[R-390] R390A Audio Meter FS

rbethman rbethman at comcast.net
Wed Sep 22 09:22:15 EDT 2010


  Well, I "screwed the Pooch" in regard to the meters.

Being human is a B&%*#@ !

Bob - N0DGN

On 9/21/2010 7:16 PM, Stephen M. Murphy wrote:
> In my Motorola, the meters are definitely not the same: Line is set up
> for measuring AC and Carrier for DC. The Carrier meter cannot be used in
> the line position; it'll just bounce about the left peg.  No question...
> done it before.
>
> I suspect that the line meter would show at least some deflection if
> wired into the carrier circuit with the correct polarity.  This is an
> educated guess, haven't tried it myself.
>
> If I recall, the specs are different for the two meters; about 3500 Ohms
> for the Line and 17.5 for the Carrier.
>
> Dunno if they varied over the years, but that's how mine is...
>
> 73
>
> Steve N8NM



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