The protection diodes should have blown the fuses,shouldnt have damaged the radios unless too big a fuse was used. An old trick I have used where the unknowing kept hooking things up reversed,was to use a diode bridge inline- then the polarity wouldnt matter. Worked well if you could live with the 0.7v drop,and its idiot proof ! Of course,fuse both leads... 73,Lee,N3APP
----- Original Message ----- From: "bill Croghan" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, January 08, 2004 12:01 AM Subject: Re: [Repeater-Builder] Fuses on power cords > Hi budd, > Another thought, when I was in Tucson, My brother in law was helping me jump > start my Jeep one day, and before I could get my radios turned off, he attached > the jumpers backwards. A fuse in the negative lead, might have saved the three > radios he smoked that day! > Bill > WB0KSW > ----- Original Message ----- > From: "Budd" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Wednesday, January 07, 2004 7:18 AM > Subject: [Repeater-Builder] Fuses on power cords > > > > I'm caught in the middle of a couple of feuding technical "experts" > > on a probably trivial issue. > > Some Mobile radio power cords are fused on only the positive line. > > Others are fused on both lines. > > One's logic is you only need one fuse. The other maintains their > > communications shop lost all the radios with only one fuse to a > > shorted power supply and none of the dual fused radios were > > effected. The one fuse expert says that is BS and the other is lying. > > What is the collective experience/knowledge on here for this topic? > > Thanks in advance for your thoughts & 73 > > Budd > > > > > > > > > > > > > > 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/ > > > > > > > > > > > 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/ > > 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/
