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Title
Light Controlled Volley Oscillator (CB25763E)
Logic Controlled Latching Relay (CB25739E)
Car Battery Power Supply (CB25689E)
LM386 Oscillator (CB25409E)
Logic test with sound (CB25389E)
Audio Mixer with LM741 (CB25928E)
Light Switch 741 (CB25868E)
High Voltage Inverter (CB25669E)
Two-Transistor Broadband Amplifier (CB25637E)
Emitter Follower Complementary Stage (CB25623E)
Darlington Time Delay Switch (CB25613E)
Hartley for 1 MHz (CB25588E)
Voltage Doubler 555 (CB25543E)
555 Delayed Pulse Generator (CB25507E)
Light alarm activating SCR (CB25481E)
Audio Shield (CB25430E)
LED VU KA2283 (CB25369E)
Divider by 5 in second version (CB25364E)
Alarm with NC sensors (CB25946E)
Wien Bridge Oscillator with NTC Regulator (CB25909E)
Antenna Amplifier (CB25885E)
Unijunction Triac Control (CB25861E)
555 Voltage Tripler (CB25836E)
Sine Frequency Doubler (CB25812E)
4001 Touch Bistable (CB25740E)
Common Source JFET Stage (CB25568E)
Automatic 555 Hand Flashlight (CB25504E)
Power Consumption Monitor (CB25410E)
Color Bar Generator (CB25390E)
Graphic equalizer KA2223 (CB25943E)

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Circuit Bench

  • Guitar Preamplifier using the 741 (CB4429E)

           The circuit shown uses the 741 operational amplifier, but lower noise and higher gain equivalents...

  • Darlington Stage with Feedback (CB975E)

    This circuit was found in a 1968’s publication and uses germanium transistors. Equivalents can be...

  • Inverter for automotive use (CG25728E)

      The inverter circuit shown in the figure provides a voltage of around 110 V with a rectangular waveform...

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