[Links for SILICON CHIP magazines]

http://www.siliconchip.com.au/

[Notes on the Link intercom]

Hello Austin,

I for one found your designs interesting having designed and built a few similar phone systems myself over the last 35+ years starting with a 10-line uniselector based PAX.

I was particularly impressed with the audio transformers used as the transmission bridge in your original 2-phone link as proved a point that I had wondered about but not actually tried. Obviously it works but is there a problem with the core saturating due to the DC current in the primary winding?

You mention that you had a 1996 version based on relays; do you still have that circuit diagram?

Andrew

Folks,
I noticed that there's been some 86 members look at the Link design, but so far, no replies. Can someone, anyone email in and tell me what you think? I'm always open to suggestions as to better ways of doing things. I'm also wondering if anyone's actually built one up? even if it's just on your SK-10 breadboard panels. Any takers?

Austin Hellier
Downunder