The core device IC1 of electronic compass is a piece of hall-effect integration sensor UGN-3501M, its internal structure includes a hall unit and a lin...
The following document contains information related toVolvo 440 electrical installation schematic diagram. It such the wiring schematic for Volvo 440, ...
Color TV chroma demodulator with direct output. The ECG1099 is a 14-pinDIP with tab，R-Y,B-Y, and G-Y output voltages are 12 volts，3.8 volts，and 1...
The microcomputer telephone cost-saving device circuit is shown in the above picture. The circuit is made of anti-wiretapping and central processing. P...
105 MHz gate-2-contralled RF amplifier using a TIS152 dual-gate MOSFET This circuit has been optimized for third-order intermodulation distortion(court...
Resonant-dipole antenna feeds directly into balanced product detector that cancels strong interfering local broadcast signals but adds products of mixi...
The password electronic doorbell circuit is composed of the trigger circuit and music generating circuit, and it is shown in Figure 3-119. Trigger circ...
LTC3202 is an electric charge pump without gates which is produced by Linear Technology Corp., in the figure is the Li-ion battery drive white light LE...
Zero-temperature-coefficient resistors mounted near resistance thermometer element offset variation of lead resistance with temperature.-F. J. Goldwate...
In the figure, there are two projects, MAX1561 booster converter and MAX1573 pump, to drive the LED, and the complexes of the two circuits are almost t...
Uses two 6JH8 sheet beam lubes as red and blue luminance demodulators. Balanced outputs of both polarities on plates of tubes eliminate need for additi...
The animal litter teller circuit is composed of the detection signal wireless transmitter circuit, wireless receiver alarm circuit, and it is shown in ...
Continuous indication of blood pressure, with 3% fullscalle accuracy is obtained by mounting variable-reactance pressure transducer in 5-cc syringe ins...
TV FM sound IF with tube-type audio output stage. The ECG710 contains a multistage wide-band amplifier section, a zener-regulated power supply section,...
1-watt noninverting power amplifier using an MC1554 connected to a single supply. As shown voltage gain is nine (courtesy Motorola Semiconductor Produc...
The principle of automatic washing circuit is shown in figure 1, and220VAC circuitis bucked by transformer T, and it changes to low voltage current. Th...
This circuit shows an AH0014 connected as a basic differential or instrumentation amplifier with a balance adjustment. The balance resistor is adjusted...
The password electronic doorbell circuit is composed of the electronic password circuit and music occurred circuit, and it is shown in Figure 3-118. El...
This circuit shows a CA3256 switch/amplifier connected for a direct-coupled input and output. One of four channels can be selected in parallel with cha...
Generates keying pulses up to 2 sec wide at prf down to 0.1 pps. Oscillator cutoff bias is gated off during pulse operation and switched off during c-w...
The eggs automatic incubator circuit is composed of the power supply circuit, automatic egg turning control circuit and temperature control circuit and...
This circuit shows a 9826 used in an application where high speed at a relatively low gain is required (a gain of 5 in this case). Rx and Cx form a lea...
Here are some air core inductor equations,because sometimes in electronic projects it's needed to design air core inductor, specially in radio frequenc...
Commutator network using N-channel MOSFETs. All semiconductors are 2N4351s. Each switch has a three-input AND gate in series with the gate drive (court...
A PN junction diode is an electrical device that allow current to move through it in one direction with far greater ease than in the other. A semicondu...
Programmable gain noninverting amplifier with selectable inputs. The IH5052/53 chips are 16-pin DIP CMOS analog gates (courtesy Intersil, Inc.)....
The three-port voltage regulator's three ports are input port U1, output port Uo and common port COM which is usually connecting to the ground. Its int...
Chopper amplifier delivers d-c voltage to adder that is proportional to mean blood pressure. Potentiometers in adder permit introducing negative voltag...
The SL521 shown in this figure is intended primarily for use in successive-detection log IF strips, operating at center frequencies between 10 and 100 ...
Can be assembled in small box as toy for small child. If mercury switch is used for S1, siren comes on automatically when box is picked up. MVBR Q1-Q2 ...
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