ARP 2600 Ring Modulator #4014

[Gene Zumchak]

List,

    Has anyone ever bothered to try to locate Alan R. Perlman (ARP) and
see if he would be happy to part with any or all of his schematics?  He
might be tickled if someone asked.  Wasn't his company in Massachusetts?
A telephone directory search?  Good Luck.

Gene Zumchak



Don Tillman wrote:

> As I offered, here's my transcription of the ARP Ring Modulator.
> Enjoy!
>
>   http://www.till.com/articles/images/arp-ring-mod.gif
>
> The obvious caveats: This was done under ugly mechanical conditions so
> there are omissions and maybe some subtle errors.  And it's not very
> pretty.
>
>   -- Don