Hobby Electronics Basics

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Electronic Ballast ?

Recently people talk about energy saving in the elecrticial home appliance.such as the use of electronic ballast to sub...
5 comments posted 19yrs
posted by mowhoong
5 comments posted 19yrs posted by mowhoong

AC line-powered LEDs

I have a Telechron clock radio from the early 1950's. I'm going to build this circuit (it's in the middle of the page):...
2 comments posted 19yrs
posted by Totalrod2
2 comments posted 19yrs posted by Totalrod2

Measure RMS current (non-sinusoidal)

If I wanted to measure RMS current from the mains, as well as peak inrush, is this setup valid. Using a scope (DSO). Sc...
15 comments posted 19yrs
posted by spamme
15 comments posted 19yrs posted by spamme

final year project

hi...this is saranya..I'm a final year instrumentation engr.Can u suggest a few projects for me.I get many projects in...
6 comments posted 19yrs
posted by saranya18_87
6 comments posted 19yrs posted by saranya18_87

Homebrew radar?

--Wondering how impractical it would be to build a short-range (a couple of hundred feet) radar with a CRT display, to...
16 comments posted 19yrs
posted by steamer
16 comments posted 19yrs posted by steamer

Capacitor Help

I need help selecting a 0.1uF non-polarized capacitor for a project I am working on. The capacitor would be used in an...
4 comments posted 19yrs
posted by gecono
4 comments posted 19yrs posted by gecono

Best method for remote control of a PSU

What is the best method for remote control of a PSU just to control switching it on and off? I was looking at data shee...
4 comments posted 19yrs
posted by spamme
4 comments posted 19yrs posted by spamme

Spice: Can it display Watts or dBm?

Hi All, I would like Spice to display results in Watts or dBm. Is this even possible? Spice only seems to want to graph...
4 comments posted 19yrs
posted by billcalley
4 comments posted 19yrs posted by billcalley

Are there any books with circuit puzzles

I don't want online sources, I would like to know if there are any books which have circuit puzzles I can solve startin...
10 comments posted 19yrs
posted by orangepic
10 comments posted 19yrs posted by orangepic

spice foldback protection

it is all the day that I try to obtain a plot voltage V.S. currente in this small circuit that I am try to designe http...
2 comments posted 19yrs
posted by dunsscoto2
2 comments posted 19yrs posted by dunsscoto2

[information] Picinit for PIC 16F84A

Hello, Picinit is a free utility which is addressed to those which program the PIC 16F84A microcontrollers in assembler...
0 comments posted 19yrs
posted by fabrice.sincere
0 comments posted 19yrs posted by fabrice.sincere

Equations for this bass boost circuit?

Hey all; I've designed the bass boost circuit below: .047 uF || .----||--. | || | | | | ___ | o---___|-o---o | | | 80k...
3 comments posted 19yrs
posted by toccata
3 comments posted 19yrs posted by toccata