Electronics Down Under

Bye Bye Radio Shack

We've never had Radio Shack here in Oz, it's always been called Tandy, but this might be important for you US folk - Ra...

14 comments posted 17yrs

posted by altzone

14 comments posted 17yrs posted by altzone

anyone build a simple amp for me?

I want a simple circuit made. An eletret microphone on one end and an earplug on the other, sensitive as possible. I tr...

30 comments posted 17yrs

posted by h

30 comments posted 17yrs posted by h

IR detector behaviour query

Trying to get a RPM7100 IR detector going (Jaycar cat no ZD-1952). I have the IR source emitting a 38 KHz square wave,...

2 comments posted 17yrs

posted by bxvarley

2 comments posted 17yrs posted by bxvarley

TV remote button problem

What is the fluid on the circuit board for? Some of my old remote control buttons don't work so I open it up, spread th...

5 comments posted 17yrs

posted by yawongweir

5 comments posted 17yrs posted by yawongweir

Audio-Sound Modules

New 6-Aug-2009: Audio-Sound Modules 4dSystems SOMO-14D Embedded Audio-Sound Module The SOMO-14D is a tiny Audio-Sound m...

0 comments posted 17yrs

posted by 5V

0 comments posted 17yrs posted by 5V

Fireplace logs

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0 comments posted 17yrs

posted by gracebrekker

0 comments posted 17yrs posted by gracebrekker

Schematic drawing software

Can someone please suggest a freeware schematic drawing program? I only need something quite basic for digital logic cir...

4 comments posted 17yrs

posted by jedunkremove

4 comments posted 17yrs posted by jedunkremove

Digitech QC-1922 dual trace oscilloscope

Hi I have a two year old unit that has a problem with sync and it would be great if someone could help me with a circui...

5 comments posted 17yrs

posted by welch

5 comments posted 17yrs posted by welch

novice: op amp as voltage comparator

Hi, I'm using this (OPA134) http://www.jaycar.com.au/products_uploaded/ZL3972.pdf to determine whether the voltage from...

9 comments posted 17yrs

posted by fuzzymonkey87

9 comments posted 17yrs posted by fuzzymonkey87

Looking for STK043

Looking for STK043 in working order without much luck. Anyone knows where to buy it? Thanks, Tom

10 comments posted 17yrs

posted by tom

10 comments posted 17yrs posted by tom

recommend voltage doubler ic ?

hi, any body recommend a voltage doubler ic, i need to be able to convert 12 vdc to 24 vdc @ 100 ma . thanks. mark k

5 comments posted 17yrs

posted by krawczuk

5 comments posted 17yrs posted by krawczuk

Re: TV fuse

> > "Tron" > >> >> Buying a new set would not be an easy fix. >> >> Surely there would be a fuse near the power supply...

23 comments posted 17yrs

posted by tron

23 comments posted 17yrs posted by tron

Re: TV

> > "Tron" > >> >> Buying a new set would not be an easy fix. >> >> Surely there would be a fuse near the power supply...

0 comments posted 17yrs

posted by tron

0 comments posted 17yrs posted by tron

Zapps

It's a cold and slightly windy day in Brisbane so some static zapps are expected but I have had several very solid zaps...

2 comments posted 17yrs

posted by "atec 77"

2 comments posted 17yrs posted by "atec 77"

Re: Toaster Repair

> > Yesterday I spotted this sticker on a post (monorail?) at the end of > > the Pyrmont bridge (Sydney) : > > > > http...

0 comments posted 17yrs

posted by MrT

0 comments posted 17yrs posted by MrT