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ante
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Posts posted by ante
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Hi Daisy,
If the resistor lowers the reading its value is too high. If the capacitor makes no difference its value is too low. It all depends on the internal resistance of the meter. If you use a cap without a resistor the cap will charge very fast on power up and discharge fast through the loads when power is removed i.e. no effect. You have to choose a resistor that influences the meter as little as possible and a cap which is large enough to give you the desired effect. -
Hi John,
That will probably, just like many other questions remain unanswered! If someone would remove all kinds of documents and stuff which are copyrighted, this site would vanish completely! If you do everything “by the book” it is illegal to post all kinds of pictures, schematics and circuits unless the author has given his blessing in writing and you also post this permission.
In other forums (EDA-board) as an example there are no such limits and no one is complaining about copyrighted material being posted.
These matters are obviously not open for discussions here at E-Lab! -
Of curse, that would also work. These alternatives do not alter the VA rating as other solutions would, at least not noticeable.
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That didn’t exactly answer my questions. :-\
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Remember to check the maximum available current for the -5V tab! Also the motherboards current requirements at -5V. Often the current is just -0.5A and this might affect the motherboard even more than other solutions. A fan might use almost as much at startup and this might wipe out the initiation phase of the motherboard causing it to produce errors!
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The author has been using this circuit in excess of 2 years in robots he builds. I see no reason to rumor that it does not work.
MP
The author refers to this circuit as “very crude” which probably means that he is well aware of the fact that it can be significantly improved! -
Thanks audio
No I have tried a capacitor in that way but it does nothing to improve the gauge. Anything else ?
Daisy
Have you tried to use both a capacitor in parallel and a resistor in series with the meter? -
Are you sure about having it wireless? It might run for a few hours on a PP3 but with half a dozen IR LED’s it will only last for 5 minutes or so.
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I am sure you know I was just kidding Steven! ;D However you can get your hair to stand up if you are charged with static (HV) though! ;)
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Hi there i have problem with my transformer power supply. The input is 415v and the output is 130v. Now i need 110v from the 130v, so how to get 110v from 130v? Only need to reduce 20v to get 110v. What electric part or electronic part to reduce this voltage???? Plz help to solve my problem. Thanks.
The sensible thing to do (if possible) is to remove a number of turns on the 130V winding to get an 110V output. -
OK, and at which frequency does the 50 and the 75Ohm wire put up zero Ohms impedance?
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Why was the attachment Deleted?
Perhaps for the same reason as all the other useful stuff was deleted; its copyrighted material! -
Oh yeah, I forgot to update this one! Sorry!
I found that the inverter transformers (both of them) had open circuit (secondary)! I scavenged a couple of working inverters in a dumpster at work and the thing is now working perfectly. I can’t figure out why both transformers “died” but as things developed, who cares? ;D
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Subs uses much lower (VLF band) frequencies at 3-30 kHz to communicate digitally sometimes even ELF!
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Coax cable is 50 ohms or 75 ohms. A short is zero ohms, a big difference.
Hi AG,
At which frequency is it a short (zero ohms)? How many meters (or feet) is 50/75Ohms? Are you talking resistance or impedance here and what frequency? -
;D Stun guns are supposed to “stun”, this camera circuit is way too lame to do any harm so don’t worry!
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One post would be enough, no need to litter the site! >:(
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No pop-ups if you have a proper browser! However the site has very little to offer; only “Prjects” links to already well known sites! >:(
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Hi John,
Welcome to our forum.
To stabilize the voltage we need to see the circuit schematic. -
Hi Steven,
Isn’t all bicycles upside down, down under? ;D -
These bulbs are usually something like 10 – 20 W, this is not always marked on unfortunately.
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Hi vdd,
If you can “open up” the proxi sw you will find a Schmitt trigger in the circuit, this is what makes the output a switch. The circuit before the Schmitt trigger is an analog inductive sensor. -
Hi Steven,
The 2A 250V you’ve got there must be the maximum rating for the socket not the bulb I believe. -
Hi John,
Yes, this must be a brand new database in which they haven’t put any data yet!
I also tried many part# and they all came up empty! >:(
NEC monitor help!
in Service Manuals
Posted
The 12V supply was fine, only the output from the inverters was missing.