Thanks Steve.
It makes since now.
I will go ahead and use the buffer.
I was using it on the TS430, but something went bad in the PS-430 power 
supply, and I don't have a DC power cord to hook it to my Astron.
By the way, do you happen to know the parts number for the DC power cord for 
the TS-430?
I prefer to use the 430 over the TS-50.
Not as much sighted assistance needed.
Thanks again for your help, and 7 3.
----- Original Message ----- 
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, December 15, 2009 10:34 AM
Subject: Re: TS-50 and ARB-704.


> First I have to  apologize for giving you bad info  over the weekend. 
> Even
> though  you clearly said "phono" I had "phone" in my mind and thought the 
> 2
> jacks in question were something like on the 430, a 1/4 for key and a 1/8
> for external speaker.   never having owned a TS-50, I took  a shot, and
> missed by a mile.
>
> Knowing what you know  now, you have to decide if you really want or need
> the buffer.   The rig seems to be set up for direct connection to the amp
> via  a  pair of rca cables.  Maybe you would want to sell the buffer and
> cable and recoup some of your money, or keep and use it for some margin of
> protection.
>
>
> I just took a fast look at the manual for the buffer.  Since there seems 
> to
> be no place to plug in the pnp cable, you wouldn't use it.   You would
> connect the keying line from the rig to the jack marked "radio" on the 
> back
> of the buffer.  When looking at the rear of the buffer, it is the third 
> from
> the left, right next to the 5 pin din jack.       So your key line goes 
> from
> the rig to the jack marked "radio" and then a cable from the jack marked
> "amp" to the  keying jack on the amplifier.   The "amp" jack on the rear 
> of
> the buffer is the first one on the left when looking at  the rear.   The
> middle jack is "alc" but  you wouldn't use that one as you would connect
> direct from alc  on the radio to alc on the amplifier.
>
> Since you would not use the pnp  cable, you will need to  provide some
> source of external 12 vdc for the buffer.
>
> Yeah, some of it doesn't seem to make sense, but I guess that's why they
> call it amateur radio.
>
> 73, Steve KW3A
> ----- Original Message ----- 
> From: "Rick" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, December 15, 2009 9:26 AM
> Subject: TS-50 and ARB-704.
>
>
>> Hi list.
>> I read the manual for the Kenwood TS-50 from beginning to end several =
>> times.
>> It says on the back there are two phono plugs.
>> One is relay, and the other is ALC.
>> I had a sighted person check and it is exactly like the manual says.
>> I don't know why Ameritron says you need the PNP-7D when there isn't any 
>> =
>> place to plug it into on the TS-50.
>> The instructions that come with the ARB-704 aren't clear to me.
>> I understand you plug one phono cable into the ALc on the TS-50 and by =
>> pass the ARB-704 and plug it into the ALC on the amplifier.
>> The other cable you plug into the relay on the TS-50.
>> Which jack on the ARB-704 do you plug the cable coming out of the relay =
>> into?
>> Also do I need the 12 volt DC power cord, or will the ARB-704 draw power 
>> =
>> from the radio?
>> Step by step instructions on how to hook this thing up correctly would =
>> be greatly appreciated.
>> Like I said the instructions that come with the ARB-704 aren't clear to =
>> me.
>> Thanks in advance for any help, and 7 3.
>>