Latest threads in Hobby Electronics Basicsshow only best voted threads
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breadboarding
oh yeah!
25
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15 years ago
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Another basic Q - trace charge or current in a circuit?
Hi, All, another basic/learner's question: When you're looking at a circuit, and trying to analyse how it works, are you supposed to trace current, or charge? It's my understanding that current is...
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15 years ago
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Searching for ultra low Cjo diodes
Hi, Does anyone know of inexpensive (less than 30 cents each @ QTY 1000) high frequency Schottky diodes with no more than 0.01pF per diode? The best I can come up with are from Skyworks Inc., which...
10
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15 years ago
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Is there anything wrong with coupling these two circuits?
Some of you may have seen my earlier posts regarding two of the Velleman mini kits that perform sound to light. Ideally I want to be able to take a mic level signal and control 2 20w 12v lamps. Just...
1
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15 years ago
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current and current consuming devices
I just had a couple of questions about current... can I device draw too much current for itself? I mean... if I hook up a device that uses 1amp to a power supply without a current limiting control...
15
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15 years ago
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15 | |
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Recommend an inexpensive OPAMP with RR input and output
It will be operating off 5V. I don't need high BW and uV offset voltage 10mV or so is fine. I'm placing an order through Newark and there parametric search is useless. I thought I found an ideal one...
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15 years ago
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microphone too hot - can I just insert a resistor?
Hey all; I've got a condenser microphone (balanced output, 48v phantom power) mounted inside my guitar. The output however, is WAY to high, and it's distorting the input on my mixer. Can I lower the...
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15 years ago
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23 | |
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LED's on a car
Hello everyone. I wanted to replace some of the lights in my car's cabin with LED's. I want to know what value resistor I would need if for example I would use 2, 4 or 6 LED's. I was playing with some...
4
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15 years ago
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4 | |
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What is the best / better Circuit simulation software to use
Hello, This problem has probably been debated quite a few times before, but I would like to get your opinions. I am starting out in electronics, but would like to know which piece of circuit...
7
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15 years ago
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7 | |
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Distortion In LM386 Amplifier
I have an amplifier in my workshop, for listening to tunes from my iPod, but if I turn it up louder then whisper level, it distorts, pretty bad. I've been going nuts trying to figure it out, even...
15
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15 years ago
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15 | |
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Various Forcasts for Battery Improvements
Anyone knowledgeable on energy storage technology who gives advice on investing in, say, copper, might be wondering about future advances in battery technology. No one can predict names, dates or...
14
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15 years ago
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mosfet as switch
hi, I have two 12v batteries which I am hooking up in parallel using a mechanical switch (via the ground). I am attempting to swap the mechanical switch for a mosfet so I can control them from a...
29
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15 years ago
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29 | |
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need HD spindle motor driver
I have a number of small spindle motors salvaged from old hard drives that have only 3 connections. As far as I can tell using my VOM, the 3 coils do NOT have a common ground connection......or at...
1
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15 years ago
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Photodiode amplifier
Hi, I am having trouble making the receiver part for my laser range finder, but I do have a head start (FYI, I am not an analog person). Currently, on my board, I have a PNZ334 photodiode connected to...
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15 years ago
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I got this theory
I got this wild theory that when the ET spacecraft crashed at Roswell, that the US government got android technology from that ship. And the androids are half human half machine and they can become...
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15 years ago
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