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Published on Sep 22, 2009
Here's my second version of the radio I made earlier - and it's now Re-generative. I've added an BF240 for the regen, and a lot of caps to keep it in balance without too much interference, quite tricky job, but it ended up working as you can hear, it receives a lot of stations (maybe right when I took the video, as you can only hear a few) but I've picked up at least 10 stations + 2 rtty transmissions within an hour on a indoor string antenna. You can hear that it is very selective and locks onto the stations nicely.
I think I'll make some sound fidelity improvements, call it a day, and put it in a box with several coils & switches to make it receive even more, maybe throw in a frequency counter at a later point.