[Amps] Need for bias switch (CW/SSB)

[Carl]

-100V isnt even close to a full cutoff description since typical operating 
bias in Class C is -90V for 250B's.

Carl
KM1H


----- Original Message ----- 
From: "RCM" <robrk at nidhog.net>
To: <amps at contesting.com>
Cc: "Charlie" <charlie at drhabekost.com>
Sent: Sunday, January 17, 2016 11:26 AM
Subject: Re: [Amps] Need for bias switch (CW/SSB)


> Back then, you keyed the cutoff bias of the amp.
>
> My Central Electronics 20A had -100 vdc out the back that followed the 
> keying and did a full cutoff
> of the HB 4X250's with operating bias set for class C.
>
> No clicks....
>
> On 01/13/2016 03:41 PM, Kim Elmore wrote:
>> I don't think this is true. Class C will generate terrible key clicks 
>> because it won't preserve the keying envelope.
>>
>> Kim N5OP
>>
>> "People that make music together cannot be enemies, at least as long as 
>> the music lasts." -- Paul Hindemith
>>
>>> On Jan 12, 2016, at 09:24, Mike Feher <n4fs at eozinc.com> wrote:
>>>
>>> In CW it can run Class C, but for SSB it has to be linear. 73 - Mike
>>>
>>>
>
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