Yes.Electro-Ghost said:and instead of .22 uf can i use .47
ty will a 8 ohm 1 and 1/8 min mini speaker work
Yes.Electro-Ghost said:and for the 470 uf connected to the switch can i just connect 2 220 uf non polarized
No. All polarised means is you must connect the capacitor the right way round in the circuit, non-polarised capacitors can be connected either way round.Electro-Ghost said:and does it really matter if all those caps are polarized
I'm not sure if you think you need an earth ground. You don't. The ground symbol is just a way of indicating the common node in the circuit. You just need to connect all of them together with a plane or with heavy bus wire (as short as possible), and connect the negative terminal of the battery to that same node.Electro-Ghost said:if u connect all the ground symbols the the negative supply. couldnt you then just run one main wire from the negative to a ground in order to ground them all?
Less than half a watt into his dinky little speaker won't be any louder than his actual voice in a room. If he used a horn type of speaker as is used in a real megaphone then it will be loud enough to deafen someone in the same room.HiTech said:I have to ask what you plan to use that "mini-megaphone" for? Talking to the person who's seated in the same room with you?