Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://www.pcbway.com/ In this video we take a look at some spiffy AA/AAA sized Lithium rechargeable batteries. Modern rechargeable lithium power for vintage gear without any modifications. I have been testing these cells for more than a year now and am pleased with how they perform. It was time to be a little more scientific though and do some actual tests to see how they perform compared to alkaline cells. Join us for the results. Timeline: 00:00 – Welcome 01:14 – Introduction to Lithium AA/AAA cells 06:22 – Testing 10:14 – Test results 12:49 – Differences in battery chemistry 14:05 – Wrap up. Thanks! Please consider clicking on the Subscribe button below and then click the bell icon. That way you will be notified when I post a new video. Thanks! Help support Hey Birt! https://www.heybirt.com - merch https://www.paypal.me/HeyBirt https://www.patreon.com/heybirt https://www.subscribestar.com/hey-birt Hey Birt! On Social Media! Facebook: Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Links Tenavolt AA cells: https://amzn.to/3yeOffI Tenavolt AAA cells: https://amzn.to/3kOqLLo Amazon Associated Links Tools: Fiberglass pen: https://amzn.to/3pWRzIk Fiberglass pen refills: https://amzn.to/3RgqGdQ OWDEN Hollow punch set: https://amzn.to/3PXzTXW Battery Spot Welder: https://amzn.to/3QMaG3T Hotplate: https://amzn.to/3rxOtLU Spudger set I use: https://amzn.to/3z19pM7 Heat mats: https://amzn.to/3boKDwl Amazon Associated Links Chemicals: 303 Aerospace Protectant: https://amzn.to/3BxRa5Y CiaKot: https://amzn.to/3CvVKiY Overcaot Pen: https://amzn.to/3s439Bt Novus Plastic Polish: https://amzn.to/2VwtFaV Electronics / PCB cleaner: https://amzn.to/3ORx62D Citric Acid: https://amzn.to/3krkgdt Amazon Associated Links Parts / Supplies: Foam sheet, 1mm: https://amzn.to/37CfTtt Uxcell shrink wrap: https://amzn.to/3boKJEd NiMh tabbed Sun-C: https://amzn.to/3nHCbxL NiMh tabbed AA: https://amzn.to/3OMjBkW uxCell strain reliefs: https://amzn.to/3nJ5AaP 3M Double sided tape: https://amzn.to/3rYCxBX Noctua 80mm NF-A8 FLX fan: https://amzn.to/3ASVhsJ Credits Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8 ... https://www.youtube.com/watch?v=hzYknX2GFBU

Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://www.pcbway.com/ In this video we kick off a series covering the restoration of a TRS-80 Model 4P. The Model 4P is a smaller, portable version of the Model 4 which was the last of the classic TRS-80 computers. We’ll start by tearing the unit down, calling an exterminator, replacing the power supply and applying power to this beauty for the first time in years. In the next video we’ll clean up the floppy drives and cover a few ways to make a bootable floppy from an image. Join us and see if we can bring this 4P back to life. Timeline: 00:00 – Welcome 01:39 – Teardown, extermination 12:20 – The truth about CRT high voltage danger 16:53 – Pre power up test, new power supply, power up 23:10 – Built in RAM test 28:53 – Wrap up. Thanks! Please consider clicking on the Subscribe button below and then click the bell icon. That way you will be notified when I post a new video. Thanks! Help support Hey Birt! https://www.heybirt.com - merch https://www.paypal.me/HeyBirt https://www.patreon.com/heybirt https://www.subscribestar.com/hey-birt Hey Birt! On Social Media! Facebook: Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Links TRS-80 Model 4P Service Manual: https://archive.org/details/TRS80Model4PServiceManual Truth about CRT High Voltage: https://lowendmac.com/2007/the-truth-about-crts-and-shock-danger/ New TRS-80 power supplies: https://plaidvest.com/newsoft/#mod4ppower Amazon Associated Links Tools: Battery Spot Welder: https://amzn.to/3QMaG3T Hotplate: https://amzn.to/3rxOtLU Spudger set I use: https://amzn.to/3z19pM7 Heat mats: https://amzn.to/3boKDwl Amazon Associated Links Chemicals: CiaKot: https://amzn.to/3CvVKiY Overcaot Pen: https://amzn.to/3s439Bt Novus Plastic Polish: https://amzn.to/2VwtFaV Electronics / PCB cleaner: https://amzn.to/3ORx62D Citric Acid: https://amzn.to/3krkgdt Amazon Associated Links Parts / Supplies: Foam sheet, 1mm: https://amzn.to/37CfTtt Uxcell shrink wrap: https://amzn.to/3boKJEd NiMh tabbed Sun-C: https://amzn.to/3nHCbxL NiMh tabbed AA: https://amzn.to/3OMjBkW uxCell strain reliefs: https://amzn.to/3nJ5AaP 3M Double sided tape: https://amzn.to/3rYCxBX Credits Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8 ... https://www.youtube.com/watch?v=zD-V93SVtTA