[Elecraft] Tube Amplifiers

k4ia at aol.com k4ia at aol.com
Thu Dec 31 08:44:54 EST 2009


Interesting that a new article on eHam suggests programming one of the CW  
memories with a series of dits.  You would have to be in CW mode for it to  
work.
 
Buck
k4ia 
k3# 101
 
 
 
 
In a message dated 12/31/2009 4:21:53 A.M. Eastern Standard Time,  
d.cutter at ntlworld.com writes:

Would it  be possible to write a macro to suit  this?

David
G3UNA




> Hmmm.  I think the  software "feature" you want is already in the K3.
> Use, the CW mode,  adjust the keyer to 30 WPM or so, and you have a 50%
> duty cycle pulser  - just hold down the "dot" paddle.  If  you want a
> lower  duty cycle, simply tweak the "weight" option until you get what
> you  want.   If you have a monitor scope, or a general purpose scope  that
> covers up to 30 MHz or so, you can use it to measure the on-off  ratio.
>
>
> - Jim, KL7CC
>
>
>
>  Richard Thorpe wrote:
>> There is a company out there that makes a  little devise for tuning tube 
>> HF amplifier finals.  It uses  a single pulsed tone at a 30% on 70% off 
>> duty-cycle, one can see  the advantage of this device in tuning up those 
>> expensive  tubes.  Could such an arrangement be incorporated in the 
>>  software of the K3? what a handy feature to have for those of us that  
>> cannot live with just a 100 watts.  Happy New Year to  all.
>>
>> R Thorpe KD6LAZ
>>  
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