QRP Popcorn Blog / videos gone ?
I did a search using Duck Duck Go for:
pn5179 ham radio circuit schematic
(I just happen to have a bunch of PN5179 transistors in the junkbox). And one of the links was:
https://www.edaboard.com/threads/pn5179-equivalent-transistor-needed-for-construction.259327/
where I saw this:
Ah, the little guy with the hammer ! That's from the QRP Popcorn blog. So I tried looking at the QRP Popcorn blog and got this:
Some of the QRP Popcorn pages are found almost completely intact on archive:
https://web.archive.org/web/20241226034145/http://qrp-popcorn.blogspot.com/2022/10/some-analog-ic-gilbert-cell-mixer-notes.html
But I noticed that on some other pages, pictures and diagrams are missing, bummer !
BTW I also tried a search for:
"Discrete BJT Transformerless Feedback Amp"
(the title on that PN5179 circuit) and nothing - I was interested in seeing his comments on the circuit.
Also, I didn't see any of his videos on Youtube either. I'm hoping it's just a blog name change or ? Otherwise it's another case of the internet getting worse day by day. :(
update at noon: NT7S has a pdf file of the old QRPpops content, a little less than 1000 pages ! Hopefully that PN5179 circuit is in there:
http://nt7s.com/files/QRPHomebuilder.pdf
2nd update: after a quick skim of those 945 pages I didn't see the PN5179 circuit :(
Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm