Remember the 9.6v regulator runs all the audio circuits in the Micor. If you are going to be doing ANYTHING that might, if a circuit failure occurs, reflect any noise back into the supply voltage it's best to run it off the 12v unregulated source.
The average 5v regulator, properly heat sunk, does not care if it's fed by 9.6 or 12v or even 14v, so it's just as easy to grab 12v as 9.6v Don't forget the bypass caps on each side of the regulator chip, and physically close to the package. Mike WA6ILQ At 03:01 PM 4/14/05, you wrote: >verry verry very little current .. just to drive a input on a chip > >never though about the diodes .. ummmm good ideas .. I guess I >could use the 5 volt reg it should not have to hard a time going from >9 to 5 volts .. > >Thanks for the idea .. > >Rick > >On 14 Apr 2005 at 17:43, Thomas Oliver wrote: > > > > > How about a couple of resistors and make a voltage divider. Two equal > > value resistors will put you close. Don't know how much current you > > need so resistors might not work. Or you could use a 5 volt regulator > > and put a diode in series with the 5 volt output to drop it to 4.4 or > > u could just hook a bunch of diodes in series until you get close. > > > > tom n8ies > > > > > > > [Original Message] > > > From: Captainlance <[EMAIL PROTECTED]> > > > To: <[email protected]> > > > Date: 4/14/2005 4:38:21 PM > > > Subject: Re: [Repeater-Builder] 4.5v off Micor back plane > > > > > > > > > No, micors develop 9.6 and 12 volts only. > > > > > > ----- Original Message ----- > > > From: "Rick & Charlotte" <[EMAIL PROTECTED]> > > > To: <[email protected]>; <[EMAIL PROTECTED]>; > > > <[EMAIL PROTECTED]> Sent: Thursday, April 14, 2005 3:06 PM > > > Subject: [Repeater-Builder] 4.5v off Micor back plane > > > > > > > > > > > > > > is there a spot that I could grab 4.5v off the micor back plane .. > > > > > > > > > > > > I need to drive a bias boad with 4.5v and wonder if there is a > > > > SAFE spot to grab this ? > > > > > > > > I know I could build a reg for ti but I would rather keep this > > > > simple > > > > > > > > Thanks for any and all help in this matter > > > > > > > > Rick > > > > > > > > > > > > ======================== > > > > > > > > Rick Szajkowski VA3 RZS > > > > Charlotte Darby VA3 CMR > > > > Node Owners of IRLP Node 2120 > > > > 147.300 + VA3 OME > > > > 224.420 - VA3 OME > > > > Part of The Omeme Amateur Radio Club > > > > Peterborough Ont. Canada 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/
