Bipolar Pulse Counter (CB6616E)

Found in an Electronic Design, this circuit makes use of general-purpose bipolar transistors. The circuit can be adapted to operate at lower voltages

| Clique na imagem para ampliar |

LED Constant Current Source (CB12062E)
This circuit provides a constant current of 1 mA, stabilized by an LED, which can be equivalent to that...
3 transistor receiver (CB20578E)
This receiver for the mid-wave band was found in a documentation from the 60's. The transistors are made...
Positive to negative CMOS converter (CB8854E)
This circuit converts a positive CMOS supply voltage to a negative one. We found it in a 90s...