[grc] An old schematic

[al davis]

On Sat, 23 Sep 2017 12:18:23 -0400
John Halpin via grc <grc at maillist.peak.org> wrote:
> We're in need of a schematic drawing for an old Howe 9000 series console.
> If anyone has one or could knows of where one might found we've love to
> know about.  Thanks,

No luck here, but if you come to the Grassroots Radio Conference Oct
6-9 in Albany, I will be presenting a session "Refurbishing old
equipment", all about how to approach things like this.

Traditional analog mixers really all have a lot in common.  If you know
a little about circuits, you don't usually need a full schematic.  To
probe and guess is often good enough.  Sometimes you can upgrade
them to be much better than they were originally.

Anything that age probably needs to have the capacitors replaced.  It's
less work to build a new one from a kit.