Latest threads in Hobby Electronics Basicsshow only best voted threads
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basic application inquari
My application is a programmable board+ high noise sound sensor+ speaker. First i need to know how can i purches compatible component and from where can i bay it and how can i programm it.
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15 years ago
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Minimising current in unused op amp
Hi All, Having found dual op amp packages around a fifth the price of comparable single packages from online distributors, I think i'll go for the double. (BTW, I'm using supply of +16, and ground). I...
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15 years ago
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information about bridge rectifier
hi thanks for ur kind informaation which u have given,but i want to know a small detail about bridge rectifier. DOES THIS BRIDGE RECTIFIER CAN BE CONNECTED TO THE 230VAC/50HZ SUPPLY ,WITH OUT...
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15 years ago
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Archive Video Format standard
Preserving our visual History and Data needs a robust format that will be around for years into the future. After looking at all the options digital Beta Tape as used by commercial TV Stations should...
2
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15 years ago
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TO-220 pinout standard?
Is it standard that a TO-220 transistor package is, with the tab up, with the markings facing you, Base, Collector, Emitter? (for example, on the TIP31A) I noticed the TO-92 2N3904 I have is (with the...
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15 years ago
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less current consuming circuit for led lamp
i am working on a project called less current consuming led lamp,and the major idea of this project is less consumtion of current and compact in i have planned to take out transformer ,which consume...
2
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15 years ago
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LM1875 on a single supply
I was reading the datasheet for the LM1875 and I noticed that they do have a schematic for a single supply (as opposed to a +/- supply). If running on a single supply, does the chip amplifer consume...
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15 years ago
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Simple audio signal to level convertor?
Hi, I'm looking for a circuit that can read a standard line level audio signal and output a continous voltage 0-5v proportional to the amplitude of the input. This in turn would be read by an...
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15 years ago
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Dry dead battery
I was charging my battery over the weekend and checked it last night to find the battery dead as a doornail. Upon examination, the battery is completely dry. I'm guessing it was overcharged and the...
22
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15 years ago
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monitor a distributorless ignition system
I would like to data log commanded spark events for my vehicle. It uses a Distributorless Ignition System which consists of a engine control computer, a control module, and a coil pack. The coil pack...
6
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15 years ago
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Incandescent Filiment Support Prongs?
Are the filiment support prongs in an ordinary household incandescent light bulb made of Nickel metal or some type of Nickel alloy? They look shiny like stainless steel. I've been using them as points...
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15 years ago
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Can nichrome be soldered?
Can nichrome be soldered to nichrome? Can nichrome be soldered to copper? insula
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15 years ago
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on winding a transformer
I've got a toroidal core, and I'm planning on winding it with pulsed 12VDC on the primary, and want to get out 50V on the secondary, center tapped so I can get +/- 25V. The 12VDC will be provided from...
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15 years ago
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Question about pole frequency in opamp
If i consider an opamp in corrent-to-voltage configuration with: -ideal generetor current in inverting input -non inverting input to ground -feedback resistance equal to 100Mohm -open loop gain egual...
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15 years ago
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CIE?
Hello everyone, Has anyone on this forum taken a course from the "Cleveland Institute of Electronics" (CIE), and if so, what is your opinion of the school? Is it worth the money? If you don't won't to...
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15 years ago
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