Hi,
Interesting investigation, thanks for sharing. Another option I have used was
+12V +5V with the -12V rail powered by a 9V output isolated DC-DC converter
from an old thin ethernet network card. These come in either 5V or 12V input
and are effecitvely free (you also get 10MHz isolaton
A popular solution down under is to use a 555 timer driving a charge pump to
generate negative rails from a single positive supply.
Example here: http://www.vk2hmc.net/blog/?p=970
Hi all - I'm back :)
--marki
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From: time-nuts-boun...@febo.com
