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9_channel_plus_fixed_priority_cha_nnel_logic_for_PF_scanner_
2014-11-26 07:37:111189-channel plus fixed-priority-cha nnel logic for PF scanner/monitor receiver (courtesy Motorola Semiconductor Products Inc.)....
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CASSETTE_DATA_READOUT
2014-11-26 06:21:01104Uses separate circuits haying threshold provisions for both positive and negative peaks, for reading data stored on cassette tape at 15 in/s. Head outp...
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FET_CASCODE_VIDEO_AMPLIFIER
2014-11-26 04:32:20114The 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...
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DELTA_TV_SOUND
2014-11-26 04:26:54131Costs less than ratio derector sound system. Uses discriminator circuit with triode operating us power detector, with cancellation of undesired aim fun...
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APERTURE_CORRECTING_CIRCUIT
2014-11-26 04:26:33128Diode D2 of keyed clamp acts as conventional peak rectifier d-c restorer for tv camera circuif. -D. G. Cartoon, Designing Transistorized Television Cam...
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CONDUCTIVITY_TESTER
2014-11-26 03:22:49154For nondestructive testing of printed-circuit conductors, through hole plating, soldered joints, and coils, in resistance range from 0 to 50 milliohms ...
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163_MHz_oscillator_for_low_side_injection_in_CB_operation_us
2014-11-26 02:41:3315616.3 MHz oscillator for low-side injection in CB operation using a TIS148 dualgate MOSFET(courtesy Texas Instruments Incorporated)....
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EMOTE_TELEPHONE_RINGER
2014-11-26 01:10:23143When 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 ...
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The structure diagram of LDl001
2014-11-25 21:48:55107Because the frequency and duty factor changing of PWM signal is much larger, it can not convey simply through transformer.So SCALEis equipped with LDI0...
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High_speed_FIFO_memory_using_the_MC10143_register_file
2014-11-25 19:39:33105High-speed FIFO memory using the MC10143 register file (courtesy Motorola Semiconductor Products Inc.)....
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CAMERA_SHUTTER_CONTROL
2014-11-25 19:38:25166Keeps camera shutter open for predetermined time, to photograph scope as radiation pellet moves past a succession of radiation detector tubes facing co...
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COLOR_FOR_TV_TYPEWRITER
2014-11-25 18:56:09123Uses 3.579545-MHz crystal osdllator to drive string of CMOS buffers forming digital delay line. Output delays caused by propagation times in each buffe...
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IGBT Absorbing Circuit
2014-11-25 17:39:03169Except 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...
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A_D_dividers_using_the_AD7520_18_pin_DIP
2014-11-25 17:34:05116A/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...
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Miniature Black and White TV System
2014-11-25 16:01:18100The 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...
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Chicken male and female discriminator 2
2014-11-25 15:10:04212The chicken male and female discriminator circuit is composed of the pickup amplifier circuit, frequency selection circuit and LED driver circuit, and ...
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CCTV_REPEATER_POWER_SUPPLY
2014-11-25 14:36:03138CCTV REPEATER POWER SUPPLY-Operates from 24.v battery at transmitting terminal. C1 isolates battery voltage from terminal equipment, and L1 prevents sh...
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Inductive electronic doorbell 1
2014-11-25 14:09:07175The inductive electronic doorbell circuit is composed of the inductive electronic switch and music generator circuit, and it is shown in Figure 3-115. ...
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New degaussing principle circuit
2014-11-25 12:28:34198Because the voltage on capacitor C2605 can not mutation, this high level signal thorugh R2602 resistor first charges to C2605, because charging time co...
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Three-Port Voltage Regulator Basic Application Circuit
2014-11-25 11:03:56172The picture shows the three-port voltage regulator basic application circuit (for example of 7805). The input AC 220V voltage would be through the tran...
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Black-And-White Wall Hanging Visible Doorbell Circuit
2014-11-25 10:07:53133As 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...
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LT1766 Application Circuit
2014-11-25 09:12:44115The picture (a) shows the LT1766 internal equivalent circuit. In the chip it has the 200kHz oscillator, driving circuit, switch tube and other all func...
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Regulator Power Circuit With Output Of 6V/5A
2014-11-25 08:56:34153The 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...
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SID2141X Video Preamplified Circuit Diagram
2014-11-25 07:53:1670SID2141X is a kind of video preamplifier ICand it iswidely used in a variety of domestic and imported color monitors. The SD2141X integrated circuit co...
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HEART_RATE_REGULATOR
2014-11-25 06:16:56149Senses arterial pressure and differentiates pressure signal to eliminate mean pressure and produce required sharp spike at beginning of each pressure p...
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Color_TV_chroma_signal_processor
2014-11-25 04:59:19166Color TV chroma signal processor. The ECG728 provides subcarrier regeneration and total chroma signal processing prior to demodulation. The coils of th...
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BALANCED_DIODE_COLOR_BURST_GATE
2014-11-25 04:18:44134Used in automatic video-processing amplifier that instantly compensates for wide variations in color or monochrome input signal levels, to maintain out...
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TV_horizontal_AFC_and_oscillator_with_sync_separator_for_neg
2014-11-25 02:33:03105TV horizontal AFC and oscillator with sync separator for negative sync, using an ECG1086 16-pin DIP. The singletransistor stage is the horizontal drive...
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Digitally_controlled_time_delay
2014-11-24 23:53:17146Digitally controlled time delay. This circuit generates a time delay controlled by the digital input of the AD7520. The current fed into the integrator...
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Dual JFET Arithmetic Product Wave Detector Circuit
2014-11-24 23:52:24124In 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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