The New England QRP Club invites you to check in to our weekly net, join us at one of our gatherings, build a NEScaf or 79er, work WQ1RP, participate at NewEnglandQRP.org, or simply enjoy your QRP with our 73.
I built a filter a few weeks ago and it works great. I told a friend of mine and he ordered and built a kit too.
He was not as fortunate as I was and his filter is dead! We've have checked the pcb for problems like soldering, wiring, etc and tested the regulator, the clock and the audio amp and they are all working fine but no signal comes through the filter, i.e. the SCAF chip is not working.
I finished the filter and did the setup last evening, it still needs an enclosure (at the moment it's strung out across the operating table, in best QRP builders tradition), and I am so impressed with it's performance. Definately using it in tonights NAQCC Sprint. I think I'll be ordering a couple more in the near future for inclusion inside projects. Terrific kit.
Tns Reply Bruce: I meant touching bench Amplifier prod to pin 5 there was no audio for the bench amp to reproduce, touching leg 3 with a prod and finger seams to make the 386 come alive with hum so I assume that part is working. And yet I have a signal on leg 3 of 386, I now it sounds ridiculous. Having a signal on pin 3, and 386 seems to be working, and yet no signal on pin 5. I'm back to the bench for another look-see. Brion
I enclosed my Nescaf filter in a round cat food can. I'm using it with the can upside down for cosmetic reasons and once I got the filter board inside the can I used Goop glue to put a regular tin can lid on the bottom. It is working great. The filtering is fantastic and the sidetone is the best I've ever heard. I feel like I'm using a new, high dollar rig. I'm using it right now on my Omni D. The Omni D has always been a great rig and is my main rig. However, the addition of the Nescaf filter is so good that words do not do it justice. I am one satisfied customer. The audio is pu