niconiconi on Nostr: Some electronics fun facts: Littelfuse started in 1927 and their first product was a ...

Some electronics fun facts: Littelfuse started in 1927 and their first product was a milliamp fuse for protecting fragile milliamp meters. During World War 2, engineers from MIT Rad Lab and elsewhere found they could abuse them to make a popular type of RF/microwave power sensor - the forerunner of all later thermistor-based RF sensors that are still in use today. Modern sensors are fragile enough (no RF career is complete without a sensor burnout), but those are more so as they're literally fuses, and already DC-biased to the point of almost burning out. Someone should give this WW2 design a try again with modern SMD fuses. #electronics