[Amps] Yaesu Orange Button

[Jim Forsyth]

It's orange on mine. I ran it for several years in class A, less than 
full power, into a 6m transverter. I was very active and never had a 
problem with it.

Jim, AF6O



On 5/24/2015 3:51 PM, Alek Petkovic wrote:
> On the FT-1000MP MKV, the button is not orange and power is internally 
> limited to 75 Watts.
>
> However, as Charly said, you must NEVER use less than 75 Watts, as the 
> MKV cooling system is p1ss poor and the finals WILL burn up. I found 
> out the hard way and thankfully, I was able to source some "real" 
> replacements and the radio was able to be repaired. I think they are 
> BLF147 or something like that.
>
> Anyway, take care, cos they are very hard to find. You can get the 
> re-badged Chinese reconditioned version easily but genuine ones are 
> very hard to find.
>
> 73, Alek. VK6APK
>
> On 24/05/2015 11:06 PM, Roger (K8RI) wrote:
>> The "Orange button" is the Class A switch, but it should not be run 
>> at more than 75 Watts. It just switches the bias.
>>
>> 73
>>
>> Roger  (K8RI)
>>
>> On 5/24/2015 10:44 AM, greg greene wrote:
>>> " What about the Yaesu transceivers with the ORANGE button (some 
>>> call it
>>> red)?  Any Yaesu owner has stepped up to the plate and said he just 
>>> uses
>>> his orange button on (ALWAYS at full power, max RF power knob fully
>>> clockwise).... and explains and extolls that strategy to put out 
>>> cleaner
>>> signals???"
>>>
>>> What is this 'orange' button of which you speak?
>>>
>>> Greg
>>> VE7GPG
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>>>
>>
>>
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>