Latest threads in Hobby Electronics Basicsshow only best voted threads
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Connector naming convention
What is a general term for a connector - any connector in common use, male or female - that's fitted at the end of a cable, to distinguish it from one that's mounted on a box or a pcb?
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13 years ago
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Can A Band Pass Filter Speed Up Lock In Amplification?
Is prefiltering or filtering before the phase sensitive detection step of lock in a common practice? If the signal frequency is in a fairly narrow band, say one octave, can a band pass filter speed up...
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13 years ago
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Micro controller and printer
Hi, how people have connected a printer to micro controller? On my quest to learn PICs (mostly the 32-bit). I have only used included basic in the BV513 to learn how to connect external circuitry to...
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13 years ago
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Using a 18" Dish for Radio Astronomy Demonstrations--Need Simple Power Supply
13VDC up the coax, center positive. yeah, 12V may be enough, the connector is probably 'F' with the input open circuit unloaded and the output shorted it could be oscilating, or that could be the base...
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13 years ago
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Destructive Testing On SPICE
Is there any circuit simulator that accounts for overload and failure of components? Bret Cahill
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13 years ago
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Dimmer circuit vs solid state relay ?
I used a dimmer circuit to control my heater 1600 W instead of a solid stste relay as both use a equal 25A triac as a on and off switch. The triac of the dimmer circuit become very hot which is...
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13 years ago
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Anyone Know where I can get a 5" usb floppy drive?
See subject?
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13 years ago
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Blower speed
I am converting an old computer fan into a blower. Over here at 240 volts, its speed is not adequate. Is there any way to increase the speed (rpm) without burning the motor. Thanks. Steve.
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13 years ago
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What does "high side" MOSFET driver mean ?
Not being a power electronics person, could some electronics guru please explain the term "high side" MOSFET driver. Thanks in advance.
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13 years ago
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4mA current regulator
can anyone offer any suggestions on how to make a simple 4mA current regulator... I started looking at LM317 voltage regulators, but found that they're gonna output a minimum of 10mA... I'm now...
32
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13 years ago
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ringing inductor in boost circuit
I breadboarded a little voltage booster. Here's the business end of the circuit: +5v | ,------------+ | | | | | ) | )220uH /e ) -1k--| | c ,----+--+-->|--+--out | | | | | | 68pF = | | | | | /c | |...
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13 years ago
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Rare Example of Instrumented Bldg Damaged During During An Earthquake
Two interesting questions: Why aren't they instrumenting bldgs today with relatively cheap MEM accelerometers? Who decided to spend the equivalent of 200K on force balance accelerometers and other...
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13 years ago
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Photovoltaic inverter question
I have a photovoltaic inverter related question. Recently I have been looking into the possibility of building a grid-tie photovoltaic inverter. A number of semiconductor vendors e.g., Freescale, TI...
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13 years ago
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Video cards
Hi, I am wondering how these Video cards are made. I have now studied little bit of Verilog and VHDL - very interesting indeed. I assume commercial video cards use ASICs. But are they defined with the...
2
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13 years ago
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Capacitor discharge probes
Hello, I recently bought a Blue ESR meter and assembled it and it is working well. In the instructions it mentions making a jig with a 100 ohm 5 watt resistor attached to some probes for discharging...
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13 years ago
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