Yes it does, if you use a DIN to DIN cable from the radio to the ARB-704.  I have mine connected to my 590 that way.

Steve

----- Original Message ----- 
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, August 29, 2014 16:49
Subject: Re: Ameritron ARB 704 relay


>I don't believe it takes its power from the 590, at least mine does not.
>  I think it is the tipical coax plug or whatever you call those things, 
> centr positive, shell ground.  I think it is worth while, just to 
> protect the relay contacts in the rig.
> 73
> Butch
> WA0VJR
> Node 3148
> Wallace, ks.
> 
> 
> On Fri, 29 Aug 2014, Dave Basden 
> wrote:
> 
>> I used one with my TS-480, but haven't gotten it set up with my
>> TS-590 yet.  I did get the cable to do that though.  It's probably
>> not necessary with even a relatively new amplifier design and my
>> Fl-2100F is over 30 years old now, but it is convenient.  It avoids
>> wiring your own plug to attach to the radio.  As I recall, it takes
>> it's power from the TS-590, so an external power source is
>> unnecessary, but I could be remembering that wrong.
>>
>> 73,
>>
>> Dave, W7OQ
>>
>> At 07:47 AM 8/29/2014, you wrote:
>>> Are any of you guys on the list using the Ameritron ARB 704 relay buffer
>>> between your radio and amplifier and if so how do you like it?  If you are
>>> using the ARB 704, how do you power it.I have one that I have had for
>>> several years and I have lost the wire that I think powers the ARB 704.  I
>>> am trying to find out about it so I know if I need for Ameritron to send me
>>> a new one or if I can get one made up.  I would like to use this relay with
>>> my bedroom radio.  I will appreciate any suggestions on this.
>>>
>>> Thanks much,
>>
>>
>