[Heathkit] Amp Keying Interface?

[Peter Markavage]

Yuck! Keying circuit of whatever... keying relay... keying relay - Sounds
like a telephone switching office design. Solid-state switching is quick,
quiet, and reliable.

Pete, wa2cwa

On Tue, 31 Jul 2007 14:35:56 -0400 john <johnmb at nc.rr.com> writes:
> Yep! Might be nice to put a diode across the coil to clamp the coil 
> when 
> the 12V is removed.
> 
> John K5MO
> 
> 
> At 02:05 PM 7/31/2007, Bob McGraw - K4TAX wrote:
> >Be advised that Harbach Electronics is closed due to health reasons 
> and 
> >not accepting orders at this time.
> >
> >A simple keying interface is a 12VDC coil relay with N.O. contacts 
> 
> >available from Radio Shack.  Enclose same in a small "project box" 
> with a 
> >couple of connectors of your choice.  The 12V is from the FT-847 
> and the 
> >normal keying ckt and the N.O. contacts go to the SB-200.  The 
> project 
> >should cost about $6.00 for all the parts and then have the fun of 
> 
> >building something that works.
> >
> >73
> >Bob, K4TAX