hmm.. should i use 2n2222 and 2n2907..??
ill buy a DC motor maybe tommorow. 6v DC motor right??
Yes, try those transistors.
And look for a lower current motor, similar to the pololu one I linked to above. Stall current of around 800mA, etc.
i would like to try dis
i will just put this h-bridge in relay
hmm. but i want to reproduce it twice.. should i use dual timer? or just simply reproduce the RECEIVER and relay?
'ullo, you're back! Couple of points:
The h-bridge is not a drop-in replacement for the relay.
Regarding the h-bridge you've shown, you won't be able to drive the upper NPN transistors into saturation unless the h-bridge voltage is a couple of volts lower than the control voltage.
Saturation in h-bridge transistors is A Good Thing.
If you are still going to use a single supply for both control and motors, I can suggest other h-bridge configurations you can use. Also if you want to drive the motors from a higher voltage than the control voltage.
If you keep the 74HC14, you can use a couple of its inverters to drive the h-bridge, and use another inverter to make your oscillator, obviating (that's a good word, isn't it!) the need for the 555 chip.
P.S. Did you end up swapping out those high current motors?