[ARC5] Receiver Voltages.

David Stinson arc5 at ix.netcom.com
Thu Apr 30 11:20:49 EDT 2015


----- Original Message ----- 
From: "Dennis Monticelli" <dennis.monticelli at gmail.com>

Subject: Re: [ARC5] Receiver Voltages.

>  I respect the original designers, but this is still somewhat 
> of a mystery
> to me.  I'm sure they had a good reason.

I have a theory about this.  I arrived at it while doing
research on Low-B+ with the Command Sets.

I discovered that the communications receivers and the
transmitters and the modulators will all work and provide
a properly-modulated signal out with nothing but 24 VDC
on all the A and B busses.  It's "headphone" audio and
sub-Watt levels, to be sure, but they do work.
That cannot be said for any other transmitter or
modulator I've investigated.

I can't prove it, but I don't believe this is some
sort of "happy accident."  The engineers at A.R.C.
were brilliant men.   I think they intended for the thing
to work at some level when the dynamotors were either
damaged or there wasn't enough battery left to run them.

Like I said; I can't prove it, but I don't believe the
"happy accident" deal.

73 DE Dave AB5S



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