Tips
Tips
Reducing Radio Frequency Interference
Modification Reducing RF interference when too close to a radio station tower, or other source emitting RF noise. Difficulty Level 4 – Moderate/Hard – internal connection or component addition. Components Required Choke coil: 180 µH inductance. Capacitors: 0.01 µfd, 25V 0.02 µfd, 25V AC plug adaptor: 3-prong to… Read More
LEF Power Surge Prevention
Summary Modern intercom systems, with solid state circuitry, are much more efficient and compact than older systems with relays, coils, and vacuum tubes. Unfortunately, they are also more susceptible to malfunction or failure due to transient overvoltage, such as lightning and AC power surges. Lightning Lightning overvoltage is caused… Read More
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