video and audio distributor 6-channel audio video multiplexer circuit max497 and lm833 amplifier integrated based on the supply voltage of 12 volts dc 12v 78xx series positive regulators integrated with düşürülüp 555 timer integrated with the negative translated to different applications can be useful
MAX497 LM833 Amplified Audio Video Multiplexer
Source: http://www.siliconchip.com.au/cms/A_101573/article.html
Audio Video multiplexer Circuit schematic pcb files alternative link:
Audio Video multiplexer Circuit (amplified) LM833 MAX497 ZIP File Password: 320volt.com
PIC16F877 Series I/O Circuit Analog Control System PLC Sampler
I/O control analog sampler plc system based on microchip pic16f877 circuit output serial rs232 pc connection is used the uln2003 in max232 IC with sag. pcb diagram 32-bit windows control program in other drawings, and is written in the source files, pressing the hex.
PIC16F877 I/O Project