Uploaded February 2021 | Updated September 2026, 2 weeks ago

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We celebrate our 300th video and look at some of our lifetime viewer stats. Opening some viewer mail. Oscilloscope series update. Big update on our 300B Single Ended Triode Amplifier Build. And a very cool Tech Tip on tube characteristics and relationships. Had a lot of fun making this one!

Links:
Tube Characteristics Cheat Sheet
blueglowelectronics.wordpress.com/diagrams

Inside the Vacuum Tube Book PDF
worldradiohistory.com/BOOKSHELF-ARH/Rider-Books/Inside-the-Vacuum-Tube-Rider-1945.pdf?fbclid=IwAR3-ZotQoEbvTxAesrRbil4_O0xU80sWnIQyfazE8J145L87L02uqdjj4Ak