DC BLOCKER+SOFT STARTER + EMF FILTER This is the assembled pcb with high quality components. This will block the DC components/offsets on main line and activate as a soft starter to control inrush current. Also it has a line filter stage to reduce EMF interference on the mains power line This is ground isolated unit output ground is not connected. Simple soft-start for the transformer works in very simple way.Two relay coils are driven by the CX3 capacitor reactance, sufficient time delay is provided by C6 capacitor. It is very important to use 24V DC coil relays with resistance 1,44kR.
Two LED's are informing when each relay is active. The amplifier can be switched ON/OFF with only 20mA so there is no need to use huge''hefty'' power switch anymore. During the start-up the mains current is limited with two 47R/5W resistors connected in parallel, the max current for 240VACmains is approx 4A. After a few seconds Relay2''kicks in'' and the current limiting resistors are clamped.On the board there is build in mains filter and DC-Blocker, both of the components should be placed in any amplifier anyway so I decided to''melt'' them on a single board. PLEASE BE CAUTIOUS WHEN WORKING ON MAINS VOLTAGE!! This item is in the category "Electronics\Home Audio Stereos, Components\Amplifier Parts & Components". The seller is "rfwaves2" and is located in this country: AU.