We found this circuit in an old documentation. It can be elaborated based on modern components. The double transistor can be replaced by a matched pair.
Figure 1 shows a low-pass filter using a 741 operational amplifier but other ICs can be used. The...
This radiation sensor circuit was found in the January 1994 issue of Electronics Now magazine. It is...
This amplifier is from a 1990s Linear Technology component manual. The circuit requires...