This negative bias circuit provides negative voltages from 3.5 to 6.5 V sources. The circuit was found in the April 1995 issue of Electronics Now magazine.
This circuit was found in an 80's Electronic Design. The frequency depends on the crystal and the...
Based on an OTA LM3600 operational amplifier, this circuit was found in the July 1988 issue of...
This 80's General Electric circuit is guarded by the noise-guard for operating current. The...