[ARC5] Fw: Receiver current drain

[J. Forster]

Yes, but in my view ripping out the original transformer is a poor idea.
I'd use an external line to VC transformer to step the Rx output down to
the speaker.

-John

===============


>> 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
>
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