Institute Newton C. Braga

Circuit Bench

Two frequency oscillator (CB8059E)
Found elsewhere in this section, but from other sources, this circuit is from a 1964 Electronic...
Transistor Radio TR 182 (CB18374E)
We found the circuit of this Japanese transistorized commercial receiver in a documentation from...
TV Timer (CB17489E)
This circuit is from a 1986 publication. Its purpose is to automatically turn off a television after a...