I wouldn't say rarely or if ever, that depends entirely on the amp, and 
of course the radio and the ratings of its internal relay.  I've run 3 
of those boxes for years with no trouble, and if I do, lots easier to 
replace the box than send off the radio to replace a blown relay.  to 
each his own...
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Sun, 30 Nov 2014, John Miller wrote:

> Up to you, but to me, it's rarely if ever needed and just something else to
> break. I have several friends who have had more problems with it than it's
> worth and got rid of that box and just opted to the straight cable.
> ----- Original Message -----
> From: "Butch Bussen" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, November 30, 2014 12:54 PM
> Subject: Re: ARB704 Buffer Box Question
>
>
>> Personally, I'd keep it.  I like the added safety, then there is no
>> question you're protecting the internal relay.
>> 73
>> Butch
>> WA0VJR
>> Node 3148
>> Wallace, ks.
>>
>>
>> On Sun, 30 Nov 2014, Tom
>> Behler wrote:
>>
>>> Hello, all.
>>>
>>>
>>>
>>> As you know, I am seriously considering replacing my Tentec 238A manual
>>> tuner and Amaritron AL811H tube amplifier with an external auto-tuner
>>> that
>>> will accommodate high power, and an Amaritron ALS600 solid-state anp.
>>> The
>>> tuner and amp will be interfaced with my TS590.
>>>
>>>
>>>
>>> I currently have an ARB704 buffer box between my TS590 and my Amaritron
>>> AL811H.  This was suggested by our late friend Kevin (K7RX) as a way to
>>> help
>>> protect the relays in the rig.
>>>
>>>
>>>
>>> I am wondering if the ARB704 buffer box would be needed for the new
>>> setup?
>>> One way of thinking is that if I have it, I might as well keep using it
>>> as
>>> an extra layer of protection for the rig.  On the other hand, if it's not
>>> necessary, perhaps I could throw it in with my AL811H when I put it up
>>> for
>>> sale.
>>>
>>>
>>>
>>> Any opinions on this would be appreciated.
>>>
>>>
>>>
>>> Tom Behler: KB8TYJ
>>>
>>>
>>>
>>>
>
>