Macrofab Engineering Podcast

MEP EP#224: The Normal ChaosStephen DC Heating and Thermal Testing A low voltage moderate current linear power supply 12.6V dc @ 0.55A 6.93W LM2940T-12.0 LDO TIP42 bootstrap transistor to share the load 12V @ 2A transformer supplies ~16.2vdc with 200mV ripple ~2W of heat to be handled Shooting for about 250mW in the regulator and the transistor then the rest will get dumped in some resistors PCB heatsinking Diptrace 4.0 is finally here! Snapping and aligning items Circles and arcs actually have a center now… Paste and Mask layers are finally visible Pad angles other than 0 and 90 are now available in the pattern editor One button for removing silkscreen from pads Progressive searching for components instead of the seizure it used to be Export options now can export all the manufacturing files as a single zip Teardrops! Parker Wagoneer Engine Work Timing cover Water pump Timing chain Distributor gear Distributor camshaft gear Harmonic Balancer All the gaskets Radiato