PrinceGaz wrote:
> A few days ago I thought up a possible reason modern MD kit does
> not support an optical digi-out. The latest units
> operate on 1.5V yeah?
> An LED does, or at least did need a forward voltage of about 2V to
> pass any current so they would need a voltage-multiplier
> circuit, a
> not particulary efficient thing to up the voltage
Sorry, Gaz, I don't buy this. As far as I have seen, most portables still
use at least 3V batteries, and I expect they use ~3V logic parts, but I
wouldn't be suprised if they used a boost regulator to smooth out the
voltage droop as the battery discharges. When they have an external single
cell pack, this will be voltage multiplied. I think many portables DO have
LEDs, certainly, my MZR90 has one to indicate recording.
Incidentally, when I was looking inside an MZR30 the other day, I noticed
the mic/optical input jack socket was clearly labelled "Sharp".
simon
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