Millihenery & Microhenery is the terms used depending on the application of a particular circuit.
What I have not seen for a long time is the old J.W. Miller coil winding device. maybe at a Antique radio swap maybe. Mark Holman AB8RU *** IT Student ***** Happy Holidays ----- Original Message ----- From: "Wade Lake" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, December 23, 2004 7:47 PM Subject: Fw: [Repeater-Builder] Did measurement of inductors change??? > > > > Sorry, > > their search engine does not allow that without a previous browser > session. Just go to http://www.digikey.com and enter "2.2mH choke" in the > search window. Select "fixed(7 items)". > there are a few to pick from. > > Wade - KR7K > >> ----- Original Message ----- >> From: "Wade Lake" <[EMAIL PROTECTED]> >> To: <[email protected]> >> Sent: Thursday, December 23, 2004 5:38 PM >> Subject: Re: [Repeater-Builder] Did measurement of inductors change??? >> >> >> > John, >> > >> > I did a quick search and found those at Digikey, follow this link. >> > http://www.digikey.com/scripts/DkSearch/dksus.dll?Filter >> > >> > Wade - KR7K >> > >> > ----- Original Message ----- >> > From: "JOHN MACKEY" <[EMAIL PROTECTED]> >> > To: <[email protected]> >> > Sent: Thursday, December 23, 2004 10:07 AM >> > Subject: Re: [Repeater-Builder] Did measurement of inductors change??? >> > >> > >> > >> > Yea, the difference between uH (Micro-henries) & mH (mil-henries) is > what >> > I've >> > always understood since my earliest training. But the fact that I have >> been >> > unable to fine mH chokes & only found uH chokes made me wonder if the >> > measurement system of inductors had changed!! (sort of like when >> capacitor >> > measurements changed from uuF to pF) >> > >> > I was doing this search late last night. Today, a little more fresh, > I'll >> > go >> > back to work & look at the Newark & Allied catalogs again! Perhaps >> > I'll >> see >> > something I missed. >> > >> > ------ Original Message ------ >> > Received: Wed, 22 Dec 2004 09:35:50 PM CST >> > From: Joe Montierth <[EMAIL PROTECTED]> >> > > >> > > --- JOHN MACKEY <[EMAIL PROTECTED]> wrote: >> > > > I need to build a filter and it requires I have a >> > > > few chokes of 2.2 mH value. >> > > > So I look in the Newark & Allied catalogs and all >> > > > the chokes I am seeing are >> > > > labeled "�H" (a "u" with a tail on the left) >> > > > rather than "mH" >> > > > >> > > > Was I asleep for a long period of time & they >> > > > changed how inductors/chokes are >> > > > labeled or am I missing something else? >> > > >> > > The m is for milli, the u (with the tail) is for >> > > micro. They are both valid, RF frequencies usually use >> > > "microhenries"(u) and audio range will use >> > > "millihenries" (m). If you order the wrong one you'll >> > > only be off by a factor of 1000! >> > >> > >> > >> > >> > >> > >> > >> > Yahoo! Groups Links >> > >> > >> > >> > >> > >> > >> > >> > >> > > > > > > > Yahoo! Groups Links > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
