The small Electret microphones available in surplus market can be adapted to fit into most boom headset microphones. Check Electronic Goldmine, and others. Stuart K5KVH
Just went to a presentation by Flex Radio last night at a DX club meeting in Austin. Flex has a broader line now, and direct sampling, with multi receiver rig available. Now you can do SO2R with ONE
If you can get at both legs of the crystals and unsolder one, you could sue micro clips to probe each crystal in turn to see if it works. Of course you need a VFO signal source and then put the test
Bob, I would wonder if you are having capacitor coupled speaker problem. If a DC current surge hits the speaker coil, the surge might cause the coil of the cone to react so extremely as to temporaril
The crackly audio sounds like a faulty capacitor in series coupling to or from a stage, or a bad solder joint. Reflow or at least magnify each joint in the audio stages, if some look suspect. Bad cou
I knew a DX'er that built the PFR 3 kit and had a lot of fun with it working DX CW. His antennas may have been better than average, but the kit is a serious radio for its size. Stuart Rohre K5KVH
Ohhh! he may not have been talking about a Ten Tec radio. But, many of the big 3 Japanese radios do handle band expansion by cutting one end of certain diodes. As usual, YMMV. Stuart Rohre K5KVH
See if the remaining Radio Shack stores near you have the clamp on ferrite cores, thru which you pass the USB cable. Slide the choke along the cable to find the optimum attenuation point, then fasten
Thanks Jim, I should have added the part about trying multiple turns of cable around the ferrite. Granted that Radio Shack's parts supply is meager at best, is there someone who has taken on the supp
Try unplugging the cables to the sub receiver, check for bent pins, and if there is any discoloration on the pins/ sockets, spray some deOxit on them. Then plug the cable back in. Be sure if a double
Jock, I also have a Scout. The plug in band modules contain both an active circuit and separately, the LC circuit for the final filtering for each band. The most common failures are the modules begin
Jock, if my first steps to fix or service the contacts for the band module signals that go to and from the radio don't make the module work, then you should see if the transistors in the module are w
Joe, on lack of range on your tuner: Try adding 10 feet of coax or ladder line to your transmission line length. That will move the impedance bump to a different location, and perhaps allow your pres
You are doing the right things, to unplug and replug or clean the pins. Now, you need to unplug each multi-pin cable one at a time and slide each back into its socket. That may catch some oxidation o
Some radio handbooks have carried an all band Z match "tuner" for home builders, that has two LC circuits and two links to do multi-band out of one box. Z match tuners used to be commercially availab