[Elecraft] K3 hardware AGC experiment shows promise

[Cady, Fred]

Should we call ordering to have a cap or two sent out?

Fred Cady
fcady at ieee dot org 

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-
> bounces at mailman.qth.net] On Behalf Of Wayne Burdick
> Sent: Sunday, December 04, 2011 6:59 PM
> To: Elecraft Reflector
> Subject: Re: [Elecraft] K3 hardware AGC experiment shows promise
> 
> By the way, we'll be happy to send out these surface-mount 1 uF
> capacitors (or whatever we determine is the best value) to anyone who
> would like to try the experimental mod, immediately and at no charge.
> 
> These are huge as SMD parts go. Anyone with a fine-tip iron would have
> no trouble putting one in. There's no need to take the original,
> smaller one off; you can just stack the new one on top.
> 
> If you're in a hurry, you could use any type of capacitor that will
> fit, including an electrolytic. Just be sure to put the (-) end at
> ground if you use a polarized capacitor.
> 
> 73,
> Wayne
> N6KR
> 
> 
> On Dec 4, 2011, at 5:50 PM, Wayne Burdick wrote:
> 
> 
> > The K3's hardware AGC time constant is a compromise between recovery
> > time and IMD due to modulation of the loop. C238, on the bottom of
> the
> > RF board near the front, sets this time constant.
> >
> > We did a little experiment today
> 
> 
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