Hobby Electronics Basics

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Which Diode?

I'm making a very simple coilgun. This basically works by charging up a capacitor and discharging it through a coil. I...
6 comments posted 22yrs
posted by mike
6 comments posted 22yrs posted by mike

Question on State Table Outputs

Hi. I'm taking a course on introductory digital logic, and there is a question where I have a disagreement with the ins...
6 comments posted 22yrs
posted by null
6 comments posted 22yrs posted by null

What's a "charge pump"?

Helo, whats a charge pump, what does it do and how does it work? Is it true it can be used to step-up DC volatages? tnx,...
7 comments posted 22yrs
posted by smevans
7 comments posted 22yrs posted by smevans

Choice for snubber cap?

Which type capacitor is appropriate for a triac driver snubber? I'm using a sensitive-gate triac (Teccor L601E3) with a...
11 comments posted 22yrs
posted by npreston
11 comments posted 22yrs posted by npreston

How To: DC +/- Power Supply?

Hello, Please excuse my stupidity here; I've checked the web, but can't seem to grasp the concepts. I'm working on a pr...
6 comments posted 22yrs
posted by jeremycyr
6 comments posted 22yrs posted by jeremycyr

Chandelier going from 110V to 230V?

Please help me with a simple problem. I inherited a beautiful old chandelier which I want to offer a cousin living in P...
8 comments posted 22yrs
posted by roy
8 comments posted 22yrs posted by roy

Cadence/Tone Telephone in Mexico?

I am looking for cadence of tones in telephonic lines in Mexico, line busy, dial tone, ... Thanks. Sorry for my English....
2 comments posted 22yrs
posted by roque_jbb
2 comments posted 22yrs posted by roque_jbb

changing wire gauge

I have a question about wire gauges. I've seen a plethora of information about gauges of wire and the current that shou...
3 comments posted 22yrs
posted by warnockmREM
3 comments posted 22yrs posted by warnockmREM

Transformer

Hi, I would like to make a 800V DC power supply, which will be used to charge a capacitor bank. The power supply will r...
8 comments posted 22yrs
posted by jim
8 comments posted 22yrs posted by jim

Capacitors for PWM circuit (20-40kHz)

Hi all, Im after a bit of advise regarding the different types capacitors, I need to "trick" a PWM circuit that monitor...
1 comments posted 22yrs
posted by jamie_s_22
1 comments posted 22yrs posted by jamie_s_22

Shared clock and data pins

I'm relatively new to A/D converters and such, and was wondering if I can put two or more A/D converters on the same cl...
6 comments posted 22yrs
posted by dave.harper
6 comments posted 22yrs posted by dave.harper