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94 January 2006
I have six six-volt batteries wired in
series to achieve 36 volts. I have
tapped the neg to the pos across two
batteries and got 12 volts.
Can I wire all three (sets of two)
and get 12 volts with lots of amps
and run a large inverter? That would
be running series and parallel in one
operation. I would have to be using
both sources at the same time.
Maybe switches would work?
I had my hip replaced last week and
am working on projects to complete
#1061 ■Greg Nenni, via Internet
custom chips in them, then I guess
my idea is dead, but if one of them
has something like a generic PIC in it,
then maybe I could get something
going. What can you tell me about
#1063 ■Mark Mickelsen, via Internet
[#11052 - November 2005]
I have a Proview Technology
color-monitor model 986 N. To repair
it, I need two ICs — TDA 9536 video
amplifier and TDA 9210 video
pre-amp. Does anyone know where I
could get these chips at a reasonable
I have searched the world over
for the Data Sheet on the TI's
TMS9916NL chip. Any help would be
#1062 ■Brent Lamb, via Internet
I just got a digital caliper for the
first time and I love it, mostly. I would
like it to display measurements in a
third way besides inches and millimeters. I would like to know if there are
any digital calipers out there that have
generic microcontrollers in them that
could possibly be reprogrammed or
replaced with one with my own
programming in it. If they all have
After an extensive search on the
Internet I was able to locate the ICs
that Mr. Eddy needs. If he goes to the
tomer/ home.php?cat=253&page= 11
he can order the two TDA ICs he
needs; TDA9210 and TDA9536 both
cost $4.50 plus shipping and
handling. Any questions he has he
can e-mail the company directly.
The data sheets on the TDA9210
and TDA9356 can be found at the
■Ralph J. Kurtz, Old Forge, PA