The output of the WR-3GX is designed for mini-stereo headphones (the kind used with iPods, Walkmans, etc.) just like its predecessor, the WR-3 (see WR-3 Guide and documentation in this website--link below). ORDER BUTTONS (Paypal) ARE AT THE BOTTOM OF THIS PAGE. If you wish otherwise, there are ordering instructions for money-orders.
The WR-3GX also comes with "Auroral Choruses 1 to 3" multi-album MP3/PDF/JPG CD-rom. This has the WR-3/VLF Listening Guide in it too.
This is my answer to Paul Taylor's very cool letter copied at the bottom of this page, a letter sent to me about 08 July 2006.
I built a WR-3 receiver circuit-board into a larger enclosure in order to accomodate THREE controls, extra components, and the addition of a 1/4-inch mono phone jack for a guitar (etc.) pickup, and it has the usual BNC antenna-jack for a whip antenna to use the WR-3ga/GX as a VLF radio receiver to "probe the electrosphere."
The three controls are: 1) the usual audio amp. gain/ ON-OFF switch the regular WR-3's have; 2) an actual audio volume control pot. between the input FET stage and the LM386 audio amp for the headphones. 3) a high-pass control pot./switch that switches and dials in a 150 mH choke that acts as a high-pass filter when switched in - for emphasizing those higher musical notes or VLF sounds (and most-importantly, you can listen to VLF closer to AC powerlines with the high-pass filter switched in, at the expense of lower audio frequencies). **I now include a 9v LITHIUM battery (rated for 35 hours at 30mA drain - since the WR-3GX draws about 6-10 mA, the battery time is about 80-plus hours.)**
I tried this on about 08 August 2006, as shown in the photos of the floor of my shop adjacent to my radio room.
The outside photos in the montage of 4 pictures above were taken 11 August 2006 in the high-desert near Darwin, California - the first time I took the WR-3ga (WR-3GX) prototype into deep-quiet country away from the AC powergrid by 3 miles, and happily during a rare and pleasant mid-morning whistler event emanating from ligntning storms a few hundred miles to the east and south-east (Arizona Monsoon).
There were puretone and fuzzier whistlers - at least a few per minute, sometimes a couple at a time, some of the stronger lightning static bursts launched considerably loud whistlers - all conveniently at 10 a.m. and later local time - another example of the surprises in store in VLF listening. Chances are good that there were nice whistlers earlier that morning and night. On the VLF soundbites page 1 (and MP3 file-link below) you will hear a nice whistler recorded with this receiver.
Hello Stephen,
I bought a couple of WR-3s from you last year and just
recently found a new use for them. I suspect that you or somebody else has probably thought of this but in my excitement I figured I'd pass it along anyway. I have wanted a portable practice amplifier for my electric bass guitars for sometime now but didn't care for what was
already available on the market either due to the price or due to
flimsy construction. Then all of a sudden it dawned on me... the WR-3!!!...all I need is a small portable amp to use with my headphones and gee isn't the WR-3 in essence an audio amplifier! So I got out my Steinberger XT-2 bass and assembled an adapter to get from 1/4 inch headphone plug to BNC and ...insert drum roll here... I was off an running. The WR-3 works great. You have to use the volume control on the guitar to achieve the best listening level as the volume control on the WR-3 doesn't have much effect until you get to the upper end of the pot, at which point you get a nice mild level of distortion...cool! The neat thing is that the Steinberger has passive electronics and I was still getting great volume levels so it ought to work great with one of my Ibanez basses with active elecronics. Anyway I thought I would pass along my discovery and excitement to you. It's not to often in this world to get such a great toofer like the WR-3.
Thanks again Stephen for such a versatile product!
Sincerely, Paul D. Taylor/WA6ENT
'Whizzer' type whistler (8 sec. / 116 kb) - maybe one occurrence every few minutes, occurred on the morning of wednesday 11 July 2007 at about 1245 ut / 0545 Pacific time - recorded hand-held with WR-3ga/WR-3GX receiver and Sony minidisc recorder.
(Click button only once and verify quantity is correct)
Price: WR-3GX = US$239.00 plus $15 postage = $254.00 to U.S./ Canadian locations via USPS Priority-Mail/Letter (package) Air Post.
(Click button only once and verify quantity is correct)
Price: WR-3GX = $239.00, plus $20.00 postage/SH via USPS Global Priority-Mail or 1st Class Air Mail, where applicable; (=US$259.00).
