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Old September 12th 10, 06:41 PM posted to rec.radio.shortwave
Reinhard Zwirner Reinhard Zwirner is offline
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First recorded activity by RadioBanter: Aug 2006
Posts: 8
Default Sony ICF-2010 with a 5 volt USB adaptor

RHF schrieb:

On Sep 12, 9:34 am, John Smith wrote:


[...]
Yes, if you want to drop the voltage further, just drop more silicon
diodes in series ...

Regards,
JS


HUMmmm the Cost of one Resistor
or the Cost of many Diodes . . .


The voltage drop across a diode/diodes is more or less current
independend while the voltage drop across a resistor depends on the
current through that resistor. High volume - big current - big
voltage drop - low supply voltage; low volume - low current -
small voltage drop - high (maybe too high) supply voltage.

HTH

Reinhard