[Elecraft] K2 - KPA100 to much output on 80/40 m in SSB with Comp on

[Don Wilhelm]

Werner,

No influence on the mic gain at all.

73,
Don W3FPR

Dr. Werner Furlan wrote:
> dear Don, 
>
> thank you very much for the clear and quick response!
> This is really not hard to do and I will report if it helps. (up to now all your 
> hints were vy helpful ;-))
>
> will this have a negative influence on the Mic gain in QRP mode?
>
>
> 73! de Werner OE9FWV
>
>
> Don Wilhelm schrieb am 17 Feb 2008 um 14:47:
>
>   
>> Part of those modifications is the KI6WX KSB2 Increased RF Gain Mod.  That
>> mod worked fine with the QRP K2, but after the KPA100 was out for a while,
>> some folks noticed that they had the same problem that you describe when
>> the mod was installed.
>>
>> The problem is that the ALC circuits on the KSB2 board are being 
>> overdriven.  Add the following changes:
>> On the KSB2 board, 1) change R9 to 1.5k; 2) break the path from KSB2 
>> board P1 pin 6 to the base of Q1 and insert a 1k resistor from P1-6 to the
>> Q1 base.
>>
>> Those additions should calm the behavior down to normal.
>>     
>
>
>