John Smith wrote:
...
Anyone else avoiding the high cost of micros and using a similar system
or have any data on homemade micros?
Regards,
JS
Forgot to mention, a readily available source for zinc it the can off a
plain carbon battery (don't use alkaline.) It is composed of zinc. You
simply need to dismantle the battery and remove the can which holds the
batteries materials. Cutting the battery in half, longways, then
scraping out the contents and scrubbing the can clean, before dissolving
in the acid ...
Regards,
JS