x10 frequency multiplier (CB21078E)

Found in American documentation from the 1990s, this TTL circuit operates at frequencies typically up to 100 kHz. Input signals must be rectangular.

| Clique na imagem para ampliar |

Temperature sensor 0 to 50º C degrees (CB10172E)
This circuit uses a transistor as a sensor and operates in the range of 0 to 50º C. We found it in...
Band-Pass Filter (CB14921E)
This circuit was found in a Poptronics of the 90's. The components can be changed to the desired...
Reverse polarity protection circuit (CB21582E)
In the figure we have an interesting protection bridge against power polarity inversion of a...