Discussion in 'General Tech & Gadget Forums' started by leecavturbo, Jan 11, 2012.
need to build a electronic circuit (555 ?) to make a speaker give out a constant 10 khz tone.
I'll throw together a schematic for you tomorrow, as for actually making it, what do you plan on using? Pcb? Breadboard?
Just soldered in a mess hoping not many components
That's possible but I wouldent reccommend it given you'd be using a 16 pin (if I remember correctly) IC? May be consider investing in a breadboard, they're great bits of kit and you can never use it too much, simple to use once you get the hang of it too.
Also need a relay with delayed momentary action.
Was thinking 2 bog standard 555 timers?
1 555 gives the action after time and the other 555 cuts the power to timer 1 just after the first timers time? will i be able to get accurate action between the 2? i.e 5secs timer 1. 6 secs timer 2?
Separate project to 10khz
That looks about right bar one thing. The time constant (or delay) = Resistance x Capacitance, I don't see that anywhere :s
R1 and c1. ?
Or do you mean the values?
Are there companies that will make a pcb ready for soldering in components?
Can you get a chip with 2 555's in?
Just spotted them, ignore what I said, god I hate being ill lol.
As for pre made pcb's can't think of a company who make em unless you design it and send it to them, I still maintain that breadboard is the way to go. As for dual 555's on a single chip, google is your friend.
556 is an ic with 2 555 arrangements
Rings a bell, there you go.
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