Time Base (CB25100E)

This time base circuit was found in the January 1988 issue of Radio Electronics magazine. The output signals are 1 Hz and 10 Hz TTL.

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Current shunt amplifier (CB6791E)
Found in a Maxim documentation from the 1990s, this current-sensing amplifier uses components from the...
Integrated Intercom (CB16336E)
We found this circuit in a 1982 documentation. An intercom to be good must be sensitive and have...
Voltage Controlled Gain Amplifier (CB4900E)
This circuit is from a 1980s documentation, but the configuration can be applied to most modern...