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  • jasoneaton8

Hand Made - Power & Filters

This is the second video in a series of creating a 45 mono block amplifier. Look at earlier posts for the first video of the chassis assembly. First step is to seal up the extra wires we do not need from the power transformer. Then the heater wires are setup for the rectifier tube and the 300v B+ voltage to be converted into DC. Heater wires are also brought to the preamp tube on the other side of the amplifier chassis. The filter caps are added, which will smooth out the B+ voltage supply coming from the rectifier tube. A dropping resistor is added to bring the B+ voltage up to the preamp tube. Next the output transformer is wired to B+ voltage and the 0v ground reference. Finally the choke is added which further drops the B+ voltage.



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