ePanorama computer circuits


Analogue to digital converter for PC serial port

Get power out of PC RS-232 port

RS-232 surge protection

Digital to analogue converters for PC parallel port

Get power out of PC parallel port

Parallel port interfacing made easy

Simple printer emulator adapter

Connect two CD-ROM drives to one soundcard

Headphone driving circuit for soundcards

Simple MIDI tester

Sound Blaster Microphone Preamplifier

VGA converter for video projectors and fixed frequency monitors

VGA to TV converter

PC speaker volume control circuit

Sega 3D glass interfacing circuits