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  • TV_TRANSMITTER_1

    2014-11-14 03:23:35169

    The video-link transmitter accepts color and B/W video, and audio inputs from VCRs, camcorders, small TV cameras, and microphones. The unit runs on a n...

  • Time_delay_circuit_using_a_UJT

    2014-11-14 02:43:45140

    Time delay circuit using a UJT. Maximum time delay is set by the 10M pot. Time delay can be set from less than a second to approximately 2.5 minutes (c...

  • HORIZONTAL_DEFLECTION

    2014-11-14 02:34:51125

    Uses 200-v 15-amp transistor with high power dissipation characteristics and low thermal resistance. Drive requirements are substantially reduced becau...

  • Nianfeng YWQ-900 automatic electric pressure cooker circuit

    2014-11-14 02:13:32110

    X1, X2-plug terminals, FU-fuse, PT-timer, ST-limit thermostat, SB-hand button, HL1-heating lamp, HL2-heat indicator, VD-rectifier diode, EH-heater...

  • VIDEO_FADER

    2014-11-14 02:04:34148

    The circuit shown here does an adequate job of allowing you to fade a video signal virtually down to the black level without losing sync on the monitor...

  • BELL_SIMULATOR

    2014-11-14 01:46:42119

    Uses AMI S2561 CMOS IC to simulate effects of telephone bell by producing tone signal that shifts between two predetermined frequencies at about 16 Hz....

  • Converter Circuit With Non-Resonant Feature

    2014-11-14 01:21:32111

    The converters, which are named with part-resonance, multi-resonance, current commutation type and so on, are the zero voltage switch converters with t...

  • The sound circuit diagram of electronic lark

    2014-11-14 00:19:2171

    The electronic bird circuit can emit fluctuated and different birds sound in different light, especially in the changing neon light irradiation, and it...

  • MOBILE_AUTOPATCH

    2014-11-13 23:51:19116

    Circuit operates push-to-talk of mobile station automatically when any button on Touch-Tone pad is pushed for dialing telephone number after making aut...

  • Motor_speed_control_with_tachometer_feedback

    2014-11-13 22:59:20152

    This circuit shows a triac motor-speed control that derives feedback from a magnet-coil tachometer that is placed near the motor fan (Figs. 8-17B and 8...

  • TELEPHONE_TOLL_TOTALIZER

    2014-11-13 22:57:45120

    The Telephone loll Totalizer-built around two 4 518 dual synchronous up counters, a 74C925 4-digit counter, a 4 584 hex inverting buffer, and a 4081 qu...

  • Motor brake circuit diagram

    2014-11-13 22:18:13185

    The motor brake circuit is composed of the power transformer T, rectifier diodes VD1 ~ VD4, variable resistor R, capacitor C, relay K, AC contactors KM...

  • Application Circuit of LCD TV Power

    2014-11-13 22:06:2082

    PLC810PG group and LLC lineless controller integrate with high pressure half-bridge driver. Picture 1 shows the circuit of PLC810PC power supply config...

  • FOUR_RANGE_VTVM

    2014-11-13 20:46:38105

    Measures r-f power oscillator output, for establishing irradiation and calibration procedures and positioning techniques when using focused ultrasound ...

  • Line_operated_one_shot_timer

    2014-11-13 20:06:45111

    This circuit uses a CA3059 zero-voltage switch to control triac operation. The turn-on time of the triac (and thus the current through load RL) is set ...

  • Electrical, Reliability and Radio Characteristics of Siemens

    2014-11-13 19:12:1466

    The Siemens MC75 is the first GSM/GPRS radio module featuring EDGE technology, which is theoretically has a maximum bit rate of 474 kbps compared to GP...

  • THERMOCOUPLE_MULTIPLEXER

    2014-11-13 18:10:16104

    Under control of logic input, DG509 four-channel differential analog multiplexer connects selected one of four thermocouples to instrumentation amplifi...

  • Two-speed fan control circuit

    2014-11-13 18:08:0375

    The two-speed exhausting fancomposed ofpole-changing adjustable speed motor is widely used in high-rise and underground buildings. Usually it runs at l...

  • 1962 Chevrolet 6 Principles of Electrical Wiring Diagram

    2014-11-13 16:50:4466

    Here we would like to introduce you to a 1962 Chevrolet 6 electrical schematic wiring diagram. We recommend wiring work steps are: first carefully read...

  • SINGLE_TONE_DECODER

    2014-11-13 16:49:42119

    Used at receiving end of leased telephone line in which single tone frequency serves for alarm and other purposes. A1 is 741 opamp connected as inverti...

  • MICROWATTS_AT_QUIESCENCE

    2014-11-13 16:40:39137

    Circuit has same characteristics as single unijunction transistor but dissipates only microwatts of power when off.-R. A. Wilson, Pnp Plus Npn Equals U...

  • LT1109/LT1109A Internal Equivalent Circuit And Application C

    2014-11-13 15:52:25100

    The LT1109/LT1109A is low-power-consumption DC-DC convertor. Its output voltage has fixed three types which are 5V, 12V and adjustable output voltage. ...

  • FM Wireless Microphone Circuit Diagram

    2014-11-13 14:27:14164

    The following measures are taken to promise a clear voice of the microphone: the output signal of MIC is first sent to BG1 to be amplified. R1 and C1 i...

  • HORIZONTAL_DEFLECTION_1

    2014-11-13 14:11:50136

    Two-transistor circuit provides high ratio of reverse to for. ward base drive. Oscillator current is 0.12 amp, output-stage current 0.72 amp, und push-...

  • COLOR_HOLD

    2014-11-13 13:20:48108

    Uses passive fiber to separate color subcarrier frequency front sync burst, along with injection-locked oscillator that combines amplitude limiting and...

  • WIRELESS_MICROPHONE

    2014-11-13 12:24:27178

    Q1 amplifies the output from an electret microphone MIC1.Audio is fed into oscillator Q2,whichmodulates the signal.LIC1 is a tank circuit for ope...

  • Electronic password switch 2

    2014-11-13 12:09:0674

    The electronic password switch circuit is composed of the password control circuit and control implementation circuit, and it is shown in Figure 3-97. ...

  • Color_TV_chroma_processor_using_an_ECG797_16_pin_QIP_with_AF

    2014-11-13 11:12:2699

    Color TV chroma processor using an ECG797 16-pin QIP with AFPC, ACC, andkiller (courtesy GTE Sylvania Incorporated)....

  • ANESTHESIA_CONTROL

    2014-11-13 10:32:14110

    Drives anesthetic pump servomotor in response to signals from electroencephalograph that continuously monitors border of wakefulness of patient undergo...

  • IRON_LUNG_AIR_INTAKE_CONTROL

    2014-11-13 08:32:29127

    Air exhaled by patient is sampled and analyzed for carbon dioxide concentration by commercial infrared analyzer that provides electrical output proport...

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