EMRFD Message Archive 2452
Message Date From Subject 2452 2008-11-27 10:00:41 Paul looking for old HR article on linear tuning Hi all,
I am looking for a copy of an old 'Ham Radio'-article: " Near linear
tuning with dual eccentric pulleys ", Ham Radio, January 1990, page 53,
The article describes a mechanical solution on how to transform a VFO
with capacity-linear varco into a pseudo frequency-linear one...
I would like to try this mechanical 'trick' with the combination of a
VFO that has a capacity-linear varco in it and a slide-rule type scale.
Can somebody provide a scan, pse?
Thanks, Paul - ON4BXZ
2454 2008-11-28 10:50:04 Ashhar Farhan Re: looking for old HR article on linear tuning paul,
i might have it. drop me an offline message to firstname.lastname@example.org
2455 2008-11-28 10:50:05 Bill Wright Re: looking for old HR article on linear tuning There is mention of this process in the EMRFD book. I am looking now but memory says it was something like a "poor mans spectrum analyzer". I think in the homebrew test equipment area. Hope this helps
2456 2008-11-28 11:43:16 Wim van Berkom Re: looking for old HR article on linear tuning Hello Paul,
Should be in your mail box by now (HR90_01.PDF)
We'll hear about your results.