EEVblog #661 - Mailbag

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

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