This circuit works as both an injector and a signal follower. We found it in the May 1994 issue of Electronics Now. The Z1 headphone must be high impedance.
Suggested by a 90s Electronic Design, this circuit drains only 0.25 mA from its source. Listening...
The crystal frequency of this circuit found in an American documentation is limited only by the...
This current sensor employs the Texas Instruments LMV358A low voltage operational amplifier. This...