[Elecraft] K2 Voltage Regulators

Sun May 4 21:59:00 2003

And changing the value of R5 will set the *level* of AGC voltage developed
once the threshold has been reached.

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"
<mailto:[email protected]>

----- Original Message -----
From: "Lyle Johnson" <[email protected]>
To: <[email protected]>
Sent: Sunday, May 04, 2003 6:34 PM
Subject: RE: [Elecraft] K2 Voltage Regulators

> > 8-volt regulator  was putting out more than 8 volts (8.35 Volts, he
> > reported).
> >... might be  affecting his
> > AGC circuit, and presumably numbing the receiver a bit.
>
> You can reduce the AGC threshold voltage by changing the resistor.  It is
> simply a voltage divider biasing a pin on an amplifier.
>
> Earl was apparently uncomfortasble going to less than 33K ohms in his
> radio's divider and opted to try and change the regulator.  But there is
no
> reason that I can see that you can't go to less.  In my radio, a value
> around 27K is right.
>
> YMMV, mine certainly does!
>
> 73,
>
> Lyle KK7P
>
>
>
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be a list member to post to the list.
> Postings must be plain text (no HTML or attachments).
> See: http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com