Re: Flyback transformer test
Bob, Use the Horz driver circuitry that was in the original monitor as its tuned to the correct freq. The transformer works best at that freq and will have the proper driving signal. Caution though as
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David Balma <balma.d@...>
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#9258
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Re: Flyback transformer test
wrote: I am not a TV repair expert, but the flyback transformer may be powered from a higher voltage supply. 9v may be producing a few thousand volts but not enough to make a spark. You need around
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manifold
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#9257
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Re: VU Led meters
I think radio Shack still carries the LM3915 bar/dot display driver. This easy to use chip is the standard way of creating a bar or dot display for vu meters. National Semi has obsoleted the DIP part
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manifold
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#9256
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Flyback transformer test
I picked up an old 14" monitor at Goodwill for $2.00. It worked. I removed the flyback transformer for HV experimentation. I hooked up a 9 volt battery on the input and setup a small gap between the
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rsnyder187
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#9255
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VU Led meters
Hello, in the past I have received all the help I needed here so again I turn to you guys! I would like to add 2 VI Led meters to a small amp I built a few weeks ago. It produces about 2 times 30
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J-P <jpsch@...>
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#9254
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Re: what can the cable company detect?
In teh old days one could locate a short by knowing the cable properties (ohms/meter) and sending in a signal. By measuring resistance or signal delay times across the cable, a position can be
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a.mil@...
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#9252
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Unknown Transformer
Hi all, I'm have a small transformer on hand but I have no information about it. Is there any way to find the voltage output, Amp. output from the it? All I know is the primary is a 120ac designed to
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Davin <dy9213@...>
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#9253
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Re: Sensor suggestion?
PIR (Passive Infra Red) I actually spotted a 12V unit and picked it up. Taking it apart was an education. Looking at everything, I think I'll stick to buying pre- made units. I can buy the PIRs from
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ghidera2000
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#9251
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Re: what can the cable company detect?
feet repair to later I think it's the cell phone company's who really have no idea what's going on. I forget what company my friend has, but he gets all kinds
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Matt <mattsoft@...>
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#9250
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Re: parallel port interface
for being a relay, reed relays use very little power. the ones I have use about 20ma at 5v. but it still being a relay, it sends a high voltage surge thru the wire when power is disconnected. insted
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Matt <mattsoft@...>
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#9249
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Re: Sensor suggestion?
wrote:
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manifold
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#9248
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Re: ohms Theories ?
snip %<-------------- equlibrium in the cells. Eliminating all but the refined NaCl that Whoa, Dave, thanks for the info, but layoff the coffee for a while!
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manifold
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#9247
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Re: what can the cable company detect?
wrote: problems. lots of to cross the bill :) so. are by I had a problem years abgo (bef
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Dave Mucha
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#9246
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Re: what can the cable company detect?
I had a problem years ago with the phone. We were billed 10 times as high as usual, so something went awry. Asking the phone company, they told they could detect how many phones were connected in our
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Albert van Mil <a.mil@...>
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#9245
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Re: parallel port interface
On Friday 26 March 2004 07:50 pm, peterhawken wrote: > --- In Electronics_101@..., "Matt" <mattsoft@m...> wrote: > > --- In Electronics_101@..., "bruxieus" <el@j...> wrote: > >
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Roy J. Tellason <rtellason@...>
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#9243
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Re: parallel port interface
simple. The you find talking about they're only Reed relays are pretty light current wise. Dont have it in front of me but I think my 5 volt reed took 15mA inrush and 5mA holding current. BackEMF is
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ghidera2000
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#9244
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Re: parallel port interface
for to remote
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peterhawken
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#9242
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Re: parallel port interface
remote want use can (and internet external
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Matt <mattsoft@...>
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#9241
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parallel port interface
OK, here's my situation. I'd like to be able to "activate" two separate buttons on a TV remote control via a computer. (yes I'm sure people will ask why I want to do this, but I don't want to
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bruxieus
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#9240
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Re: stereo connector as power plug
<upand_at_them@y...> wrote: That might work. I have network connectors (RJ-45) as well as phone (RJ-11) and I'll have to check the wire gage. Might just work ! Dave
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Dave Mucha
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#9239
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