It depends on the radio and the cable.  I bought my cable on amazon or 
ebay, which is just the proper dynn plug for radio and two rca plugs on 
the other end, alc and keying lines.  I had to power box from external 
source.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Fri, 29 Aug 2014, Tom Behler wrote:

> Sorry:
>
> Dave is correct.
>
> The ARB704 is powered via the radio.
>
> I just checked.
>
> No additional DC power connection is required.
>
> Again, sorry for the confusion.
>
> Tom Behler: KB8TYJ
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Dave Basden
> Sent: Friday, August 29, 2014 11:14 AM
> To: [log in to unmask]
> Subject: Re: Ameritron ARB 704 relay
>
> 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,
>
>