Colin,

I see what you mean, but the problem here is that there are two
voltage sources, and I don't think you can hook the same regulator to
two different sources.  Besides, as you correctly point out, a
regulator won't address the problem of one source being lower than it
should be, which would cause the current load to be unequally
distributed between the two supplies.  Personally, I think they
should have just paralleled the two sets of leads and let the radio
be run off one 40-amp supply.  If I had that radio, I'd just buy a
40-amp supply and use a 20-amp one somewhere else in the shack.  You
can never have too many supplies, right?

Steve

On Tuesday 8/2/05 11:44 Colin McDonald wrote:
>wouldn't a chip bassed regulater insure that the voltage stays at a certain
>rate, given that the voltage is slightly higher then a certain amount.
>For instance, the radio could be set up to run on 12 volts and the regulator
>could regulate up to 13 or 13.2 given a 13.8 power supply...so that if the
>voltages varied somewhere between 12 and 13.8 it would automatically
>regulate it to 12 in the radio.
>This wouldn't work of course if the voltage was too low, but if the internal
>workings were set up to run on something lower then your average supply and
>then it was regulated from a higher voltage down to a lower, it would work.
>73
>Colin, V A6BKX
>----- Original Message -----
>From: "Steve Dresser" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Tuesday, August 02, 2005 8:46 AM
>Subject: Re: Ts 480 and power supply
>
>
> > Colin,
> >
> > A voltage regulator won't eliminate the difference between two
> > voltage sources.  It only prevents the voltage from exceeding a given
>value.
> >
> > Steve
> >
> > On Tuesday 8/2/05 03:21 Colin McDonald wrote:
> > >i am a little surprised there isn't some sort of voltage regulator inside
> > >the radio in the DC line to insure that that very thing doesn't happen.
> > >73
> > >Colin, V A6BKX
> > >----- Original Message -----
> > >From: "Butch Bussen" <[log in to unmask]>
> > >To: <[log in to unmask]>
> > >Sent: Monday, August 01, 2005 4:53 PM
> > >Subject: Re: Ts 480 and power supply
> > >
> > >
> > > > Speaking of the 480.  If the voltage between both pulgs isn't within a
> > > > very small ammount, the rig won't transmit.  Personally, I can't see
>the
> > > > 200 watt version, you're talking an increase of 3 db or a half an s
>unit.
> > > > I'd much rather have the tuner.
> > > > 73s
> > > > Butch Bussen
> > > > wa0vjr
> > > >
> >