8 Relay Control Circuit

8 Relay Control Circuit R1-8=4.7 Kohms T1-8= BD139 (R1-8=15 Kohms if T1-8=BD679) RL1-8=6V-24V dc Relay D1-8=1N4148  

TDA7294 150 W Power Amplifier

This is power amplifier based on IC TDA7294 with output power 150W with 8 ohm impedance, source voltage + - 25V. for circuit see image below...

Mosfet Amplifier with power output 400W

See figure below its power amplifier using transistor mosfet as amplifier. Mosfet Amplifier with power output 400W

230Volt LED Circuit

This is a circuit that is used to menhidupkan LED with voltage 230Volt, 230Volt it so that the voltage must be lowered in accordance with th...

Skema Rangkaian Pengapian Motor - CDI

The CDI ignition circuit produces a spark from an ignition coil by discharging a capacitor across the primary of the coil. A 2uF capacitor i...

10Mhz to 1 MHz Frequency Converter

10Mhz to 1 MHz Frequency Converter Circuit Part ListIC1 7404 = 1 IC2 7490A = 1 R 1 K = 2 R 3.3 K = 1 C Trim Polymer 39 pF = 1 C Electrophore...

Control Relay Circuit with 9 Second

See figure below its Control Relay Circuit Schematics.

6 to 12 Volt Converter

Below its a converter circuit voltage from 6 Volt to 12 Volt DC. 6 Volt to 12 Volt DC Part List : R1, R4 2 .2K 1/4W Resistor R2, R3 4.7K 1/4...

230 - 400 Watt Power Amplifier MOSFET

Amplifier circuit below is a series of amplifiers with the amplifier transistor and mosfet. This amplifier output power ranging from 230W up...

800W Power Amplifier MOSFET

This Figure is a schematic power amplifier with power 800 Watt and driver and booster using MOSFET. Audio Power Amplifier with power output ...

1.3 - 12.2 VDC Variable Power Supply

Power supply circuit to generate output below were variations between 1.3V DC to 12.2V DC with 1A current. In addition, the power supply cir...

System circuit (not) Minimum (Evaluation Board) AT89C2051 and AT89C4051

Maybe we are more familiar with the term Minimum System AT89C2051 circuit, but this time I present a circuit which is not only a series of M...

200W power amplifier complete power supply

This 200W power amplifier circuit using IC STK 4050. STK 4050 is a power amplifier module is very powerful, because the IC is already a modu...

Simple Inverter with Two Transistors

The series below is a simple inverter circuit that will change the voltage of 12v dc to 220v ac, with use drive transistor 32 as its tip. I...

Improving Performance Bass Amplifier

Stereo power amplifier is less in the bass tones, but if a speaker that sounds just feels solid bass sound, there are several possibilities...