s....

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