This input circuit for meters, which can also be used as a shield, is intended for operation with very low frequency signals. The power supply must be symmetrical.
This circuit is from a 1956 Sylvania publication. The transistor used is germanium and the old...
180 degrees out of phase signals are produced by this low frequency oscillator, using two 2...
This oscillator circuit with the TLV2474 was obtained from a Texas Instruments Operational Amplifier...