AD to PC Converter (CB7455E)

Found in a Popular Electronics from the 90's, this circuit makes use of an integrated from the uncommon era today. The circuit serves as a reference.

| Clique na imagem para ampliar |

Negative Regulator Power Supply (CB13065E)
In the same way that we can regulate the voltage in the positive branch of the circuit, we can...
Visible optical link for RS232 (CB21602E)
Based on the MC1488 or MC1489 operational amplifiers, this circuit has a 5000V isolation driving a...
3-Transistor Radio (CB21641E)
Found in the July 1968 Supertena Bulletin of a Popular Electronics, this receiver makes use of the...