Poor mans CCTV switcher

["PatrickLidstone" <patrickl@xxxxxxx>]

Spent the afternoon meddling with some electronics, and am very 
pleased with the results. 

I can now select, under software control, one of four video sources 
using a couple of quids worth of components (basically 1 chip [4066 
analogue switch] + suitable connectors and power supply) connected to 
the PC's parallel port. The same technology could also be used to 
switch line-level signals, perhaps for zoned announcements. It's not 
hi-fi quality of course, but absolutely fine for CCTV.

A writeup & circuit diagram will follow on the website when I get a
chance.

PS. And it's xAP enabled so it can be readily remote controlled :-)
Patrick

Yahoo! Groups Sponsor

ADVERTISEMENT

http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx 
Subscribe:  ukha_d-subscribe@xxxxxxx 
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx 
List owner:  ukha_d-owner@xxxxxxx
List of UKHA Groups here - http://groups.yahoo.com/group/UKHA_Grouplists/

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.