How much less are you wanting to spend.. I've searched around the net and it's a fairly specialized item. Using 1:1 transformers you'd have to buy 2. Given that, $14 doesn't seem too bad. From looking at the picture it appears the transformer is about 2"x1.75"x1.5" not counting the mounting ears... definitely smaller than a coke can.
BTW. Finally found it on the mfr's website <http://www.specotech.com/cart/products/productDetails.asp?prodID=437> Steve P. ----- Original Message ----- From: "DCFluX" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Thursday, December 30, 2004 6:25 PM Subject: Re: [Repeater-Builder] Re: Speaker Level Mixing > > 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. > > 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. > > > 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? >> >> Yahoo! Groups Links >> >> >> >> >> > > > > > > Yahoo! Groups Links > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
