We found this circuit in a Popular Electronics of the 90s. Its purpose is to detect when it locks a pulse output, for example, a data link. The circuit can be used as a shield and the power supply is 12 V for the indicator step. Input can be TTL.
We found this circuit in a Popular Electronics of the 90s. Its purpose is to detect when it locks a pulse output, for example, a data link. The circuit can be used as a shield and the power supply is 12 V for the indicator step. Input can be TTL.
