[ICOM] Internal tuners

[Larry Young]

Dwayne, I can give you two reasons why it may not be a good idea, at least here in the States. 1.Depending on the circuitry employed in the amp's input, It is possible to have some of the Amplifier's circualating RF cathode cathode pass through the exciter's tuner  which it may not be designed to handle.  This is a rare occurance, but is still possible. 2. An amplifier on 10 Mhz may produce output power in excess of the rules for the 10 Mhz. band.
Larry K4LXV
 

    On Saturday, January 9, 2016 3:51 PM, Dwayne <863 at telus.net> wrote:
 

 Tnx Julio,,  Oh and about the 200watts,, Yes I think you folks in the states 
are limited to 200 w,,and I can understand that reg. only 50 Khz.  I have 
never driven this amp up to its limit,, But my thinking is to get up to 250 
(thats what this 775 will do ) Its easier on the radio.. with helpfrom the 
amp.. Useing this 775 is like driving one's Town Car to work everyday...

  Tnx everyone
----- Original Message ----- 
From: "Julio Peralta" <jperalta4 at verizon.net>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Saturday, January 09, 2016 1:18 PM
Subject: Re: [ICOM] Internal tuners


>I think the rule of thumb is not to run an auto tuner in a rig into another 
>auto tuner either a standalone tuner or an auto tuner built-in to an amp.
>
> I think you're OK running it into your amp.
>
> Julio, W4HY
>
> -----Original Message-----
> From: Icom [mailto:icom-bounces at mailman.qth.net] On Behalf Of Dwayne
> Sent: Saturday, January 09, 2016 3:03 PM
> To: ICOM Reflector
> Subject: Re: [ICOM] Internal tuners
>
> H i Fern tnx for the reply..  Well I have heard that on the air and quiet 
> sure I have read that on the internet some where and just wanted to be 
> sure..  Dwayne
> ----- Original Message -----
> From: "Fern Rivard" <crc at cyberlink.ca>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Saturday, January 09, 2016 12:47 PM
> Subject: Re: [ICOM] Internal tuners
>
>
>> Who said that Dwayne?  I don’t see any reason as to why you can’t use
>> the tuner on 10 mhz.
>> Fern
>>
>>
>> -----Original Message-----
>> From: Dwayne
>> Sent: Saturday, January 09, 2016 12:20 PM
>> To: ICOM Reflector
>> Subject: [ICOM] Internal tuners
>>
>> Hi Name is Dwayne  (ve6qx).. I'am trying to understand why its not a
>> good idea to have the internal tuner in my Ic-775 Dsp on when driving
>> a pair of 3-500's  grounded grid..  The reson I want to do this is
>> because on 10 Mhz.  the input circuit to the amp has a s w r of about
>> 1.9,, because the amp was built before 10 mhz. became popular to use.. 
>> They used the same
>> inpuit circuit for 10 mhz. as 14 mhz.    Anyone who can offer a good
>> answer please..
>>  Dwayne
>>
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