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  • 9_channel_plus_fixed_priority_cha_nnel_logic_for_PF_scanner_

    2014-11-26 07:37:11111

    9-channel plus fixed-priority-cha nnel logic for PF scanner/monitor receiver (courtesy Motorola Semiconductor Products Inc.)....

  • CASSETTE_DATA_READOUT

    2014-11-26 06:21:0198

    Uses separate circuits haying threshold provisions for both positive and negative peaks, for reading data stored on cassette tape at 15 in/s. Head outp...

  • FET_CASCODE_VIDEO_AMPLIFIER

    2014-11-26 04:32:20109

    The FET cascode video amplifier features very low input loading and reduction of feed-back to almost zero. The 2N5485 is used be-cause of its low capac...

  • DELTA_TV_SOUND

    2014-11-26 04:26:54123

    Costs less than ratio derector sound system. Uses discriminator circuit with triode operating us power detector, with cancellation of undesired aim fun...

  • APERTURE_CORRECTING_CIRCUIT

    2014-11-26 04:26:33119

    Diode D2 of keyed clamp acts as conventional peak rectifier d-c restorer for tv camera circuif. -D. G. Cartoon, Designing Transistorized Television Cam...

  • CONDUCTIVITY_TESTER

    2014-11-26 03:22:49139

    For nondestructive testing of printed-circuit conductors, through hole plating, soldered joints, and coils, in resistance range from 0 to 50 milliohms ...

  • 163_MHz_oscillator_for_low_side_injection_in_CB_operation_us

    2014-11-26 02:41:33147

    16.3 MHz oscillator for low-side injection in CB operation using a TIS148 dualgate MOSFET(courtesy Texas Instruments Incorporated)....

  • EMOTE_TELEPHONE_RINGER

    2014-11-26 01:10:23130

    When there is no ring signal, the phone line's on-hook voltage (about 50 V) keeps the triac (Radio Shack 276-1001 or equivalent) from switching on, so ...

  • The structure diagram of LDl001

    2014-11-25 21:48:5598

    Because the frequency and duty factor changing of PWM signal is much larger, it can not convey simply through transformer.So SCALEis equipped with LDI0...

  • High_speed_FIFO_memory_using_the_MC10143_register_file

    2014-11-25 19:39:3399

    High-speed FIFO memory using the MC10143 register file (courtesy Motorola Semiconductor Products Inc.)....

  • CAMERA_SHUTTER_CONTROL

    2014-11-25 19:38:25147

    Keeps camera shutter open for predetermined time, to photograph scope as radiation pellet moves past a succession of radiation detector tubes facing co...

  • COLOR_FOR_TV_TYPEWRITER

    2014-11-25 18:56:09113

    Uses 3.579545-MHz crystal osdllator to drive string of CMOS buffers forming digital delay line. Output delays caused by propagation times in each buffe...

  • IGBT Absorbing Circuit

    2014-11-25 17:39:03154

    Except the large-capacity devices, the IGBT absorbing circuit has two kinds which are shown in the picture. And, the picture (a) is the most simple cap...

  • A_D_dividers_using_the_AD7520_18_pin_DIP

    2014-11-25 17:34:05106

    A/D dividers using the AD7520 18-pin DIP. With all bits off the amplifier saturates since division by zero isn’t defined. With the LSB (bit 10) on th...

  • Miniature Black and White TV System

    2014-11-25 16:01:1893

    The camera's video signal is connected to the video modulator with an RCA jumper cable. Power to the camera and video modulator is connected to the 12V...

  • Chicken male and female discriminator 2

    2014-11-25 15:10:04182

    The chicken male and female discriminator circuit is composed of the pickup amplifier circuit, frequency selection circuit and LED driver circuit, and ...

  • CCTV_REPEATER_POWER_SUPPLY

    2014-11-25 14:36:03129

    CCTV REPEATER POWER SUPPLY-Operates from 24.v battery at transmitting terminal. C1 isolates battery voltage from terminal equipment, and L1 prevents sh...

  • Inductive electronic doorbell 1

    2014-11-25 14:09:07164

    The inductive electronic doorbell circuit is composed of the inductive electronic switch and music generator circuit, and it is shown in Figure 3-115. ...

  • New degaussing principle circuit

    2014-11-25 12:28:34188

    Because the voltage on capacitor C2605 can not mutation, this high level signal thorugh R2602 resistor first charges to C2605, because charging time co...

  • Three-Port Voltage Regulator Basic Application Circuit

    2014-11-25 11:03:56148

    The picture shows the three-port voltage regulator basic application circuit (for example of 7805). The input AC 220V voltage would be through the tran...

  • Black-And-White Wall Hanging Visible Doorbell Circuit

    2014-11-25 10:07:53119

    As the people's life level in our country is higher than before, some home security products have entered the house gradually. And the visible doorbell...

  • LT1766 Application Circuit

    2014-11-25 09:12:44109

    The picture (a) shows the LT1766 internal equivalent circuit. In the chip it has the 200kHz oscillator, driving circuit, switch tube and other all func...

  • Regulator Power Circuit With Output Of 6V/5A

    2014-11-25 08:56:34138

    The picture shows the regulator power with output of 6V/5A. The adjustable tube is made up of VT3, VT4, VT5 and VT6. The VT5 and VT6 are in parallel to...

  • SID2141X Video Preamplified Circuit Diagram

    2014-11-25 07:53:1668

    SID2141X is a kind of video preamplifier ICand it iswidely used in a variety of domestic and imported color monitors. The SD2141X integrated circuit co...

  • HEART_RATE_REGULATOR

    2014-11-25 06:16:56143

    Senses arterial pressure and differentiates pressure signal to eliminate mean pressure and produce required sharp spike at beginning of each pressure p...

  • Color_TV_chroma_signal_processor

    2014-11-25 04:59:19150

    Color TV chroma signal processor. The ECG728 provides subcarrier regeneration and total chroma signal processing prior to demodulation. The coils of th...

  • BALANCED_DIODE_COLOR_BURST_GATE

    2014-11-25 04:18:44128

    Used in automatic video-processing amplifier that instantly compensates for wide variations in color or monochrome input signal levels, to maintain out...

  • TV_horizontal_AFC_and_oscillator_with_sync_separator_for_neg

    2014-11-25 02:33:0395

    TV horizontal AFC and oscillator with sync separator for negative sync, using an ECG1086 16-pin DIP. The singletransistor stage is the horizontal drive...

  • Digitally_controlled_time_delay

    2014-11-24 23:53:17139

    Digitally controlled time delay. This circuit generates a time delay controlled by the digital input of the AD7520. The current fed into the integrator...

  • Dual JFET Arithmetic Product Wave Detector Circuit

    2014-11-24 23:52:24110

    In the picture, it uses a couple of differencial signal junction type FET (JFET) to generate the arithmetic product wave detection. The SSB signal is a...

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