Hi Mike, Maybe the heterodyne oscillator for 80m has low output, or it may be far enough off frequency to be attenuated by the 80m filtering. If possible, follow the RF from the PTO through the mixer
Hi Bill, I also have a spur near 21.320, so I'd guess it's normal. Rebuilding the PTO is actually pretty easy. Getting it out is usually the hardest part because it's different for every radio. It so
Hi Roger, If you really want a good filter for the Triton, take a look at "Add a Crystal Filter to Your Ten-Tec 540", appearing in the Sep 1981 issue of QST on page 16. I made one up for my Argonaut
Hi Wally, Take a look at my website (www.k9ew.us) under Projects / Argonaut 515 PTO. The 509 and 515 are very similar, and I've documented the disassembly / assembly process for getting to the PTO. G
Hi JT, I know I can't do it on my Argosy because of the frequency drift. So I would think any of the frequncy synthesized Ten Tecs would be about as far back as you could go. This does not include di
I've repaired several knobs this way, and I now do it as preventative maintenance on all my Ten-Tec knobs. See the description (sorry, no photos yet) on my website at http://k9ew.us/knob_repair.htm.
Yes, same idea, but much smaller, less expensive, and battery operated. You can make your own enclosure, and paddles if you want, or you can buy them prefabricated.. I bought mine from CW Touchkeyer
Hi Gary, There's an easy-to-build wattmeter that's pretty accurate that I've been using for years. It was designed by Roy Lewallen, W7EL, and the article appears in Feb 1990 QST. You might find it o
Again, no, but there is a program that will remember the settings so you only have to do it once. I have been using Romac's "Sound Card Management" program, available free from www.romacsoftware.com.
Has anyone had a problem with the needle sticking at times? I removed front cover & it will still do it. A light tap on rig will release it. This is a long shot, Reed, but maybe it's sticking because
Hi Mark, I just checked my 525 (analog), and the receive noise level is the same in either position. 73, ed - k9ew On 4/15/07, C. Mark Cring <n8coo@yahoo.com> wrote: Question for someone out there wi
Look in the instructions for the PTO Assembly. Step #2 describes how to disengage an idler gear that connects the PTO shaft to the frequency dial. 73, ed - k9ew Suggestions or anyone with this proble
I removed and rebuilt the PTO in my Argosy, and the hardest part was figuring out how to remove the PTO. So I documented the process (with photos) for myself, and anyone else who might need it. It's
Triton IV, Argonaut 515, Argonaut 509. Do a Google search for "Triton IV modifications", "Argonaut 515 modifications", and "Argonaut 509 modifications". Also, "TenTec modifications" should give you p
..... does anyone know the typical velocity factor of commercial 75 Ohm twin feeder? Hi Steve, I don't think I've ever heard of 75 ohm twinlead. I looked up 450 ohm twinlead on www.thewireman.com, an
Thanks for the information, Jerry. If something like that occurs in the future, I'll be prepared. These lists are a great source of that kind of information, and I appreciate that you shared your fin