https://stream.echo6.co/videos/watch/8343d062-7507-4af0-b8db-7ffb9c3d8d62 Mailbag Monday Negative Feedback T-Shirts: NOTE: Black shirt coming shortly, bug in Teespring site... http://teespring.com/negativefeedbackAsh 555 Timer: http://teespring.com/555timer-grey3 Warranty VOID: http://teespring.com/warrantyvoid2 Forum: http://www.eevblog.com/forum/blog/eevblog-661-mailbag/ Spoliers & Links: Programmable Constant Current Dummy Load: http://www.instructables.com/id/Arduino-Programmable-Constant-Current-Power-Resist/ Geppetto Electronics: https://www.tindie.com/stores/nsayer/ SMD Prototype Board: http://snikrepmada.com/projects/ The RoBoard Robot Development Board: https://www.tindie.com/products/PAMelectronics/the-roboard/ LED Strip Driver Board: http://blog.spitzenpfeil.org/wordpress/projects/ https://www.tindie.com/stores/madworm Conrad Retro Radio Kits: http://www.conrad.com/ce/en/overview/2420100/Retro-Kits Evoke Flow WIFi Radio OLED Display Repair MiniDSO Pocket Oscilloscope (a.k.a Seed Studio DSO Quad) http://minidso.com Pi Power Raspberry Pit power adapter: https://www.tindie.com/products/nsayer/pi-power/ L293D H-Bridge Motor driver chip: http://www.ti.com/lit/ds/symlink/l293d.pdf MOSFET: http://www.aosmd.com/pdfs/datasheet/ao3400.pdf MCP1804 LDO: http://www.microchip.com/wwwproducts/Devices.aspx?product=MCP1804 Silicate rock used in solar cell manufacture EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 EEVblog Amazon Store (Dave gets a cut): http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/ Wed, 10 Jun 2026 06:58:13 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/8343d062-7507-4af0-b8db-7ffb9c3d8d62 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.