This 80's General Electric circuit is guarded by the noise-guard for operating current. The circuit has an input sensitivity of 3 pA. The font must be symmetrical.
This circuit was found in the March 1994 issue of Electronics Now magazine. The circuit uses a...
Circuits similar to this appear elsewhere in this section. The transistors can be BC549 (low...
This VFO circuit generates signals from 2 Hz to 50 Hz. We found it in Popular Electronics from...