UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Homebrew transmitter project (Frank vs. Oskar :) )

Oskar.B · 19th Nov 2005, 10:57 pm

Values for the output filter matches approximatetly what I calculated ... with this:

http://my.athenet.net/~multiplx/cgi-bin/pinet.main.cgi

I figured, why do it by hand, when someone has done a nice web-calculator.

I have read the theory though.

http://my.integritynet.com.au/purdic/lowpass.html

And in school we calculated values in smith-charts, beginning by plotting Q-curves in the smith chart that you must follow. Interesting

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19th Nov 2005, 10:57 pm	#21
Oskar.B Pentode Join Date: Oct 2005 Location: Gargnäs, north of Sweden Posts: 105	Re: Homebrew transmitter project (Frank vs. Oskar :) ) Values for the output filter matches approximatetly what I calculated ... with this: http://my.athenet.net/~multiplx/cgi-bin/pinet.main.cgi I figured, why do it by hand, when someone has done a nice web-calculator. I have read the theory though. http://my.integritynet.com.au/purdic/lowpass.html And in school we calculated values in smith-charts, beginning by plotting Q-curves in the smith chart that you must follow. Interesting . __________________ Old electronics smell better! http://gargnas.net Last edited by Oskar.B; 19th Nov 2005 at 11:09 pm.