Making a simple 555 Based Logic Probe

I'm building a simple 555 timer based logic probe from spare parts I had laying around. // Kindly sponsored by my favorite PCB manufacturer PCBWay! https://www.pcbway.com/ Original schematics from ETI (November 1979): https://schematicsforfree.com/files/Radio%20%26%20Communications/Test%20Equipment/RF%20Monitor%20Meter.pdf Updated version on Instructables: https://www.instructables.com/Build-Your-Own-Logic-Probe-on-the-Cheap-Using-a-55/ I used an ILC555 chip instead of an original NE555 and also replaced the 1N914 diodes with 1N4148s. TIME STAMPS: 0:00 Introduction 1:31 The Circuit 7:00 Sponsor Message 7:36 Building the Circuit 17:01 Preparing the Enclosure 22:22 Connecting to the World 27:03 Testing the Probe 30:44 Final Assembly 32:07 Real World Testing 35:40 Thank you & Good night ----------------------------------------­------ MUSIC by FOCUS 10 https://focus10music.bandcamp.com EQUIPMENT AND TOOLS I USE: https://kit.co/janbeta * MERCHANDISE: https://janbeta.creator-spring.com MASTODON: https://chaos.social/@janbeta PATREON: https://patreon.com/janbeta KO-FI: https://ko-fi.com/janbeta WEBSITE: https://www.janbeta.net TWITCH: https://www.twitch.tv/thejanbeta YT CHANNEL MEMBERSHIP: https://www.youtube.com/channel/UCftUpOO4h9EgH0eDOZtjzcA/join Thanks for watching! This video was sponsored by @PCBWay . * Stuff marked with "*" contains affiliate links. You don't pay anything extra and I get a little commission from everything you buy through the links (even if you buy something different there). #JanBeta #LogicProbe #DIYLabEquipment #LogicTester #NE555 #555Timer #Circuit #Schematics #DIY #Homemade #Electronics #Tinkering #PCBWay