Hobby Electronics Basics

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Console stereo

I have ordered the schematic for this stereo,I think the problem may be in the RF gain for the fm what do you think?
3 comments posted 19yrs
posted by icolt45
3 comments posted 19yrs posted by icolt45

Convert battery powered to battery backup

I just installed one of those cheapo battery powered (two 1.5V AA) thermostats. It occurred to me that I could run a re...
14 comments posted 19yrs
posted by runderwo
14 comments posted 19yrs posted by runderwo

Induction sensor

I'd like to build a metal detecting induction proximity sensor. Something that can pick up a stainless disk (size of a...
13 comments posted 19yrs
posted by none
13 comments posted 19yrs posted by none

broadcast audio signal

I was just wondering if you can broadcast an audio signal (100 Hz to 20 kHz) over the airwaves without upconverting it....
8 comments posted 19yrs
posted by bob
8 comments posted 19yrs posted by bob

Knowing leads of two RCA 2n109 transistos?

I have two RCA transistors; one has a black cap with three short leads forming a straight line, the middle one closer t...
3 comments posted 19yrs
posted by dingd
3 comments posted 19yrs posted by dingd

phonic intermittance problem

i am having problems building a device to interupt a high voltage flow of electricity. i initialy tried to use an optoc...
2 comments posted 19yrs
posted by benjamin.quique
2 comments posted 19yrs posted by benjamin.quique

Job Opening - Mechanical Engineers (Freshers)

Hi, The opening is in Altair Engineering Pvt. Ltd. headquaters in Troy, US. The opening is for Bangalore, India R&D off...
1 comments posted 19yrs
posted by pranav.aggwl
1 comments posted 19yrs posted by pranav.aggwl

Part numbers

Hey everybody, Anyone care to help A newbie figure out what part numbers are all about? what I mean here is... I have m...
10 comments posted 19yrs
posted by jpbrown
10 comments posted 19yrs posted by jpbrown

Analog multiplexor help

I was recommended to use a analog multiplexor to expand the number of ADC ports on a picaxe "cpu" earlier. I have now t...
12 comments posted 19yrs
posted by nospam
12 comments posted 19yrs posted by nospam

saturating n bit counter

Hi, i am confused with saturating n bit counter. Is it not simply a normal counter with following sequence ?? 000 001 0...
6 comments posted 19yrs
posted by binayaj
6 comments posted 19yrs posted by binayaj

40 PIC Projects

Hi, Here is the 'new and improved' pic projects website. http://mondo-technology.com Luhan Monat
1 comments posted 19yrs
posted by luhanis
1 comments posted 19yrs posted by luhanis

Fujitsu flash memory programming specification

Hi all, I've to develop an algorithm for this Fujitsu device: MB90F347CA, but I don't found the flash memory programming...
0 comments posted 19yrs
posted by benderculo
0 comments posted 19yrs posted by benderculo

PCB+Assembly service!!

We are manufacture low cost, high quality PCB prototypes in China. we also supply RoHS Compliance,Leed Freed PCB protot...
1 comments posted 19yrs
posted by xuyanzilin
1 comments posted 19yrs posted by xuyanzilin

ps filtering and regulation

suppose I have a ps that has about 35VDC after filtering. I'm trying to determine what minimum filtering caps I can get...
9 comments posted 19yrs
posted by Jon_Slaughter
9 comments posted 19yrs posted by Jon_Slaughter

Small Speaker Box Design

Trying to optimize a small wooden speaker box for voice (speech) frequency range. It's a 5 X 3.5 X 1.5 box made out of...
2 comments posted 19yrs
posted by wrongaddress
2 comments posted 19yrs posted by wrongaddress