We found this circuit in a 1980s American documentation. The operational amplifiers of the integrated circuit used can be common types in an experimental setup.
Found in a Popular Electronics from the 90s, this circuit can be used as an electrifier. T1 can be...
This type of circuit and with this integrated circuit appears several times on this website. The...
This circuit was obtained from a 90s Elektor Electronics f. The output current of each sector is 1...