Voltage Follower TL081 (CB15308E)

This conventional circuit is from Motorola's 1993 Linear Interface ICs. The power source must be symmetrical.

Sample and Hold LM3900 (CB14218E)
The circuit shown is suggested by National Semiconductor's Linear Applications Handbook. The base...
Telephone amplifier (CB8630E)
This circuit uses a pickup coil to take the signal from a telephone line without contacts. The circuit...
Opto and Strobe Interface (CB16037E)
In this circuit, the transistors are NPN for general use and the phototransistors can be replaced by...