At 06:25 PM 12/30/04, you wrote:
>I wouldn't trust the local stereo shops as far as I could throw them.
>
>Example:
>I saw a certified installer cut 8 inches of zip cord off of the reel
>Then he split it into 2 wires and then butt spliced the wires back to
>the original reel of wire! I didn't even bother to make him feel like
>a dumb ass, I just left.
OK, so you feel that one "technician" was an ass.
Does that make all shops worthless?
And all the products they sell?
If one McDonalds shorts me on an order, that does
not convict all McDonalds locations.
>Also I need something a little smaller than a coke can,
>preferably 2.5 X 1.9 square, height doesn't matter, but
>needs to solder to a PCB.
Any audio transformer that has enough iron in it to handle
the audio output of a Maxtrac at full volume without saturating
(i.e. several watts) is not going to be tiny.
The "coke can" transformers I saw were 50 watt units.
There are smaller ones - a lot of the dash mount receivers
are in the 30-35w region. There are others that handle 10-15 watts.
Just look around. Maybe in another, different, stereo shop.
You asked for something to scratch your itch. I gave you an idea.
You are welcome.
Mike
>On Thu, 30 Dec 2004 18:18:49 -0800, Mike Morris WA6ILQ <[EMAIL PROTECTED]>
>wrote:
> >
> > Go over to your local car stereo shop - the place where they
> > sell those 500w amps and build the latest and greatest
> > boogie buggys or thump trucks - and get a pair of speaker
> > isolator transformers. They may not call them that, but
> > picture a 8 ohm in / 8 ohm out transformer about the size
> > of a can of Coke or Pepsi, or a little smaller.
> >
> > Put one on each radio. Test by putting a speaker on the
> > secondary. It should work normally.
> >
> > Unhook the speakers. Wire the secondaries and the
> > speaker all in parallel.
> >
> > A friend has two of these setups in his vehicle, on two
> > Kenwood 742s... one radio is 10m / 6m / 2m and the
> > other is 220 / 440 / 1200mhz, and each radio has two
> > speaker outputs - the selected channel and the
> > nonselected channels. He has the selected channels
> > fed to one speaker (in the left door) and the non-selected
> > channels fed to a second speaker (in the right door).
> >
> > Car stereo shops have a few things to offer the ham -
> > like decent multiple fuseblocks, good automotive
> > DC wire, and speaker transformers. It's worth
> > spending an hour perusing their offerings...
> >
> > Mike WA6ILQ
> >
> > >--- In Repeater-Builder@yahoogroups.com, DCFluX <[EMAIL PROTECTED]> wrote:
> > > > Anyone had experience with mixing the speaker output of 2 radios,
> > > > Say Motorola GM300's to one speaker?
> > > >
> > > > I originally tried a couple of resistors but I may have the wrong
> > > > values as they got hot as hell and one started smoking, I was
> > > > using 2 .82 ohm at 2 watt resistors for each radio, one resistor
> > > > in each speaker lead and at the center the speaker. My next
> > > > best guess is using a multiple winding transformer with three
> > > > windings of 4 ohms, but finding information on how to wind a
> > > > transformer to do that is impossible these days. Any Ideas?
> >
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