[R-390] R390A Audio Meter FS

[rbethman]

  Try Figure 105.  Both M101 AND M102 are shown with polarity markings 
alongside their "symbols".

Bob - N0DGN

On 9/21/2010 3:03 PM, ka9egw at britewerkz.com wrote:
> Take a look at the lower right corner of page 188 of TM-11-856A.  The line
> level meter isn't connected to *anything* but a handful of range resistors
> and their associated switch wafers, all on the secondary of T602--the line
> out transformer.  And there are no "+" or "-" by M101, which is indicated by
> a simple circle with "VU" inside it.
>
> Moreover, one side of M101 is connected directly to one side of T602's
> secondary.  There is no diode shown anywhere in that part of the circuit.
>
> Where in TM11-856A are you looking?  The schematic on page 188 shows no way
> [barring a short between windings of T602] for DC to get to M101.
>
> If somewhere else in the manual M101 is shown with polarity markings, then
> we do indeed have a puzzle.
>
> 73, Brian KA9EGW