Instrumentation amplifier with variable gain (CB20986E)

Found in Popular Electronics from the 90s, this amplifier uses components from the time. The circuit has differential inputs.

| Clique na imagem para ampliar |

CMOS 555 With Variable Duty Cicle (CIR088E)
The time the output is high (1) of a TLCSSB in the astable configuration depends on Ra and C. The...
Battery Charger (CB16778E)
The adjustment of the maximum load voltage is made in the trimpot. The circuit is from 1994...
NOR Crossed Gates (CB21500E)
This circuit from a 1967 documentation generates 2.5 Hz signals depending on the capacitors used,...