9 V Battery Tester and Cell (CB15087E)

If the battery is good, the LED flashes. This simple tester uses an LM3909 integrated circuit. We found this configuration in an old documentation.

| Clique na imagem para ampliar |

MTD6508 Motor Driver - Microchip
September 2017 - Mouser Electronics is now offering Microchip MTD6508 engine drivers. These...
Siren 555 (CB10651E)
This circuit was obtained in a 1999 English magazine. We can easily assemble it with a BD136 or...
DC to DC Inverter with 555 (CB25547E)
A non-sinusoidal 120 V voltage can be obtained with this circuit found in the December 1992 Radio...