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)

If anyone can help me get the supplier and part number for "hobby time" I
couild use a bunch if it ;-)

Best regards Harry