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Fine idea, get the datasheets from my webspace:Please send the datasheet and I will send it to JROK so he can put it on his
website.
http://www.jrok.com/datasheet/
Nano farad is a term that is not used as often as pico farad.Hello!
I am an electronics newbie, and I was wondering where I could find a
capacitor found at
http://www.mitedu.freeserve.co.uk/Circuits/Alarm/radiowavealm.htm . It says
I need a 4 nano farad capacitor. Could someone give me the URL of say a
mouser catalog item that's 4 nano farads?
Any help would be GREATLY appreciated!!!!!!!!!!
Sincerely,
Apollo_CAP
Ring them directly. They do credit card sales over the 'phone. Cut outIs there anywhere in UK/Europe who sells DalSemi parts? I've checked
all my normal buying areas with no joy (farnell, donberg, rs etc.)
Jas <Jasonf@nospamming.com> wrote in message
news:<n418gvg9ga0bfpbaridmij5hjd168edthc@4ax.com>...
Is there anywhere in UK/Europe who sells DalSemi parts? I've checked
all my normal buying areas with no joy (farnell, donberg, rs etc.)
Ring them directly. They do credit card sales over the 'phone. Cut out
the middle man...
0800 585 048 ask for sales
or 01189 303 388
They charge a fixed UKP 6.50 for P&P and seem (not surprisingly) to
always have good stocks. Donberg, I've always found expensive. Farnell
are not cheap but don't charge for delivery.
HTH,
Mike
"John Smith" <jocjo_john at yahoo dot com> wrote in message
news:<bdk3jr0utm@enews3.newsguy.com>...
Hi, all.
The TI TPIC6C595 (or ST STPIC6C595) is almost what I'm looking for. It
is an
8-bit shift register with open-drain outputs capable of several hundred
milliamps each and drain voltages of 33 volts (although the logics use
5V).
I don't need that much sink capability; about 50 milliamps would be
fine.
If it could also source about 10 milliamps or more, it would solve all
my
problems. I have searched for such a device but I have been
unsuccessful.
If anybody knows of a device which could do this, please let me know.
I don't. It's a bit difficult without further info, however. You say
what the TPIC offers, but not what you need. Do you need 33V of drive
voltage? Output tristate? Freewheeling diode? What about saturation
voltage?
If 5V is enough, what about a 74F595 (Philips)? Toshiba, Mitsubishi
(Renesas), Allegro, Rohm are other possible manufacturers.
Is a combination of a shift register with a separate driver IC (or
even with discrete driver transistors) out of the question? Such
combinations often can be done with very cheap parts and you have
lower risk of obsolescence. Overall parts count goes up, however.
Cheers
Stefan
yes!
www.maxim-ic.com
fax: +44 (0) 118 930 5577
(01628) 676176
"Mike Deblis" <mdeblis@hotmail.com> wrote in message
news:bc45f679.0307040200.6d264ee7@posting.google.com...
Jas <Jasonf@nospamming.com> wrote in message
news:<n418gvg9ga0bfpbaridmij5hjd168edthc@4ax.com>...
Is there anywhere in UK/Europe who sells DalSemi parts? I've checked
all my normal buying areas with no joy (farnell, donberg, rs etc.)
Ring them directly. They do credit card sales over the 'phone. Cut out
the middle man...
0800 585 048 ask for sales
or 01189 303 388
They charge a fixed UKP 6.50 for P&P and seem (not surprisingly) to
always have good stocks. Donberg, I've always found expensive. Farnell
are not cheap but don't charge for delivery.
HTH,
Mike
"Stefan Heinzmann" <stefan_heinzmann@yahoo.com> wrote in message
news:95e0e5ef.0306301158.5bcf7a2e@posting.google.com...
"John Smith" <jocjo_john at yahoo dot com> wrote in message
news:<bdk3jr0utm@enews3.newsguy.com>...
Hi, all.
The TI TPIC6C595 (or ST STPIC6C595) is almost what I'm looking for. It
is an
8-bit shift register with open-drain outputs capable of several
hundred
milliamps each and drain voltages of 33 volts (although the logics use
5V).
I don't need that much sink capability; about 50 milliamps would be
fine.
If it could also source about 10 milliamps or more, it would solve all
my
problems. I have searched for such a device but I have been
unsuccessful.
If anybody knows of a device which could do this, please let me know.
I don't. It's a bit difficult without further info, however. You say
what the TPIC offers, but not what you need. Do you need 33V of drive
voltage? Output tristate? Freewheeling diode? What about saturation
voltage?
If 5V is enough, what about a 74F595 (Philips)? Toshiba, Mitsubishi
(Renesas), Allegro, Rohm are other possible manufacturers.
Is a combination of a shift register with a separate driver IC (or
even with discrete driver transistors) out of the question? Such
combinations often can be done with very cheap parts and you have
lower risk of obsolescence. Overall parts count goes up, however.
Cheers
Stefan
Hi, Stefan.
I'll try to address your questions:
Essentially, I need what the TPIC offers but with the ability to source
some
current.
* The supply voltage is a 12VDC battery bus, so 33VDC is not absolutely
required.
* The output need not be tristate.
* Freewheeling diode not required.
* Saturation voltage is relatively unimportant except for the power
dissipation it causes. If the package can take it, almost any saturation
voltage is acceptable.
* Seperate shift register and driver is acceptable *if* all outputs are
source/sink with several mA capability.
Logic voltage is 5VDC but the final outputs will be sinking LED currents
(30mA each)from the 12VDC bus which could rise to 22VDC during fault
conditions. Yes, I know a current source is normally not needed for this,
but my particular application requires it to overcome temporary leakage
currents from the outputs to ground.
Thanks for your ideas. I will check them out.
John
Try Allegro www.allegromicro.com they have all sorts of drivers (see, for
example, UCN5811A http://www.allegromicro.com/datafile/5811.pdf)
Best Regards
Helper
----------------------------------------------------------------------
"User" <user@_no_spam_.com> wrote in message
news:w8sNa.65258$x4o.59775@news04.bloor.is.net.cable.rogers.com...
Try Allegro www.allegromicro.com they have all sorts of drivers (see,
for
example, UCN5811A http://www.allegromicro.com/datafile/5811.pdf)
Best Regards
Helper
----------------------------------------------------------------------
The 5811 (or another Allegro equivalent) may be the ticket. I had looked
at
these before but missed the fact that they were sources with sink
capability. (I was looking for sinks with sourcing capability.)
Thanks for your help.
John
Hallo!!!! ich habe das problem einen 1-to-2 Demux zu finden, der bis
min. 200 MHz arbeitet. Bitte um Infos
On Sun, 06 Jul 2003 21:11:44 GMT, Mike Sawalski <msawalski@wi.rr.com
wrote:
Found an old electronics hobby article about an experiment that I would
like to try. It involves creating an electromagnet using some magnet
wire around a Bakelite spool. I know that they don't use Bakelite
anymore, and am wondering what the appropriate substitute material (not
plywood) might be?
Any sources online that I can purchase this at (small quantities)?
Thanks!
-Mike-
Just about any non-magnetic/non-conductor with sufficient rigidity
should do.
It's been some forty years now since I've used Bakelite, but I can
recall turning bobbins/spools in a lathe.
...Jim Thompson
--
Cotton reels are handy.
Bakelite is/was just a non-conductive rubber/plastic compound. There'sFound an old electronics hobby article about an experiment that I would
like to try. It involves creating an electromagnet using some magnet
wire around a Bakelite spool. I know that they don't use Bakelite
anymore, and am wondering what the appropriate substitute material (not
plywood) might be?
Any sources online that I can purchase this at (small quantities)?
Thanks!
-Mike-
If you aren't planning to run enough current through the coil to heatFound an old electronics hobby article about an experiment that I would
like to try. It involves creating an electromagnet using some magnet
wire around a Bakelite spool. I know that they don't use Bakelite
anymore, and am wondering what the appropriate substitute material (not
plywood) might be?
Found an old electronics hobby article about an experiment that I would
like to try. It involves creating an electromagnet using some magnet
wire around a Bakelite spool. I know that they don't use Bakelite
anymore, and am wondering what the appropriate substitute material (not
plywood) might be?
Any sources online that I can purchase this at (small quantities)?
Thanks!
-Mike-
not as part of the molding process.Another term is phenolic. But nowadays most wire forms are made of
nylon.
Phenolic thermoset plastic. Requires oven cure after molding, if
Bakelite isn't used for much in the electronics world nowadays, but it'sFound an old electronics hobby article about an experiment that I would
like to try. It involves creating an electromagnet using some magnet
wire around a Bakelite spool. I know that they don't use Bakelite
anymore, and am wondering what the appropriate substitute material (not
plywood) might be?
Any sources online that I can purchase this at (small quantities)?
Thanks!
-Mike-
A plastic pill bottle.Hi Mike,
Without knowing the dimensions of the Bakelite spool.
A fiberglass tube. An old fiberglass arrow.
Wood dowel.
Thread spool.
Jay
Virtually any non magnetic material (most likely plastic of someFound an old electronics hobby article about an experiment that I would
like to try. It involves creating an electromagnet using some magnet
wire around a Bakelite spool. I know that they don't use Bakelite
anymore, and am wondering what the appropriate substitute material (not
plywood) might be?
Why? Hasn't been made in decades. Use something modern.Any sources online that I can purchase this at (small quantities)?