[Koenig, Tom]

Wayne... what batteries are you using? I find it interesting that the
regulator should do this. I would expect it to cease working altogether,
should it fail. Its just a Micrel reg with a few resistors and capacitors. I
would however expect the voltage out  to go high should the voltage divider
fail.

I guess anything is possible. Maybe you could have someone with some
electronics knowledge ( in your neck of the woods) check it out for you.
I would also carefully look at the batteries. I had some of the old
Duralites, which failed  just under a few mA load, but appeared fine no
load...nearly cost me a model too.

My condolences for the loss of your model.

Tom

> ----------
> From: 	wgalligan[SMTP:wgalligan at cnbcom.net]
> Reply To: 	discussion at nsrca.org
> Sent: 	Tuesday, 25 March 2003 3:06
> To: 	<discussion at nsrca.org>
> 
> I had an unfourtunate mishap yesterday and lost my Prophecy.  Come to find
> my redundant or failsafe switch failed on me.  I was using a MCI Miracle
> swith that has a regulator on it and has mechanical fail safe if switch
> breaks down the system is on till the battery is unplugged. I found out
> when testing the battery to make sure I had juice.   Through the battery
> lead I had 6.5v and at the charge plug I had 6.5 but when tested through
> the receiver end of the switch I had only 4.2v.  Below the recivers
> voltage threshold.  Went into pcm lock up and throttled down and into a
> slow spiral death.  At least the throttle came down by pcm failsafe.  SO
> it appears the regulator side of this switch went bad.  SO Much for
> failsafe.  Has anyone heard of such failure on these types of switches?
> And is it really neccesary to voltage regulate a 6volt system.  I know
> when peak charged the pack is at 7 volts on an expanded meter.   I have
> recently gone to 1500mil 4 cell pack on my new plane to eliminate the
> regulator part.
> 
> Wayne
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