Re two batteries, was Miracle switch failures

[tkeithb at attbi.com]

> I currently just use one 5 cell NiCd with a RadioSouth 5.1v regulator and 
> it's the best setup I've had in terms of consistent performance.  I will 
> be repeating this on my next plane. 
> --Lance

So what you're saying Lance is that you DO have redundancy, a second plane.

:-)

Keith
> You are right, the backup battery is the simpler (hopefully more reliable) 
> setup.  I understand.
> 
> In my experience with circuit board design, I've found regulators to be 
> more reliable than diodes.  This is not intuitive, since regulators have 
> many internal transistors, but they also have bypass protective circuitry. 
>  If the regulator is wrapped in foam and the connectors are stress 
> relieved so that they can't weaken, then I'd have no problems having a 
> regulator in the circuit.  I
> 
> I currently just use one 5 cell NiCd with a RadioSouth 5.1v regulator and 
> it's the best setup I've had in terms of consistent performance.  I will 
> be repeating this on my next plane. 
> 
> --Lance
> 
> 
> 
> 
> 
> "Tomanek, Wojtek" <tomanekw at saic-abingdon.com>
> Sent by: discussion-request at nsrca.org
> 03/31/2003 09:25 AM
> Please respond to discussion
> 
>  
>         To:     "'discussion at nsrca.org'" <discussion at nsrca.org>
>         cc: 
>         Subject:        RE: Re two batteries, was Miracle switch failures
> 
> 
> It is also a point of failure, but not single, backup battery does not go 
> through it and you get constant voltage and if you like Li-Ion batteries 
> you really need it.  Diodes give isolation but nothing else.  If you have 
> access to high quality diodes go for it, I founded some but did not like 
> using them after a while.  I would not necessarily use stuff you find in 
> Radio Shack. 
>  
> It is just FYI and how I do things. 
> WKT 
>  
>  
>  
> -----Original Message-----
> From: s.vannostrand at kodak.com [mailto:s.vannostrand at kodak.com]
> Sent: Monday, March 31, 2003 10:13 AM
> To: discussion at nsrca.org
> Subject: Re: Re two batteries, was Miracle switch failures
>  
> 
> If a diode is a new point of failure, what's a regulator? 
> 
>  
> 
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