Ameba Transmitter (CB21873E)

We found this small FM transmitter in an Australian publication from 1991. The 3-transistor circuit has a range on the order of 400 meters.

| Clique na imagem para ampliar |

Non Inverting Amplifier (CB6437E)
This non-inverting AC amplifier was found on a Popular Electronics. The setting applies to any...
3 to 5 V inverter (CB9157E)
This circuit supplies 5 V from two AA batteries. The output current is 4 mA, resulting in an 11 mA...
5 V x 4A Power SUpply (CB12968E)
With this regulator we can have currents of up to 4 amps with 5V at the output. The transistor can be...