[Elecraft] more k1 tweaking
Rod N0RC
[email protected]
Sat Dec 29 15:10:04 2001
Mystery resolved.
----- Original Message -----
From: "Rod N0RC" <[email protected]>
To: "Elecraft-list" <[email protected]>; "Low Power Amateur Radio
Discussion" <[email protected]>
Sent: Thursday, December 27, 2001 12:10 PM
Subject: [Elecraft] more k1 tweaking
> Folks,
>
...
> A mystery to me is the XFIL/TONE line fed into the AF
> stage via C72. Ideas on why that is done?
>
The XFIL/TONE line is dual function, XFIL supplies the control signal
to vary the XTAL filter width via the varactors. TONE is the sidetone
during XMIT. C72 injects the tone into the final audio amp.
***Happy Holidays***
73, Rod N0RC
Ft Collins, CO