Sent: Friday, February 11, 2005 4:33
Subject: electronics question for the
Sorry for Off topic..
After a few weeks of completely happy and crazy
use of my newly installed (and now working, thanks to LD people) Fernandes
Sustainer pickup, I have for the first time left the damn thing plugged in
overnight, (battery switch on jack socket arrangment) and drained the
battery. THIS WILL NOT DO! now I could add a power switch to the guitar (but
then I would no doubt forget that ..)
BUT... I have a cunning plan!!!
I also have a GK midi pickup installed on the
same guitar, and when I poke around with the multimeter at the socket that
is installed in the guitar that takes the midi to my synth I find a pin that
seems to have around 7 volts sitting there. The sustainer pickup taks a 9
volt battery (but when I test, again with multimeter) it also appears to be
around 7 volts.
Now it doesnt take an idiot to realise what I'm
suggesting. I would like to take the power from the GK midi pickup cable and
connect it to the sustainer. Which I would have tried already, but for one
If I check voltage on the battery with
multimeter connected with BLACK cable to ground and RED cable to battery.. 7
volts. When I do the same on this mysterious power wire inside the GK
connector, the multimeter trys to swing the wrong way, I reverse the multi
meter leads, and then I get this reading of 7 volts.
Does this mean that the GK pickup is infact
powered by -(minus) 7 volts? ( I've never really understood the concept of
negative volts Im afraid..) SO.. either I cant use this power, OR I must
reverse the polarity of it???
Is this possible?
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