EEVblog #680 - Mailbag

Mailbag Monday Flux Capacitor T-Shirts: http://teespring.com/stores/eevblog How NOT to blow up your oscilloscope (Isolation & Grounding): https://www.youtube.com/watch?v=xaELqAo4kkQ How a Microwave Magnatron Works PCB Holder Magazine Memories Memory Stacks Isolated USB-RS232 Interface LGB Model Train Controller & Decoder Caterpillar Dump Truck Controller 2114 SRAM Memory: http://www.princeton.edu/~mae412/HANDOUTS/Datasheets/2114.pdf Forum: http://www.eevblog.com/forum/blog/eevblog-680-mailbag/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog 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/