[SignalOne] Re: CX-7 Driver Board

Sat, 11 Jan 2003 09:59:20 -0800

Good show! Glad that you finally got it going.  73's from Fern VE7GZ

-----Original Message-----
From: W2AGN <[email protected]>
To: [email protected] <[email protected]>; [email protected] <[email protected]>;
[email protected] <[email protected]>
Date: Friday, January 10, 2003 11:39 AM
Subject: [SignalOne] Re: CX-7 Driver Board

Well, worked on the CX-7A again today, checking bias, etc. All seemed OK.
I had replaced the FET (Q1) on the driver board some time ago, with a
3N201, which one of the Newsletters said was a good replacement. Out of
desperation, I popped in an MPF-102 I had, not expecting it to work.

Bingo! I got drive! In fact, a lot of drive. I backed down R-19 to about
halfway. Checked the signal though, and it's "good" RF, not oscillating.

I set up the final bias, and the "0" volt on collector of Q5. Seems all
is well.

---
+-++-++-++-++-+   John L. Sielke
|W||2||A||G||N|        http://www.w2agn.net [UPDATED]
+-++-++-++-++-+    Ex-K3HLU,TF2WKT,W7JEF,W4MPC,N4JS
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