Hi First make sure your 9 volt battery is good. It should measure at least 8 volts or higher.
My N-Gen did not work also when I built it. The problem was the Zener diode was not producing noise. This sometimes happens with a particularly "good" diode. Remember this noise is normally an undesirable quality of a zener diode. I replaced the diode with a 2N3904 transistor using only the base and emitter leads. 2N3904 and 2N2222 transistors make fairly good noise sources used this way. Just connect the emitter-base junction so it is reversed biased and it will break over at around 5 volts just like a zener diode. If you have several transistors select one with the best noise output. Don Brown ----- Original Message ----- From: "Nick Waterman" <[EMAIL PROTECTED]> To: "Elecraft Reflector" <elecraft@mailman.qth.net> Sent: Sunday, January 29, 2006 9:23 AM Subject: [Elecraft] NGEN - is it working? > Hopefully not a silly question... > > If I connect NGEN to my K2 but leave it switched off, I have a certain > level of background noise. If I turn NGEN on, there's no noticeable > increase in background noise. > > Have I missed something? Is AGC compensating for the increase in noise? > ... or is my NGEN broken? I built it over Christmas and I've never > actually noticed it working. The lights "do the right thing", but apart > from a very brief "chuff" when I switch it on, I'm not convinced it's > producing any actual output. > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
