Reply to thread

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message: <blockquote data-quote="ludo" data-source="post: 318450" data-attributes="member: 691">Couple of things there: 1) The output inductor should have the 2.2 Ohm resistor in parallel to it as in the schematic. Without that 2.2 Ohm it functions more like a destabilising element :nono:2) We usually try to keep the wires from the transformer to the diode bridge and also from that bridge to the caps, as short as possible. There are seriously large current pulses in those wires, causing voltage drops across the wire resistance. Due to these pulses, voltage drops across those wires are much more of an issue than voltage drops across the wires from the caps to the amp, or voltage drops to the speakers for instance.3) The extra caps on stripboard are a good idea, but remember that the tracks on the stripboard are not only thin, but full of holes too. So they are not particularly good conductors if compared to the heavy gauge wire you are using for the power supply. The tracks might even burn off at some point. It could be worth while to etch a small PCB for the extra caps, with some very wide tracks for the current to run in. Let me know diameter and pin spacing of the caps and I'll draw out a layout and mail the .pdf to you.</blockquote>