[simpits-tech] RE: CP Clock

[jay-anna]

The workings of the clock itself are mechanical only (i.e. you wind it
to make it go).  The electricity is simply for back lighting purposes.

Crease-guard

"Show me a man who cannot be bothered to do the little things, and I
will show you a man who cannot be trusted to do the big ones."
--Lawrence Bell, Founder Bell Hellicopter

-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Ben Jones
Sent: Thursday, October 24, 2002 6:40 AM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] RE: CP Clock

Yes it is possible but , not practical,

best thing to do is to buy a small transformer that outputs 5v ac and
use this as your primary source for your clock, it can be interlocked on
the primary side of the transformer  through a relay to any "Master"
switch or a "Avionics master " switch, to stop any power usage and heat
being generated when the pit is not running.

in theory 

but if it is a aircraft clock and out of a fighter then you proberly
need to findout wht the ac bus is running frequency wise , if the clock
is mechanincal design but run by a set pace electric motor through a
gear box and runs on the wrong hz then you could get the clock to speed
up in time or run dead slow ,maybee not even at all,
typically in australia we use 50hz ac , in the u.s i think in most areas
use 60 hz , this is what you would expect to gain out of a transformer
plugged into a house socket, but some time aircraft run in the 300-700
hz range for avionics.... im not exactly sure but it is some thing to
look into 

i could be wrong im not a EE , just a electrican

some one should have tackled this problem by now in the simmers
community, please thro some light someone
  
regards

BEN   JONES 
-----------------------------------------
bjones@pipecomp.com.au
------------------------------------------------


-----Original Message-----
From: jay-anna [mailto:jay-anna@mindspring.com]

 To any EE out there, can an
item wired for AC work on a DC current?  I didn't think that was
possible.

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