[Elecraft] Re: K3 ALC polarity fix

wayne burdick n6kr at elecraft.com
Tue May 6 12:28:19 EDT 2008


Jerry Flanders wrote:

> Most amps in common use provide a negative-going ALC voltage. And most 
> rigs in common use are compatible with this. The K3, however, requires 
> a positive-going voltage.
>
> According to the K3 FAQ at 
> http://www.elecraft.com/K3/K3FAQ.htm#SignalArchitecture , " Once ALC 
> is working to our satisfaction, we'll provide simple interfacing 
> information that will allow the use of negative control voltages 
> (probably a resistive divider pulled up to a positive supply, or at 
> most an op-amp circuit)."

Jerry,

The ALC function is still disabled, but I plan to turn it on and 
provide the interface details by the end of this week. Would you like 
to test the implementation prior to general release?

73,
Wayne
N6KR

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