AC Power filter and phone line filter (homemade circuit breaker)

[ionela]

http://dev.emcelettronica.com/ac-power-filter-and-phone-line-filter-homemade-circuit-breaker

[ionela]

AC-Safe can protect or filter the phone line and protect or filter the ac power supply (mains), from lightnings (or surges) and extra currents. Toss in a few modifications, and also noise coming from power lines can be easily filtered.