For those that may be interested.
I have placed Version 0.90 of the K7QO 5W 20m Assembly Guide at
The document is 211 pages at this point and will change a little
over the next week, with your help.? It is written for my build of
the 5W 20m prototype using what Diz called PCB #2.? There were a
couple of small changes to the production board that don't effect
the build at all.? J1 was moved as Diz did not like it close to the
standoff hole and he added some heat sink mounting holes for the PA.
The document is a 'guide'.? It is not meant to replace the build
instructions that will appear on the 5W web page at kitsandparts.com
Please note.? I built this unit, which Diz gave the official S/N 001
as his is S/N 000, and I did it with my own board and with my own
parts except for two binocular cores that are new to the 1W and 5W
series and the set of crystals that Diz contributed to the project
and for which I am very thankful.
Photographs may contain parts that are different from the production
kit, so it is up to you to be able to identify parts by using
the official web page of Diz at kitsandparts.com in Tampa FL USA.
If you are going to build a 5W, and remember that I have all
the parts listed for the 20m only version, then you may want to
take a look at the above before you receive your kit to give
you some idea of one way to build it.? Because the document is
so large, I seriously doubt that anyone will or even want to
print the thing off.? It's going to be more expensive than the
kit.? IMHO.
Let me know if you find something in error or a better idea.
I built my transceiver using a previous version of the schematics
and I have to go back in and change the highlighting and add
some sections to be highlighted in the manual so as not to confuse
anyone, even myself.
Someone sent me an email or posted that they were looking forward
to the video(s).? Won't be one unless someone pays me to do it
by buying a kit for me to use in the process.? I can be bribed.
I think the manual above is better than a video.
Look for me on 20m in pursuit of WAS (22 states and counting) and
DXCC (1 country and counting) with the rig.? I'm running at 3W
until I get my heatsinks off the boat and I may not change even
that since the spots are coming back.? :-)? See the last chapter
in the manual on what I did for the heat sinks.? I think I'll be
around 14.054MHz as shown in the front view photograph.? Spots
on reversebeacon.org site.
My A/C died in the lab yesterday, so I'm off the bench until the
guy gets here in the morning.? Off to work on a Raspberry Pi 4
that's still in the box.
I am working on an enclosure manual and video and hope to get it
done ASAP.? See the last chapter on my resulting enclosure that
was built in a short period of time.? Like an hour without the
painting.
The digital display is a qrpguys display with a board layout that
I did to allow me to 'floor mount' it without having to use holes
in the front panel.? Used the Keystone 621 right angle 4-40 tapped
brackets found at Mouser and other vendors.
I'm looking forward to working a large number of you on 20m with
this rig and your 5W.
FYI
chuck, k7qo
