TV test pattern generator circuit with wireless
The TV test pattern generator circuit with wireless model. To assemble circuit easy, can transmit signal in wireless to video and audio As horizontal line. Read more
2 Crystal tester circuits with PCB
This is Crystal tester circuit using NPN transistors as main. LED1 is light up when a crystal is good and simple oscillator circuit works. Read more
TDA2005 Amplifier Circuit Diagram
Build this TDA2004 / TDA2005 amplifier circuit diagram with a 20W output. It is a BCL audio amplifier that uses a 12V supply. Read more
Many ways to increase current transformer
To increase current transformer on the power supply. To save money with this idea, just only change connecting of on original transformer windings. Read more
Simple video amplifier circuit
This is Simple video amplifier circuit using LM359. That use a op-amp IC number: LM395 or similar, which can work in high frequency such as LM3900 series […] Read more