[Boatanchors] Amp Supply LK500-ZC Amplifier Question

[WA5CAB--- via Boatanchors]

The average value of any waveform with any non-zero frequency component 
above about 20 cps is also that value indicated by a non-electronic multimeter 
set to DC.  I don't even recall what subject started this but what I took 
mild exception to in passing was the juxtaposition of the  terms "peak" and 
"DC" when simply "peak" would have sufficed.  I really didn't intend to chew 
up everyone's afternoon with my comment.  However, although I've no idea of 
how they are teaching such things today, most basic electronics texts of the 
last century tended to use the terms "average value" and "DC value" 
interchangably.  Which is an adequate explanation.

In a message dated 08/03/2015 13:12:44 PM Central Daylight Time, 
rbethman at comcast.net writes: 
> Sorry, but one would have to explain the "terminology" that makes DC 
> "average".
> 
> Either it is present or it is not.
> 
> You can have half rectified, where the end result is perhaps an average.
> 
> Capacitors are used to highly dampen that aspect.  If you get it from a 
> linear power supply, it is pure DC, or the power supply is all fouled 
> up.  A battery gives the voltage as a constant value that eventually 
> decreases with the chemical electrolyte deterioration.
> 
> Kindly please elucidate.
> 
> Regards, Bob - N0DGN
> 
> On 8/3/2015 1:59 PM, Jim Wiley wrote:
> >
> >Any of the rest of the Boatanchors gang want to chime in on this one?
> >
> >
> >- Jim, KL7CC
> >
> >
> >
> >On 8/3/2015 8:22 AM, WA5CAB--- via Boatanchors wrote:
> >>Sorry again, but again no.  It's only a matter of terminolgy but the DC
> >>value is the average, period.
> >>
> >>Robert Downs - Houston
> >>wa5cab dot com (Web Store)
> >>MVPA 9480
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480