[ARC5] Fw: Receiver current drain

[WA5CAB at cs.com]

The original output transformer is perfectly suitable for a number of 
different military loudspeakers.  Which ones depends upon which radio set family 
the receiver comes from.

In a message dated 1/6/2011 9:14:08 PM Central Standard Time, 
neilb at ihug.co.nz writes: 
> >I'm not so sure lowering the cathode resistor is such a good idea.
> >
> >The suggested change will roughly double the 12A6 plate current, and 
> hence
> >increase the dissipation in the output transformer primary by 4X.
> >
> >It also might saturate the transformer with excessive DC, since the radio
> >has a single ended output stage.
> >
> >Best,
> >
> >-John
> 
> 
> Good points, except that the original output transformer is totally
> unsuitable for loudspeaker operation and virtually all modified
> sets have had a normal 5K - 4 ohm transformer fitted anyway,
> which are rated for the conditions you mention.
> 
> 73 de Neil ZL1ANM
> 

Robert & Susan Downs - Houston
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