7400-series on Bald Engineerhttps://www.baldengineer.com/tag/7400-seriesRecent content in 7400-series on Bald EngineerHugoen-USFri, 01 Apr 2022 22:10:55 +0000Essential Logic Families | Workbench Wednesdays #35https://www.baldengineer.com/essential-logic-families-workbench-wednesdays-35.htmlTue, 02 Mar 2021 23:07:00 +0000https://www.baldengineer.com/?p=8328Did you know that TTL chips do not output 5 volts? 74LS, 74HC, and 74HCT all have different input and output thresholds. Switching between logic families can be difficult if you are not careful. In this video, learn how different 7400-series logic families compare with input threshold, output voltage, frequency, rise time, and propagation delay. Check out this TI Application Guide for a great resource on logic families.

Essential Logic Families | Workbench Wednesdays #35

What Active Components Do You Need? | Workbench Wednesday #29https://www.baldengineer.com/what-active-components-do-you-need-workbench-wednesday-29.htmlThu, 08 Oct 2020 21:43:00 +0000https://www.baldengineer.com/?p=8315Active components like transistors, BJTs, MOSFETs, and integrated circuits (ICs) make it possible to control circuits. This video explains the must-have NPN and PNP BJTs. For MOSFETs there are a couple of N-Channels and P-Channels to consider. Basic ICs include some digital logic stuff from the 7400-family as well as the venerable 555-timer to have on-hand. We did not forget Op-Amps either. Spoiler: We do not recommend the ua741!

What Active Components Do You Need? | Workbench Wednesday #29

Instrument Basics: Logic Probe | Workbench Wednesdays #27https://www.baldengineer.com/instrument-basics-logic-probe-workbench-wednesdays-27.htmlThu, 13 Aug 2020 21:36:00 +0000https://www.baldengineer.com/?p=8309Logic probes are great for debugging 7400 series logic chips and digital circuits. In this video, James makes a counter circuit and debugs each stage as he builds, with a Logic Probe. If you are wondering, “do I need a logic probe” this video shows how one can be used and even answers when you should consider buying one.

Instrument Basics: Logic Probe | Workbench Wednesdays #27