Hi.

Based on Richard's comments, you probably aren't going to be able to 
interface the tuner directly to the radio, but that isn't really a major 
problem.  It simply means that instead of hitting the tune button on the 
radio, you will need to manually roll the power back to five watts or so on 
CW, key the radio and hit the tune button on the tuner it self.  Once it 
finds a match, go back to full power and you are ready to go.

As for powering the tuner, if that one is like the AT2000 Pro, it uses a 
coaxial power plug similar to the ones that were common on cords for HTs 
like the HTX202 and I believe it takes a positive tip polarity.  I've 
probably got about a half a dozen things around the shack that take the 
same plug with the same polarity, all running on 13.8 volts DC.  If I can 
offer a word of advice, however, if you are going to wire that directly to 
your power supply, install a small fuse holder in the positive lead and 
fuse it for about 2 amps or so.  That's because it is awful easy to have 
one of those connectors pull out of the back of the tuner and if it hits 
against something metal like an antenna connector, you could have a short 
circuit that might pop the main fuse on your power supply or melt your 
power cord for the auto tuner.  Fusing the positive lead just seems like a 
good precaution.

73, de Lou K2LKK



At 09:50 AM 7/4/2007 -0500, you wrote:
>Hi Jerry and Group;
>If the tuner runs off twelve volts you can hook it to your power supply with
>no problem.  You will have to change bands manually.
>There is a connector on the back of the 751a for a tuner interphase.
>Whether there is an interphase that would let the tuner and 751a work
>together, however, I don't know.  You don't have to have the interphase
>Jerry to use the tuner.  It just will auto band change and is a cool extra.
>At this point you probably want to get your antenna issues resolved first.
>Icom changed their tuner plug when they went from the 751a to the 835.  I
>was using an at500 and there was an adaptor.
>Richard
>
>
>
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Louis Kim Kline
A.R.S. K2LKK
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