You might try the ARRL website, for supplemental files from that QST article. I believe they had those supplements, even then. Or, look at the original QST article, print or online. Perhaps it is ment

I remember an old trick reported in Popular Electronics in the earlier 1960s. The author would wrap some 14 gauge bare copper wire closely and tightly around the outside porcelain part of of the heati

Hi Lee, You certainly did a great job in constructing your clone of the Philmore Xmtr and power supply. You could probably make some good part time money offering for sale the following options for th

Hi Dale, I had the same problem you had with your Ozark Patrol. The regeneration on mine was very unstable, and almost as bad as you described with yours. Here is what I did, so far. Besides the subst

I found that a generic 2N2222 worked identically well to the Q1 transistor originally in this receiver. Try that, if you have one handy. On a slightly different related topic, has anyone ever tried su

Hi Herb, The fact that it squeals seems to indicate the audio section is at least working. Not quite sure why voltages around Q1 are not right, so for some reason the problem seems to gravitate there.

Hi Herb, Try melting and re-flowing the solder on each of the solder pads, one lead at a time for each component, then recheck your voltages. Before doing this to the torroid coil windings, measure th

Hi Curt, Sounds like you got it fixed, Great! I don't know if anything got salvaged from the Ozark Patrol group on Yahoo (I couldn't get anything there) so I am wondering if maybe a separate thread sh

I heard the same story about radiation from the regenerative Paraset receivers, and how they could be tracked down with direction finding radio receivers. So I fired up one of my experimental regenera

Thanks, Curt. Your audio files sound just like my receiver does on 80 and 75 meters, but only after the addition of the 10 ohm resistor to the one turn feedback coil going through the center of the to

Hi Curt, The most likely thing to do, I think, is to replace (change the value) of c11, a 560 pF capacitor, that is wired to the toggle switch, that is your band switch. I believe with the 560 pF capa

... hmmm, "not supplying their warehouses anymore"? If true, that's a bad sign for them, like going out of business, once and for all, end of enterprise. First, stores gone, then warehouses? ... Jerry

Curt, please keep us posted on your progress with the Ozark Patrol receiver when finished. I checked all resistors before using them here and all were ok. I have problems with regeneration being way t

Had a great experience helping my grandson build this kit. It works, but the regeneration is somewhat unstable, more so than I am used to experiencing. (I have built and experimented with several rege

The idea of "forgetting" about things reminds me of the old joke about "old timers disease." It goes like this. "There are three things that indicate you are growing old. The first is a loss of memory

#cal-reminder