Circuit Break - A MacroFab Podcast

Is "I'm an Engineer" a valid defense?Parker

PinoTaur Update

12V master voltage input
Switching psus for the voltage rails
ATSAMD21G18A Breakout Board

32.768KHZ is the external crystal?

Lead free Smart LEDS?!

Direct from APA Electronic
APA-102C-5050 256
APA-104-260-5050

Stephen

Macroamp Update

Tested preamp board

~42x gain which is much too high
Power supply resistance is way too high at 2k

Did not account for extra current draw from buffer Jfets

J111 Jfet was bad out of the box - Have replaced with a BJT
So far very low noise
Riaa input filter still to be tested however it all works

Tested Shielded cable footprint from MEP EP 155: Void Copper Donuts

Was a Success!

R.F.O.

Hack my House: UL Certification and Turning the lights on with an ESP8266

What is the legality of IOT and connecting them to Mains?

Component Shelf Life: How To Use All That Old Junk

How to know when your parts are bad?
How old is too old?
Surplus Stores

EU bans lead solder for real this time

Lead has been newly classified by the EU as toxic to reproduction as of March 201
This means it can no longer be sold to the general public, only to commercial users
The transitional period ended Feb 28, 2019

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

Show Notes

Is "I'm an Engineer" a valid defense?

Parker

  • PinoTaur Update
    • 12V master voltage input
    • Switching psus for the voltage rails
    • ATSAMD21G18A Breakout Board
      • 32.768KHZ is the external crystal?
  • Lead free Smart LEDS?!
    • Direct from APA Electronic
    • APA-102C-5050 256
    • APA-104-260-5050

Stephen

  • Macroamp Update
    • Tested preamp board
      • ~42x gain which is much too high
      • Power supply resistance is way too high at 2k
        • Did not account for extra current draw from buffer Jfets
      • J111 Jfet was bad out of the box - Have replaced with a BJT
      • So far very low noise
      • Riaa input filter still to be tested however it all works
  • Tested Shielded cable footprint from MEP EP 155: Void Copper Donuts
    • Was a Success!

R.F.O.

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

Creators & Guests

Host
Parker Dillmann
A Founder @MacroFab.Builds Electronics, Cars, & Jeeps.
Host
Stephen Kraig
EE
Producer
Chris Martin

What is Circuit Break - A MacroFab Podcast?

Dive into the electrifying world of electrical engineering with Circuit Break, a MacroFab podcast hosted by Parker Dillmann and Stephen Kraig. This dynamic duo, armed with practical experience and a palpable passion for tech, explores the latest innovations, industry news, and practical challenges in the field. From DIY project hurdles to deep dives with industry experts, Parker and Stephen's real-world insights provide an engaging learning experience that bridges theory and practice for engineers at any stage of their career.

Whether you're a student eager to grasp what the job market seeks, or an engineer keen to stay ahead in the fast-paced tech world, Circuit Break is your go-to. The hosts, alongside a vibrant community of engineers, makers, and leaders, dissect product evolutions, demystify the journey of tech from lab to market, and reverse engineer the processes behind groundbreaking advancements. Their candid discussions not only enlighten but also inspire listeners to explore the limitless possibilities within electrical engineering.

Presented by MacroFab, a leader in electronics manufacturing services, Circuit Break connects listeners directly to the forefront of PCB design, assembly, and innovation. MacroFab's platform exemplifies the seamless integration of design and manufacturing, catering to a broad audience from hobbyists to professionals.

About the hosts: Parker, an expert in Embedded System Design and DSP, and Stephen, an aficionado of audio electronics and brewing tech, bring a wealth of knowledge and a unique perspective to the show. Their backgrounds in engineering and hands-on projects make each episode a blend of expertise, enthusiasm, and practical advice.

Join the conversation and community at our online engineering forum, where we delve deeper into each episode's content, gather your feedback, and explore the topics you're curious about. Subscribe to Circuit Break on your favorite podcast platform and become part of our journey through the fascinating world of electrical engineering.