This circuit is from a manual of FETs of 1977. The FET can be the BF245 or MPF102 and the relay is of reed type for 1 mA. The circuit should not be powered by a transformerless source.
![](/images/sampledata/cb/cb1274e_0001.gif)
This circuit is from a manual of FETs of 1977. The FET can be the BF245 or MPF102 and the relay is of reed type for 1 mA. The circuit should not be powered by a transformerless source.