The configuration shown allows to obtain a high voltage gain for FETs. FETs can be BF245 or MPF102. The circuit is from the 1977 National Semiconductor FET Databook.
Found in a 1960s Philips documentation, this circuit accepts inputs from 16 to 20 V. The...
The current drained by this circuit, from a 1976 documentation, is 3 mA and the cut-off frequency is...
Obtained in a 1969 Ferranti documentation, this circuit dissipates only 2.2 mW with 4.5 V. The...