I
Ivan Vegvary
Guest
Subject says it all.
Thanks,
Ivan Vegvary
Thanks,
Ivan Vegvary
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Michael Black
Guest
On Mon, 11 Feb 2013, Ivan Vegvary wrote:
If you're going to toss it out anyway, or find one lying on the sidewalk,
you might as well take it apart. You're likely to get some parts, just
like from any electronic device, and yes, depending on how they are
designed, there may be something nifty in there related to converting
weight to voltage. Open it up and see. If it does convert weight to
voltage (I suppose there are other ways), it might mean a digital meter of
some sort. It really depends on what's in there.
Keep in mind that sometimes it's best not to strip down the parts. In
some devices, the parts will be very dedicated, and so that IC or this IC
may not have much use except as originally used in the device. Once that
happens, the parts around it wll be the parts you need to use the IC
later, so you might as well keep it intact. For that matter, if the IC is
obscure, the peripheral parts may show you how to hook it up.
So if you keep it intact rather than as a source of small parts and maybe
that exotic IC, once you find a use for it, you can either use the whole
board intact (or cut out the pertinent part of the board) or at the very
least trace out the circuit, remove the parts and then build it up again
on a smaller circuit board.
That goes for everything. If there's a switching supply, keep it intact
(sometimes noting where it came from helps to provide information about
the output voltages and currents), because it may be most useful as a
switching supply. There may be a time when the parts become more valuable
than the full supply, but until that day, keep such things intact and get
the ceramic capacitors and generic small signal transistors off something
else, like a tv set or VCR.
Michael
Subject says it all.
Thanks,
Ivan Vegvary
Why ask?
If you're going to toss it out anyway, or find one lying on the sidewalk,
you might as well take it apart. You're likely to get some parts, just
like from any electronic device, and yes, depending on how they are
designed, there may be something nifty in there related to converting
weight to voltage. Open it up and see. If it does convert weight to
voltage (I suppose there are other ways), it might mean a digital meter of
some sort. It really depends on what's in there.
Keep in mind that sometimes it's best not to strip down the parts. In
some devices, the parts will be very dedicated, and so that IC or this IC
may not have much use except as originally used in the device. Once that
happens, the parts around it wll be the parts you need to use the IC
later, so you might as well keep it intact. For that matter, if the IC is
obscure, the peripheral parts may show you how to hook it up.
So if you keep it intact rather than as a source of small parts and maybe
that exotic IC, once you find a use for it, you can either use the whole
board intact (or cut out the pertinent part of the board) or at the very
least trace out the circuit, remove the parts and then build it up again
on a smaller circuit board.
That goes for everything. If there's a switching supply, keep it intact
(sometimes noting where it came from helps to provide information about
the output voltages and currents), because it may be most useful as a
switching supply. There may be a time when the parts become more valuable
than the full supply, but until that day, keep such things intact and get
the ceramic capacitors and generic small signal transistors off something
else, like a tv set or VCR.
Michael
I
Ivan Vegvary
Guest
On Monday, February 11, 2013 8:54:42 PM UTC-8, Michael Black wrote:
Ivan Vegvary
Thanks Michael !!On Mon, 11 Feb 2013, Ivan Vegvary wrote:
Subject says it all.
Thanks,
Ivan Vegvary
Why ask?
If you're going to toss it out anyway, or find one lying on the sidewalk,
you might as well take it apart. You're likely to get some parts, just
like from any electronic device, and yes, depending on how they are
designed, there may be something nifty in there related to converting
weight to voltage. Open it up and see. If it does convert weight to
voltage (I suppose there are other ways), it might mean a digital meter of
some sort. It really depends on what's in there.
Keep in mind that sometimes it's best not to strip down the parts. In
some devices, the parts will be very dedicated, and so that IC or this IC
may not have much use except as originally used in the device. Once that
happens, the parts around it wll be the parts you need to use the IC
later, so you might as well keep it intact. For that matter, if the IC is
obscure, the peripheral parts may show you how to hook it up.
So if you keep it intact rather than as a source of small parts and maybe
that exotic IC, once you find a use for it, you can either use the whole
board intact (or cut out the pertinent part of the board) or at the very
least trace out the circuit, remove the parts and then build it up again
on a smaller circuit board.
That goes for everything. If there's a switching supply, keep it intact
(sometimes noting where it came from helps to provide information about
the output voltages and currents), because it may be most useful as a
switching supply. There may be a time when the parts become more valuable
than the full supply, but until that day, keep such things intact and get
the ceramic capacitors and generic small signal transistors off something
else, like a tv set or VCR.
Michael
Ivan Vegvary
I
Ian Field
Guest
"Michael Black" <et472@ncf.ca> wrote in message
news:alpine.LNX.2.02.1302112346130.10279@darkstar.example.org...
piezo-sounder, a watch crystal and a few low spec transistors.
It also had a pressure transducer at each corner - apparently the one used
to trigger the chip out of sleep mode had become insensitive.
TBH the most useful bit was the PP3 battery connector.
news:alpine.LNX.2.02.1302112346130.10279@darkstar.example.org...
The one I robbed had a plain glass LCD, a SMD LM324, a "black blob" chip, aOn Mon, 11 Feb 2013, Ivan Vegvary wrote:
Subject says it all.
Thanks,
Ivan Vegvary
Why ask?
If you're going to toss it out anyway, or find one lying on the sidewalk,
you might as well take it apart. You're likely to get some parts, just
like from any electronic device, and yes, depending on how they are
designed, there may be something nifty in there related to converting
weight to voltage. Open it up and see. If it does convert weight to
voltage (I suppose there are other ways), it might mean a digital meter of
some sort. It really depends on what's in there.
Keep in mind that sometimes it's best not to strip down the parts. In
some devices, the parts will be very dedicated, and so that IC or this IC
may not have much use except as originally used in the device. Once that
happens, the parts around it wll be the parts you need to use the IC
later, so you might as well keep it intact. For that matter, if the IC is
obscure, the peripheral parts may show you how to hook it up.
So if you keep it intact rather than as a source of small parts and maybe
that exotic IC, once you find a use for it, you can either use the whole
board intact (or cut out the pertinent part of the board) or at the very
least trace out the circuit, remove the parts and then build it up again
on a smaller circuit board.
That goes for everything. If there's a switching supply, keep it intact
(sometimes noting where it came from helps to provide information about
the output voltages and currents), because it may be most useful as a
switching supply. There may be a time when the parts become more valuable
than the full supply, but until that day, keep such things intact and get
the ceramic capacitors and generic small signal transistors off something
else, like a tv set or VCR.
piezo-sounder, a watch crystal and a few low spec transistors.
It also had a pressure transducer at each corner - apparently the one used
to trigger the chip out of sleep mode had become insensitive.
TBH the most useful bit was the PP3 battery connector.
T
Tim Wescott
Guest
On Mon, 11 Feb 2013 20:29:56 -0800, Ivan Vegvary wrote:
you'll either say "no, no, that's not what I meant!" or "hang on a
second, I'm going out to have some fun!"
--
My liberal friends think I'm a conservative kook.
My conservative friends think I'm a liberal kook.
Why am I not happy that they have found common ground?
Tim Wescott, Communications, Control, Circuits & Software
http://www.wescottdesign.com
No it doesn't. For instance, if I say "use the case halves for frisbees"Subject says it all.
you'll either say "no, no, that's not what I meant!" or "hang on a
second, I'm going out to have some fun!"
--
My liberal friends think I'm a conservative kook.
My conservative friends think I'm a liberal kook.
Why am I not happy that they have found common ground?
Tim Wescott, Communications, Control, Circuits & Software
http://www.wescottdesign.com
I
Ian Field
Guest
"Tim Wescott" <tim@seemywebsite.com> wrote in message
news:2r2dneBU06CAP4fMnZ2dnUVZ_rednZ2d@giganews.com...
feet/pressure transducers bonded on the corners, the LCD/PCB assy is a
module similarly bonded on one edge.
Usually they contain a "zebra strip" to connect the LCD - another item
that's often handy to have a spare in the parts drawer.
news:2r2dneBU06CAP4fMnZ2dnUVZ_rednZ2d@giganews.com...
Many modern one's are a thick plate of toughened glass with theOn Mon, 11 Feb 2013 20:29:56 -0800, Ivan Vegvary wrote:
Subject says it all.
No it doesn't. For instance, if I say "use the case halves for frisbees"
feet/pressure transducers bonded on the corners, the LCD/PCB assy is a
module similarly bonded on one edge.
Usually they contain a "zebra strip" to connect the LCD - another item
that's often handy to have a spare in the parts drawer.
I
Ivan Vegvary
Guest
On Monday, February 11, 2013 8:29:56 PM UTC-8, Ivan Vegvary wrote:
Ivan Vegvary
Thanks everyone. Been saving three old scales. Two are dead and one is intermittent. Gather the LCDs and battery connectors are worthwhile, for sure.Subject says it all.
Thanks,
Ivan Vegvary
Ivan Vegvary