Hobby Electronics Basics

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Simple Question

I have a simple question. This is a qustion that I was asked in a job interview. If there existed and infinite two dime...
72 comments posted 20yrs
posted by edolan
72 comments posted 20yrs posted by edolan

Interesting history on the design of the 555

http://semiconductormuseum.com/Transistors/LectureHall/Camenzind/Camenzind_Index.htm ----== Posted via Newsfeeds.Com -...
0 comments posted 20yrs
posted by default
0 comments posted 20yrs posted by default

how do I interface to use a JFET as a switch?

Hey all; I have a guitar effects pedalboard that switches the effects in and out via relays.The switching is set up lik...
11 comments posted 20yrs
posted by toccata
11 comments posted 20yrs posted by toccata

About P-MOSFET

I want to ask about making P-MOSFET: 1) the materials i use for making field oxide and the material i use for making ga...
5 comments posted 20yrs
posted by laura_pretty05
5 comments posted 20yrs posted by laura_pretty05

Metal Oxide Resistors (thin film)

Hi, I need to know the pulse handling capability of 3K9/2W MOR(thin film) for a voltage pulse having a maximum voltage...
14 comments posted 20yrs
posted by kfel
14 comments posted 20yrs posted by kfel

Transistor

Hi, I have a doubt. Could anyone help me with this? Let us consider a properly biased transistor. Let us assume that I...
6 comments posted 20yrs
posted by beenuseren
6 comments posted 20yrs posted by beenuseren

4-pin Crystal

I usually see crystals with 2-pins. Can anybody tell me what are the other legs for in 4-pin crystal oscillator packages...
7 comments posted 20yrs
posted by wonghoi
7 comments posted 20yrs posted by wonghoi

DRV134 - question about phase

Not sure if this is the correct group to post this. If anyone can suggest a more appropriate place, please do so. I've...
5 comments posted 20yrs
posted by google
5 comments posted 20yrs posted by google

Component Conversion

A circuit calls for 0,0047 micro farad capacitors. I been supplied with 4,7 nano farad capacitors and the circuit doesn'...
4 comments posted 20yrs
posted by neville.ewing
4 comments posted 20yrs posted by neville.ewing

OT: Truth is google search

Google is finally giving a true search result: go to www.google.com and type in "failure" as the search term and click t...
0 comments posted 20yrs
posted by Jamesthompson2002
0 comments posted 20yrs posted by Jamesthompson2002

Calculate the speed of an object

I need to build a device to measure the speed of a pine wood derby car. One idea was to use two photo censors connected...
5 comments posted 20yrs
posted by thall91739-nospam
5 comments posted 20yrs posted by thall91739-nospam

bluetooth headset noisy

Hi I bought a Samsung WEP200 headset and when in my ear and not in a call I hear a high pitch noise. When in a call I c...
0 comments posted 20yrs
posted by interuser
0 comments posted 20yrs posted by interuser

Question - how to hook up telephone through stereo?

Hello I have a question that I'm desperately searching an answer for. I am wondering if it is possible (I'm pretty sure...
3 comments posted 20yrs
posted by daveallston
3 comments posted 20yrs posted by daveallston

4017 without a CLK signal

Bit of a dumb question... I have this 4017 decade counter chip that I want to use, but instead of hooking up a clock si...
11 comments posted 20yrs
posted by jst3712
11 comments posted 20yrs posted by jst3712