High impedance stage (CB20564E)

This high input impedance amplifier stage was found in a 1963 documentation. The transistor germanium of the time.

Recording Head Amplifier (CB26167E)
This circuit was found in the 1992 Radio Electronics Handbook. It is used to test VCR recording heads....
TLV333 TLV2333 and TLV4333 Operational Amplifiers with Zero Drift CMOS COM1149 (COM027E)
June 2016 - Mouser is making available a new series of operational amplifiers from Texas...
Low voltage drop regulator (CB21166E)
This circuit was obtained from an old Electronic Design. The components are from the period but...