This amplifier for electrometer can work with currents of 0.1 pA in a band of 1 Hz. The circuit is from NASA in a publication of the 60s. Transistors are general purpose types.
The New Microchip development board is targeted to designers who work with 16- and 32-bit PICs....
The circuit shown was found in the February 1994 issue of Electronics Now magazine. The circuit...
The circuit presented is suggested by Mullard (Philips) in an old manual. The circuit uses a...