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Chad's Comment

Sun, 19 Feb 2017 18:17:35 +0000

Studying capacitors as well as transistors right now. Would adding one cause the light to blink?

divya's Comment

Sat, 17 Dec 2016 07:53:27 +0000

what is the principal for touch switch?

sravanthy's Comment

Fri, 08 Apr 2016 17:25:27 +0100

can i place the same circuit on pcb

Jhajha Bokarowasi's Comment

Thu, 26 Nov 2015 10:50:26 +0000

Done! Perfect. If Anyone needs help connect with me through Quora. Thanks Steve. Love you ♥

megha's Comment

Fri, 23 Oct 2015 19:44:06 +0100

will dis be perfect???? or if possible.. can u suggest me some better topics....

megha's Comment

Fri, 23 Oct 2015 19:42:26 +0100

hey, my question is.. where can i get a complete information on this in detail... since i need to submit it for my 12th boards... pls help...

Steve's Comment

Thu, 15 May 2014 08:33:26 +0100

Hi Sumit,

Any NPN from the pack listed in the parts list on page 2 of this article should do just fine.

sumit's Comment

Mon, 05 May 2014 08:13:27 +0100

which NPN transistor did i use???

Steve's Comment

Sun, 06 Apr 2014 15:40:15 +0100

Hi Nisha,

This circuit is meant to demonstrate the use of a transistor as a switch. It can be used anywhere that a small current signal is available but it must switch a larger current.

This requirement crops up every day when interfacing microprocessors with external equipment for instance. Even turning on an indicator LED from an output pin of a microcontroller is often done using a circuit like this with the output pin driving the base of the transistor.

I hope that this helps you to think of other applications for circuits like this.

Steve

nisha's Comment

Sun, 06 Apr 2014 15:12:41 +0100

its gud bt i wonder whether its useful in dae to dae life!