[R-390] Speaker connections
Scott, Barry (Clyde B)
[email protected]
Mon, 4 Mar 2002 14:56:31 -0600
The RS xfmr has multiple taps on the primary side. One works better than the others. I think it's about 500-ohms but I don't recall which tap that it is.
Barry(III) - N4BUQ
On Mon, Mar 04, 2002 at 03:26:31PM -0500, Mel Williams wrote:
> I think I saw an article on one of the R-390 links/lists that showed how to
> use a 70v line transformer from Radio Shack to connect a speaker to the
> unit. Could someone please direct me to this information if it does exist.
> Thanks, Mel Williams
It's a trivial thing; I did it w/o schematic.
On the usual sort of 70V line transformer, there is a hi-Z
winding. That goes across the Line Out terminals.
On the Lo-Z winding, there usually are taps to match various
speaker impedances. Choose the one that fits your speaker.
Simple. Easy. Even _I_ got it right, and that's saying something.
--
Mike Andrews
[email protected]
Tired old sysadmin since 1964
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