Harry Lethall wrote:
Hi all,
I have had a bit of a busy half-year, with sickness in the family and the
like. But I have managed to add a few new projects that could be of interest
to my homepages on http://web.telia.com/~u85920178

Have you ever wondered how these old IF-cans can be re-used? I have two
different articles dedicated to them:
http://web.telia.com/~u85920178/begin/cans-0.htm (reusing IF cans)
http://web.telia.com/~u85920178/rx/tda7k-rx2.htm (TDA7000 for NBFM)
http://web.telia.com/~u85920178/bloc...mr_tube_00.htm (Making your
own)

Last month someone asked me how I choose values for components, but "Can you
add calculations". Ok, I did it, with a few over-simplifications, and for a
crude project:
http://web.telia.com/~u85920178/begin/bug_calc.htm (FM Wireless Microphone)
http://web.telia.com/~u85920178/begin/calc-00.htm (Includes loads of useful
calculators)

Earlier int he year I needed to throw together s quick VHF antenna for
446MHz, 432MHz, and again for 145MHz. When I had to do it for 105MHz I
created this project:
http://web.telia.com/~u85920178/antennas/vpole0.htm (15-minute +2.5dBd
antenna)

Where did those multi-gang tuning capacitors go? I needed one, so I etched
it on a PCB, cheap:
http://web.telia.com/~u85920178/use/tuning_caps.htm (multi-gang - for
HF/VHF)
http://web.telia.com/~u85920178/use/tuning_caps2.htm (PCB Preset capacitor)

Hejsan, "Lethall Harry!" :-)

Excellent new pages on your website. The two on homemade
tuning capacitors is very good. Keep it up, please, should be of
help to many hobbyists, not just licensed radio amateurs.