2004 DX Crystal Sets

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Crystal Radio

2004 DX Rigs

If you would like to share your DX rig with us, please email me and I will post it here!
If you don't have a digital camera but have a photo, email me and I will give you my snail mail address. I'll do it for you.
If after it is posted you would like to change something, that is no problem! You can even add photos.
Make your photos as high a resolution as you can, but please keep it under 1.5 meg if you can.

Mike Branson's Contest Rig

"Azbigaz III "

Open Class
Page 1 Page 2 Page 3 Page 4 Page 5

Schematic

Dejan's Contest Rig

Page 1 Page 2
Schematic

Lou Dayich's
"The Bondini"

Larger Photos
Page 1 Page 2

"Most interesting is the primary and secondary coils are made of TWO solid strands of #20 (each strand) twisted communication wire. The primary is 55 turns and the secondary 53. The coils are 4 inches in diameter and are air wound and tied off. The Bondini was used sparingly to glue the coils to the pvc standoffs. The coupling of all coils can be infinately varied.

The trap is 51 turns of #22 magnet wire solendoid wound on a 3 inch form. I used a Bogen transformer and USI sound powered phones.

I used a schotty diode connected at the transformer and wired directly to the "hot end" of the detector coil. The three caps on the left were used in series (in actual operation I normally shorted the 2 bottom caps) to tune the antenna and the remaining cap was wired across the secondary. I was greatly suprised by the performance and logged aproximately 60 stations. The prize was a low wattage station from Arizona, this happened just after local sunset. This is a distance of 2895 kilometers. I got plenty advice and guidance from this site, Steve Bringhurst and other members of the xtal set society. Thanks to all! Lou Dayich"

Mike Tuggle's

"The Lyonodyne"

Larger View Click Here

For More Info Click Here

Dan Peterson

"This is my all-time favorite that snagged 59 stations in seven states, two canadian provinces and Mexico.
I call it the "Litz Blitz". It is to be featured in an upcoming Xtal Set Society Newsletter."

Dave Schmarder

"On the left is my #41 single coil set that is in the hobby class. On the right is my #35 set using a Tuggle style front end and Hobbydyne back end. The sections are on separate breadboards so that coil spacing (about 15 inches) can be achieved. Both sets use 660/46 litz. The headphones are sound powered US Instrument Corp. types cobbled from a handset.

Both sets were built especially for the contests and my listening pleasure."

Dave's web site

Gil Stacy

"Here's a photo of my current dxing mess. Yes, it takes five coils and one toroid trap to run it. The three caps set in plexiglass are 2 single caps which replaced a dual varicap in a modification of the traditional Tuggle front-end, and the third cap controls the detector tank; the three five gang caps control the inductive traps and the stand alone trw cap controls the in line toroid trap. Best overall coupling distance of antenna coil to detector coil is 8-9" separation which amazes me after using solid wire."

Steve Bringhurst's
"The TK2"

For more info Click Here

Darryl Boyd's
"The Baodyodyne"

For more info Click Here

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