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Wheatstone Bridge Regenerative Receiver

I wanted to build N1BYT's Wheatstone Bridge Regenerative receiver into a tea tin and for the most part I was successful. I mounted the board on the underside of the lid and several bits of hardware on the tin's body. Unfortunately, wires tended to break after repeated flexing (I kept "needing" to work on the receiver). I've switched enclosures, but not before recording (about a year ago) the cute approach.

This N1BYT design was published in QST in August 2001.

Comments

September 13, 2006 - 19:17 — nt1u

very cool

Very nice Scott.

Bring it down to Nashua if you are coming. I really would like to try it out. What did you use for the mv104's? (or did you find some..).
/dave

October 12, 2006 - 00:34 — N1AIA

I substituted a NTE617,

I substituted a NTE617, which I got from Mouser.

I've repackaged the receiver, but also moved it from 6 MHz to somewhere around 3.5 MHz (I hope). That move isn't complete, as my 10-turn tuning range now appears to be about 1 kHz!

American Micro Semiconductor is listing the MV104 for $6.87.

March 24, 2007 - 23:26 — N1AIA

Now it's on 60

I tinkered with T1 and nearby caps again and have started listening to 60 m. Interesting SWL space. The top of my tuning range is near 5450 kHz. I hear at least 2 ham channels, but think my lower edge misses some of the ham band.

Almost any time I listen I hear someone saying they're making their first contact on the band or have just started trying it out.