I need a horn/siren for my bicycle. I built the circuit in the TTL Cookbook. It works but it is not loud enough for a bicycle. What is the best power transistor to use for this circuit? I'm not sure how much power I need, maybe 10 watts. I have some tiny 10 watt speakers.
My plans is to use a Green button to turn on the 555 time on the right for Horn only. The Red button will turn on both 555 timers for a siren. I think a diode between the 2 timers will block voltage to the first timer when the green button is pushed. What is a good choice for the diode? I have a 100 pack of 1N4007 diodes.
A 12vdc rechargable battery pack will probably work good for this.
**broken link removed**
My plans is to use a Green button to turn on the 555 time on the right for Horn only. The Red button will turn on both 555 timers for a siren. I think a diode between the 2 timers will block voltage to the first timer when the green button is pushed. What is a good choice for the diode? I have a 100 pack of 1N4007 diodes.
A 12vdc rechargable battery pack will probably work good for this.
**broken link removed**
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