Circuit Break - A MacroFab Podcast

MEP EP #170: Start Getting Crusty

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MEP EP #170: Start Getting Crusty

Parker

  • PinoTaur
    • MCP23S08
    • I/O Expanders Verse Shift Registers?
    • Wagon Tach Project
      • 3D printed the housing
      • Need to run the wire from the distributor to inside the cab
      • To knock down the distributor signal
        • In series diode to prevent negative flyback? voltage from affecting circuit
        • Resistor divider
        • Zener diode to clamp to 4.7V
        • H11L1M - Schmitt Trigger Opto

          • Stephen

          • MacroAmp Testing
            • Used a variac to bring the amp up to voltage
            • Found some of the resistances were too high
              • It can be difficult to determine what a transformer tap will produce - I chose to guesstimate and fix it later...it works
              • Higher gain when powered from the transformer. About 100x gain
              • Tested into a Power amp - Works
              • HUGE ISSUE: MICROPHONIC TUBES
              • Next steps - Get everything in the enclosure. Wire the output transformers

                • R.F.O.

                • Chip component gets heat out of tight spots without leaking electrons
                  • TT Electronics has introduced a surface-mount component designed exclusively to get heat out of tight spots.
                  • SMD thermal junctions that can be placed with a pick and place
                  • Can use creative thermal paths instead of more traditional “heat planes”
                  • Server maker Super Micro to ditch 'made-in-China' parts on spy fears
                    • Check out Episode 142 of the MEP with Misha and Church
                    • This a security move or just money due to tariffs?
                    • Was there something TO the Bloomberg article that caused this to happen behind the scenes?
                    • On better datasheets
                      • Suggested alternate reading: https://www.embeddedrelated.com/showarticle/809.php
                      • Manufacturers could provide a “legend” or “guide” for their family of datasheets
                      • Don't just photocopy your old datasheet and slap your name on top. Do just a little bit of effort and make a new datasheet. Also if you do photocopy anything AT LEAST DO IT STRAIGHT.

                        • Visit our Public Slack Channel and join the conversation in between episodes!

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                        Circuit Break - A MacroFab PodcastBy MacroFab, Inc.
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