Here's an interesting item from the ARRL Letter, Friday, August 3. Jim, W8KGI * Morse Code Study in Pennsylvania: A psychology professor at the University of Pittsburgh is conducting a study involvin
Bernie, I'd suggest you take a portable short wave radio along with you to the TV store and check out the set you are interested in. I picked up a little transistor radio from Radio Shack recently th
That letter would be interesting to a lot of people. I'm sure I could get it published in the AWA Journal if you would like, Ron. Can you scan the letter ? I would like to see that one ! tnx John kb2
I'd appreciate it if someone could scan and send me a schematic for the 210 power supply used with the Argonaut 505. Thanks, Jim Hanlon, W8KGI knjhanlon@msn.com ______________________________________
Rob, I use banana plugs to terminate the line from my Center Fed Zepp, and to insert a 40 meter quarter wave line in series with the main feed line for cases where the line impedance is not one my tu
Y'all, I just acquired a Triton IV, the digital model, and I'm having fun putting it on the air. Unfortunately the manual with it is for the analog model, so I have a few unanswered questions that I
Geoff, Thanks for the information. I just tried what you suggested, and the rig did not behave the way you described. So I strongly suspect that the "zero" function is not operating properly. I'll ha
Guys, You should have a look at the May 2008 QST, page 33. The winner of the ARRL Homebrew Challenge competition is featured, the TAK-40 SSB and CW transceiver. It has the following features. It cove
Bill, Before we had digital cameras we just drew a picture of the dial string arrangement. Jim, W8KGI I hope I have the right size. I wonder what we did for projects like this before digital cameras.
Marinus, Thanks for the reference to the S-Match. That's a neat development from my beloved, link-coupled, parallel-tuned circuit tuner. I filed it for future reference. Jim Hanlon, W8KGI -- Original
There is an R. L. Drake Low Pass Filter on ebay, item 320251164898, ending at 12:58 PDT Sunday. Its current price is $8.28 with two bids. It should be a good one. There is also a Nye Viking filter, i
Ed, A properly designed filter should be terminated in its characteristic impedance at your operating frequency, probably 50 ohms, and will present a 50 ohm impedance at its input at your operating f
Bob, Let me first apologize for not replying sooner. I get the digest from the reflector, so I have some delay before I get to see your messages. You asked, "IF the transceiver had harmonics and thos
Doug, Wow, if I understand you correctly your neighbor is experiencing TVI from a 160 meter station that is 70 miles away. That is, to say the least, very unusual. I also understand that your 160 met
Paul, I know you've gotten a lot of good advice about verticals. Here's a completely different suggestion. Put up a horizontal doublet, feed it with open wire or ladder line, and match it with an "an
Bill, Check out the James Millen Society page at http://www.isquare.com/millen/millen-page.htm#4<http://www.isquare.com/millen/millen-page.htm#4> . Under "Schematics and Mfg Documents" you will find
Just had to share a grin with a few folks who would understand. I was all ready to hit the Classic Exchange yesterday (Sunday) with my usual collection of powerful boatanchor rigs like my Globe King,
Leonard, Out of curiosity, is your fan blowing in or out? Lo these many years ago, I put an exhaust fan on the back of my HRO-50 (Hank Pfizenmayer will remember it as the one used at W4VIV/W4RXK in t
It looks like we have found a manual for Bill. You guys just have to know where to look, HI. Jim, W8KGI -- Original Message -- From: Don Buska - The Radio Lab works<mailto:don@radiolabworks.com> To:
If you are using a balanced tuner that makes a DC connection between both sides of the ladder line and the tuner coil, just center-tap the coil and ground the center tap. If you are using some other