This circuit was found in the 1977 National Semiconductor FET Databook. The FET can be the BF245 and the bipolar transistor a BC558. The supply voltage must be between 5 and 15 V. The circuit amplifies signals up to a few megahertz.

This circuit was found in the 1977 National Semiconductor FET Databook. The FET can be the BF245 and the bipolar transistor a BC558. The supply voltage must be between 5 and 15 V. The circuit amplifies signals up to a few megahertz.