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MEP EP #170: Start Getting CrustyParker
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!
Show Notes
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!
Creators & Guests
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.