Switching power supply (CB21158E)

This switching power supply was found in an Electronic Design from the 90s. The components are from the period.

| Clique na imagem para ampliar |

Temperature compensator for VFO (CB8096E)
This circuit was found in a Popular Electronics from the 90s. The circuit has temperature...
Transmitter via power network (CB9574E)
Found in old American documentation, this receiver transmits signals via the power grid. We can...
Precision High Voltage Regulator (CB5878E)
This circuit is from the LM317's own manual obtained from an old documentation. The IC should be...