Dave & Sagan unbox a very special mailbag item!
Forum: http://www.eevblog.com/forum/blog/eevblog-750-special-mailbag!/
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https://www.youtube.com/watch?v=fKf_SIdCH1Q
A time lapse installation video of Dave's 3kW home solar power system using LG MonoX panels.
How to install a home rooftop solar power system.
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https://www.youtube.com/watch?v=fQAd7nposJQ
Repairing a Sega Toys Deathstar, err, Homestar Flux Planetarium
https://amzn.to/3BsaIH7
The designer Takayuki Ohira talking about the design: https://www.youtube.com/watch?v=e2zanTJ0Ihc
10 minutes of the Casio FX-91W spinning: https://www.youtube.com/watch?v=J0S5LvBFrFA
Forum: https://www.eevblog.com/forum/blog/eevblog-1456-sega-toys-homestar-planetarium-repair/
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#ElectronicsCreators #Repair #Planetarium
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https://www.youtube.com/watch?v=prQinQ4MWmU
Part 3 in the Precision Current Source series.
Dave breadboards a classic precision low current source circuit using the 10V REF102 voltage reference to generate accurate 1mA and 1uA currents.
Also some talk about the errors in a typical precision circuit like this.
Part 2: http://www.youtube.com/watch?v=O2ohz8DyJoQ
Part 1: http://www.youtube.com/watch?v=pXMhpEi_wPU
REF102: http://www.ti.com/lit/ds/sbvs022b/sbvs022b.pdf
App Note: http://www.ti.com/lit/an/sbva001/sbva001.pdf
OPA277: http://www.ti.com/lit/ds/symlink/opa4277.pdf
VishayPG VHP100: http://www.vishaypg.com/docs/63003/vhp100.pdf
Forum: http://www.eevblog.com/forum/blog/579-precision-current-source/
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https://www.youtube.com/watch?v=OYOYI_IPKGY
Inside the new Rigol 7000 Series oscilloscope with custom ASIC's.
Also a look at the bootloader code for potential hacks.
Forum: http://www.eevblog.com/forum/blog/eevblog-1124-rigol-7000-oscilloscope-teardown/
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https://www.youtube.com/watch?v=6AzXQ7sfYPU
Review of the new 18W USB-C TS80 temperature controlled portable soldering iron.
http://s.click.aliexpress.com/e/bDjVklFw
TLDR; Highly recommended, money well spent if you need a portable iron solution, but you need a QC3 battery pack.
Forum: https://www.eevblog.com/forum/blog/eevblog-1114-new-ts80-usb-soldering-iron-review/
#TS80
#Soldering
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https://www.youtube.com/watch?v=_Z9es-D9_8g
Part 2 of the power-up counter project, investigating the Sharp Memory LCD & custom LCD's + microcontroller (MSP430 + ST ARM + Microchip) low power design with supercaps, SMD ceramic batteries, and coin cells.
Part 1: https://www.youtube.com/watch?v=nTpE1Nw3Yy4
Forum: https://www.eevblog.com/forum/blog/eevblog-1242-memory-lcdsupercapslow-power-design/
#SuperCap #LCD #LowPowerDesign
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https://www.youtube.com/watch?v=XoHkE4xgaFA
If you thought Solar Rowadways was done and dusted in 2020, you were WRONG!
French road company Colas Wattway have found a new sucker to try their epicially failed Wattway solar panels, this time in Georgia in the United States as part of a government funded initiative through Curiosity Labs in Peachtree Corners Georgia to install the first Solar Roadways in the United States.
https://www.curiositylabptc.com/peachtree-corners-smart-city-and-the-ray-install-usas-first-road-surface-solar-panels-on-autonomous-vehicle-lane/
https://www.peachtreecornersga.gov/
Forum: https://www.eevblog.com/forum/blog/eevblog-1356-the-usa-finally-gets-solar-roadways!-lol!/
#Solar #Roadways #Debunk
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https://www.youtube.com/watch?v=gmYVyp_gB_o
Mailbag with special guest Sagan!
Forum: https://www.eevblog.com/forum/blog/eevblog-1229-mailbag/
SPOILERS:
TomTom XL GPS teardown
9:26 Casio RM-9850 graphing Calculator
18:15 40th Anniversary of the 6809 and a special demo board
https://gitlab.com/dfffffff/gcc6809
6809 gcc compiler
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https://www.youtube.com/watch?v=MwL3qgMNYLc