Also, I've started another project, a switch triggered by an audio signal rather than a loud clap.
I have found this schematic online
http://www.circuitdiagram.org/audio-act ... witch.html
Again, it requires a relay but like almost all online schemes it doesn't exactly show where each wire goes into the relay. It has 5 pins, I have tried some configurations but can't get it to work. Please could you help me with the relay part? I guess many people find it obvious but I just can't figure this out. Why don't they draw it in?
Here are some pictures of the new project
http://imageshack.com/a/img910/9890/f3pFMJ.jpg
http://imageshack.com/a/img905/3523/xooXR4.jpg
http://imageshack.com/a/img910/2783/f4Yagr.jpg
http://imageshack.com/a/img633/4807/pMNwQb.jpg
Relayer wrote:OK, supplement done.
Click link below:
http://i.imgur.com/RWiu1Jk.jpg
The relay you'll be able to get from Jaycar, the code is: SY-4058.
Once again, ALL the transistors are shown with their bottoms facing upwards.
Also, you are not restricted to using a 6 volt supply. The circuit can easily handle 9 or 12 volts. You may have to increase the value of R5 from 4k7 to 10k, and you'll need to get a 9 volt or 12 volt relay to suit, but the rest of the circuit will be fine. No further changes would be needed.
Jaycar has a reasonable range of 12 volt relays, but unfortunately no 9 volt units. Though 9 volts should be able to work the 12 volt relays with minimal chatter, but worst case, a 9.1V zener in series with a 1k resistor between the Collector and Emitter of Q3 would remedy this.
Once again, please let me know how you get on.
Good luck!!!
Regards,
Relayer