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June 7, 2018, Episode #123
- Stephen
- The uTracer 3
- A tube curve tracer that is very powerful.
- Some upgrades that are in the mix
- New interface for selecting socket connections – going to have 8 and 9 pin sockets with rotary switches for each pin
- Upgraded ground loop for measuring the grid current on triodes
- Integrated FTDI
- Transistor curve tracer (only tests the “positive” transistors PNP,N-Channel stuff)
- Lab Notebook
- SSPS – The entropy creator
- The uTracer 3
- Parker
- New Article: Key Parts of an Arduino: How to Integrate the Arduino Platform into your Product
- Reading temperature NTC thermistors
- Voltage divider method
- Wheatstone bridge circuit
- Dedicated IC like the MAX6682MUA
- Others ways?
- Are space ships and space suits rated for external positive pressure?
- Relevant Reddit Thread
- Engine Parker is working on
- RFO
- Saelig has a new programmable 128W Power Supply With 1mV/1mA Precision
- Output: 0 – 16 Volts / 0-8 Amps
- Resolution: 1 mV / 1 mA
- Low Ripple & Noise: <= 350 uVrms / 3 mVpp / <2 mArms
- Remote Voltage Sensing Capability
- $260
- Saelig has a new programmable 128W Power Supply With 1mV/1mA Precision
Visit our Slack Channel and join the conversation in between episodes and please review us, wherever you listen (PodcastAddict, iTunes). It helps this show stay visible and helps new listeners find us.
About the Hosts

Parker Dillmann
Parker is an Electrical Engineer with backgrounds in Embedded System Design and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. The following year he designed and produced an Atari 2600 video mod to allow the Atari to display a crisp, RF fuzz free picture on newer TVs. Over a thousand Atari video mods where produced by Parker from 2006 to 2011 and the mod is still made by other enthusiasts in the Atari community.
In 2006, Parker enrolled at The University of Texas at Austin as a Petroleum Engineer. After realizing electronics was his passion he switched majors in 2007 to Electrical and Computer Engineering. Following his previous background in making the Atari 2600 video mod, Parker decided to take more board layout classes and circuit design classes. Other areas of study include robotics, microcontroller theory and design, FPGA development with VHDL and Verilog, and image and signal processing with DSPs. In 2010, Parker won a Ti sponsored Launchpad programming and design contest that was held by the IEEE CS chapter at the University. Parker graduated with a BS in Electrical and Computer Engineering in the Spring of 2012.
In the Summer of 2012, Parker was hired on as an Electrical Engineer at Dynamic Perception to design and prototype new electronic products. Here, Parker learned about full product development cycles and honed his board layout skills. Seeing the difficulties in managing operations and FCC/CE compliance testing, Parker thought there had to be a better way for small electronic companies to get their product out in customer's hands.
Parker also runs the blog, longhornengineer.com, where he posts his personal projects, technical guides, and appnotes about board layout design and components.

Stephen Kraig
Stephen Kraig began his electronics career by building musical oriented circuits in 2003. Stephen is an avid guitar player and, in his down time, manufactures audio electronics including guitar amplifiers, pedals, and pro audio gear. Stephen graduated with a BS in Electrical Engineering from Texas A&M University.
Special thanks to whixr over at Tymkrs for the intro and outro!
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