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1. LF: RE: Sound Card Impedance (score: 1): Author: Rik Strobbe <[email protected]>; Date: Wed, 15 Dec 2010 21:41:01 +0100; Ken, a resistance in the range of some kilo-Ohm and some ten's kilo-Ohm in parallel with a capacitance in the range of some 100 pF to some nF. Large variations depending on the brand. 73, Rik ON7YD -; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-12/msg00015.html (11,241 bytes)
2. LF: Re: Sound Card Impedance (score: 1): Author: "Clemens Paul" <[email protected]>; Date: Wed, 15 Dec 2010 23:00:42 +0100; Ken, I have *measured* two soundcards so far. My notebook's (Medion) onboard soundcard has 4kOhm, a friend's delta 44 had 10kOhm. I guess you want to operate your soundcard as vlf receiver? 73 Clemen; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-12/msg00365.html (10,599 bytes)
3. LF: Re: Sound Card Impedance (score: 1): Author: "Alan Melia" <[email protected]>; Date: Wed, 15 Dec 2010 23:00:33 +0100; Hi Ken stick a steady signal into the card on one channel, (use one of the waterfalls) but put a small, say 20k, pot connected as a variable resistance in series with the source. Wind up the pot' til; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-12/msg00480.html (10,798 bytes)

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