This detector with ultra-low deviation was found in an American documentation from the 90s. Operational amplifiers are from that time. The power supply must be symmetrical.
This circuit for voltages up to about 20 V was found in a 90s Popular Electronics. The LED can be...
January 2017 – The bq35100 integrated circuit, a charge monitor and EOS for non-rechargeable...
Found in a 1980s telecommunications documentation, the circuit presented acts as a product...