I'm teaching myself how to create electronic circuits and electronics in general. Basically, I want to be able to intelligently fiddle with small circuit boards for some halloween anamotronic figures that have blown circuits. Spent a lot of money on these things and want to be able to fix them.

I want to use any chip Input will 5voltDC output will be voice recorded inside IC do you know any IC name number?
I want to use it with fire alarm.
or I need any IC that at least make a voice in speaker.
circuit i am making is below

http://www.electronicsforu.com/efylinux/circuit/cir58.gif

and I dont know about COB chip on board
it only produce any type of melody/continuous beep or what ever.

I need information about remote control for small car
- electronic circuit
- how to control this car from computer.

Such as Power input? how do resistors and capasitors work? how does a 5V power supply get regulated down to a 1.8V? What should I keep in mind if I were to turn an electronic schematic into a PCB using PADS Power PCB

The only thing that I understand about capacitors is that they are an open circuit in DC and they have impedance in AC circuits. I just don't understand the purpose of a capacitor. I know that it charges and discharges and provides a time constant when included with a resistor. Please explain the purpose of a capacitor, when included in circuits using transistors and diodes

Small circuits (with 3/4 xstrs, 1/2 chips, but not expensive ! ) , interesting, useful …

i'm struggling with this question ,i couldnt find the value of R1 and R2 and if u have any info about how i can use pspice program plz tell me
the question details is inside the file below.

http://www.freewebs.com/radicalfunction/Questions.doc

plz help me

I need to make a series of circuit, each made up of a relay and a capacitor.

At the local electronic store, I only found only circuit board which is already leaded in series of connected lines (horizontally).

I need a circuit board of only holes with single lead so that I could arrange the circuits ( 1 relay and 1 capacitor) in linear form, side by side and the terminals of the relays and capacitors won't short circuit.

Is there such a circuit board? What do people call it then?

You know, those 2" by 2" by 3/4" (WAGNER hockey puck) adjustable solid state timers? Sorry, I'm not much on electronic theory. Are they susceptable to voltage/current surge? Magnetic flux? Will that screw them up so they might instantly reset or infinite time out? I've got one in my furnace circuit, and I think that when the high voltage transformer for spark is energized it messes with the timer (and I end up having to get them replaced every so often as they intermittantly fail).
Thanx!