Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Passive\s+high\-pass\s+filter\s+circuits\?\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Passive\s+high\-pass\s+filter\s+circuits\?\s*$/: 3 ]

Total 3 documents matching your query.

1. Re: LF: Re: Passive high-pass filter circuits? (score: 1): Author: [email protected]; Date: Thu, 03 May 2007 20:20:54 -0400; From your description, the source might be close to that over the range of interest, but can you be sure about the impedance seen by the telco "repeater coil" into the mic input? It will make quite; /rsgb_lf_group-archives/html/rsgb_lf_group/2007-05/msg00140.html (11,430 bytes)
2. Re: LF: Re: Passive high-pass filter circuits? (score: 1): Author: "J. B. Weazle McCreath" <[email protected]>; Date: Thu, 3 May 2007 21:22:05 +0100; Hi John, LFers, The source and load Z are both 600 ohms. I'm using a telephone "repeater coil" at the shack end of the line for isolation from local ground of the sound card's mic-in. The "antenna" i; /rsgb_lf_group-archives/html/rsgb_lf_group/2007-05/msg00141.html (10,522 bytes)
3. LF: Re: Passive high-pass filter circuits? (score: 1): Author: "Alan Melia" <[email protected]>; Date: Wed, 2 May 2007 01:01:33 +0100; Hi JB your spec might give filter designers the shivers !! There are a couple of other parameters that would help, though they might seem unimportant. How fast do you want it to roll-off below 1kHz .; /rsgb_lf_group-archives/html/rsgb_lf_group/2007-05/msg00142.html (12,169 bytes)

Current List: 1 - 3
Page: [1]