Arun Horne wrote:
>
> Can anyone draw me an electrical diagram of how to adapt the plans for a MD
> interface at http://www.bazginge.demon.co.uk/images/MD_remote.jpg
> such that they no longer use relays but are replaced with an IC (4067?).
> This should make the kit much cheaper I think but I am not clear about the
> design of this IC. I read a description of how to do it but it wasn't too
> clear. I would be really greatful if anyone can sketch me a copy and scan it
> and email it to me. If it is of any consequence I am using a Sony MZ-R37 and
> would like to use the winamp plugin also available from the page where the
> above plans are.
Not sure about the 4067, but you could use a 4066. The 4066 is an old
and common chip that had 4 solid-state switches in it. Each switch is
ON with a +5V TTL signal on the control wire, and OFF with 0V on the
control wire. You would need 3 of them, but they are cheap, much
cheaper than relays. This is actually the first I've heard of a 4067,
what's the difference? I think if you search the 'net, you will come up
with datasheets.
Shawn
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