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These are just a couple of short videos that I made for my nephew before sending him this receiver. As you can hear, deafness is not a problem with this design! I did make some frequency stability improvements after this video was made -- I think you can hear a bit of drift. Still, not bad for a very simple circuit using a polyvaricon superglued to the back of a cardboard box.
I'll post more videos of the second version of this receiver. There are further improvements in frequency stability. My goal: "Juliano Si5351" levels of stable-ness.
Hi Bill, I've been through my components draw and I think i have enough bits :-) your schematic has a few bits I can't fathom .. volume and the electrolytics :-) do you have one with these labeled?? many thanks, an excited Gaz :-))
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136kHz and 472kHz RX with the E-field probe.
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In the coming LF and MF DX season, I hope to be on RX with an E-field probe
antenna. As this has to go in a tree quite high, this depends on getting
some h...
ZS9V and KPA-500
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Several hours before our sunset, ZS9V was workable (had I not been on QRP)
If there was no one else calling them and if it weren’t so noisy, perhaps I
coul...
Weak Signal Volume Levels
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*The following blogspot was originally published in July, 2016. Hopefully
some will find this of interest as the topic is still very relevant.*
********...
Dabbling in tool restoration…
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I’ve been watching too many YouTube views lately about tool restoration,
and as part of my ongoing efforts to equip my home workshop with more tools
it mea...
A Homebrew Stereo for the Shack
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There are times when it's nice to listen to a little music while working at
the bench. For years, I've used a number of different vintage radios for
thi...
Cutting the Cord
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A few days ago my wife noticed that our local CBS station was missing from
Direct TV. It seems that Nexstar, the troll that owns distribution rights
to CBS...
Another new toy Update 8/8/19
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After FDIM and spending some time visiting my daughter, I came back and
thought about some of the on-going projects. At FDIM I had a chance to
spend some ...
A New Look for your uBitx!
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Adding a "Cool Blue" Display to your uBitx!
The standard "green background" with black lettering frequently reminds me
that I suffer from Chronic seasicknes...
Posts
Gold stuff Bill. Thanks for sharing the details.
ReplyDeleteThis will be my first scratch build. I have studying the schematic and hope to noodle the layout this weekend.
My first component order should be here soon. I am excited and scared. But you can't learn to be good without making an effort and stumbling as ya go.
73 from the Mitten State
KE5ETX
Sounds fantastic, Bill. Looks like another project for my 'to do' list!
ReplyDeleteHi Bill, I've been through my components draw and I think i have enough bits :-) your schematic has a few bits I can't fathom .. volume and the electrolytics :-) do you have one with these labeled?? many thanks, an excited Gaz :-))
ReplyDelete