The HW-7 was the first of the three QRP transceivers that Heathkit produced. It was poorly engineered and I would not recommend its design for copying. The HW-9 was the third such transceiver and it

Those PVC CW Resonant speakers work very well. I've built and tuned several (one for each rig) AND I am in the process of building another switch-box so as to allow me to route any rigs output to a

Sean and the "reflector police", Maybe I can interject a few thoughts here, at the risk that I, myself might be flamed which should not take place on this list or in this group.

This the second time on this list that I have been accused of something nefarious. I should keep my mouth closed and my ideas to myself. -= Sean Edwards =- AD0QG

Lets build one! A hunk of pvc pipe works very well, and is plenty stiff enough. I built one some years back, and if I could find it, I'd use it. The volume of the

I do realize this information is protected property. I do not want to rip off the design, just use it as a reference. The HW-7 used 40, 20 and 15 meters and what I am suggesting is a kit for 30, 17

That's awesome! I love those kinds of solutions. Unfortunately the money people sweep them under the rug. Thanks for sharing. - Dan, W2DLC

Just a bit of caveat: the rights to many of the Heathkit's are still in force and, while I certainly imagine you can follow the general outlines of the HW-7 et al, you certainly don't want to get too

I had forgotten about this. I made one years ago when I first started in radio, and used it with my FT-101EE. As i recall, it worked quite well and the video bears this out. I have a boatload of

Keeping in the minimalist fashion, my old friend the Red Solo Cup Resonance CW filter does a great job at nearly no expense. The design has been around for a long time. The URL is to a U-Tube

Interesting. I found a HW-7 manual, with a parts list, schematic, and PCB lay out: < http://www.vintage-radio.info/heathkit > -= Sean Edwards =- AD0QG

Hi Curt What brand is ur vertical antenna de Bob KR9Z Sent from my iPhone

Hi Curt What brand is Sent from my iPhone

Interesting data. One should recall that the Cyclone has a similar PA/shared with receive mixer architecture, so the Cyclone would provide some hints on higher output power. Several factors may

Jim, I think you mean 0.02 Watts, not 0.2 Watts. 20mW makes the effort worth even less. However, if someone is having to do surgery on an ill

Since I happen to have a sizable handful of both 2N7000 and BS170 transistors which are very close to each other in spec, I decided to swap out the 2N7000 in Q2 (PA transistor) to see what change (if

Dear amigos: Tens of thousands, maybe much more radio amateurs and would be hams around the world will certainly enjoy operating on the 40 meters band during the tail end of solar cycle 24 and the

Thanks for clearing that up...all those blank spots had me thinking I was missing something...kept returning to see if there were any updates...OK, time for me to take my OCD meds...72s SENT FROM MY

I’m in! Charles - NK8O

Yes, I caught two crickets tonight. I definitely was QRO - 5 watts compared to their 700 mW. The chirp was loud into east-central KS, despite the QRN. 72, Chas - NK8O