Latest threads in Hobby Electronics Basicsshow only best voted threads
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Energy Saving Tips
1. Reduce heater's room temperature For each extra degree (Celsius) of temperature, your heater will consume 7 to 11% more energy. Adjust it to 18degrees which is also better for your health. 2....
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13 years ago
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1) Costas Phase Lock Loop + 2) MSK first nulls bandwidth
Hello, Hopefully this is appropriate place to ask. 1) I'm studying Costas Phase Lock Loop (e.g. And I'm trying to analyse it, and I'm a bit stuck. Consider that the baseband signal (carrier / y(t) )...
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13 years ago
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I2C monitor
Hi, I have been thinking about how to connect to I2C bus, so that I can see whole activity going on. Maybe I should set the max speed requirement to 400k but the highest speed of about 3.5M would be...
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13 years ago
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suggestions for higher power white LEDs to testing?
I've stayed completely away from driving the higher powered white LEDs, so far. But I'm interested in playing with some various boost driver designs of mine made from spare parts I make out of dead...
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13 years ago
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no cd drive
I have a PSpice program on cd that I want to load on my netbook, which doesn't have a cd drive. This netbook runs on xp. I don't want to buy an outboard cd drive just for this one thing. Is there some...
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13 years ago
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Kill-a-Watt meter for 110-220 Volts
I'm in California, USA. During the summer, the wall mounted air conditioner probably consumes around 80 to 90 percent of the electric power used in my apartment. This AC unit has a 220 power plug...
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13 years ago
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How many watts drawn by basic consumer power supplies?
I am trying to find out how many watts are drawn by the consumer power supplies used by my home modem, router, and laptop PC. These are the small, standalone power supplies that plug into the wall and...
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13 years ago
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internet bandwidth question
Let's say for example a colleague of mine wants to start a news network: something comparable to or Millions of people would be visiting the site at all hours of the day. What kind of web host could...
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13 years ago
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Fundamental Difference Between Integration & Other LP Filtering
It may be nothing more than a frequency issue. If you are a decade below the corner frequency it's an integrator.
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13 years ago
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Removing battery from Pogo (Radio Your Wave)?
The Subject radio is discontiuned, but I still occasionally use mine. It's sort of like Tivo for radio. Anyway, I decided to charge it the other day. It had completed, I think, and I could not get the...
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13 years ago
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Dielectric properties and Maxwell equations absurdities
Dielectric properties and Maxwell equations absurdities It is accepted by mainstream physics that Maxwell equations describes the entirety of classical electromagnetism. These equations are some of...
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13 years ago
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Easiest - Approximate Phase Angle Between Two 4 SNR Signals
Both signals have mostly the same noise. The noise is at least several times higher in frequency and usually several times lower in amplitude. The phase angle will be less than 5 degrees. The bad news...
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13 years ago
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Severall questions
Hi, I bought reflow soldering station from USA. I don't know why it did not occur to me that the voltage over there is 130V. Now I bought an transformer from 250 to 130. But the output does not...
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13 years ago
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soldering?
I'm comfortable with soldering components to a board (mostly thru-hole stuff), but I still struggle greatly with soldering wires to parts. What is the process for soldering a wire to a connector?...
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13 years ago
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modifying existing LED cirtuit
Hello all, i have a basic question to ask, i tried to find it on the web but with no luck. i am trying to use a LED array taken from a lamp sold in a discount store for 2$. It is quite simple, 5...
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13 years ago
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