I'm new to these groups, so please alert me if I break any rules which I don't know about. I generally lurk longer, but I'm quite desperate for answers.
I have successfuly built the intercom from this web page:seems to work quite well, however I do have some questions. At the moment I'm only using fairly short, normal, thin wires to connect the circuits. What wire would be the best to use - will interference be a problem? what length of the current type of wire could I use?
Also, I'm not sure which resistor I might change with a variable resistor to allow the adjustment of volume, or if that's even possible?
Finally - I don't really understand how the whole circuit works. I've modelled the circuit on a simulation program called Crocodile Clips, so I understand some of it, but for instance I don't understand what the job of the capacitors is. If anyone would be willing to take some time to explain/point me in the right direction I would be very grateful.
Please don't feel you have to answer all my questions! but any answers you can give would be greatly appreciated.
Thankyou Alex Bradbury