What's inside the a 1987 vintage Sharp X68000 personal computer / gaming system from Japan?
Sold exclusively in Japan from 1987 to 1993 this 10MHz 68000 based boasted graphics capability superior to the Amiga and Atari ST. The powerful graphics enabled pixel-perfect ports of clasic games arcade games, and the machine was highly sought after by gamers. Running a custom operating system called Human68K, it even had 3D goggle support.
Teardown photos: http://www.eevblog.com/2015/05/20/eevblog-746-sharp-x68000-retro-computer-teardown/
Forum: http://www.eevblog.com/forum/blog/eevblog-746-sharp-x68000-retro-computer-teardown/msg676909/#msg676909
Datasheets:
http://bitsavers.trailing-edge.com/pdf/sharp/_dataBooks/1990_Sharp_Microcomputers_Data_Book.pdf
http://www.ionpool.net/arcade/gottlieb/technical/datasheets/YM2151_datasheet.pdf
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https://www.youtube.com/watch?v=W40qGkp-mEU
Dave's knee teardown video with 30 minutes of commentary:
https://www.youtube.com/watch?v=tw5hkZ8ZAz8
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
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https://www.youtube.com/watch?v=33ETKOr7Yf8
Dave shows you how to get automatic email notifications when your favourite Youtube channel releases a new video.
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):
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https://www.youtube.com/watch?v=bEcP3kBJIpU
Gavin Smith a.k.a The Mechatronics Guy always has interesting stuff in his car boot. Here he shows off his TurtleBot and CineMoco camera dolly system.
http://sites.google.com/site/mechatronicsguy
http://turtlebot.com/
http://store.cinetics.com/bundles
Forum Topic: http://www.eevblog.com/forum/blog/429-turtlebot/
EEVblog Main Web Site:
http://www.eevblog.com
EEVblog Amazon Store:
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https://www.youtube.com/watch?v=tJtJOS0UWSU
Dave repairs his Rigol DP832 Lab Power Supply.
Why did it need repairing? That's the FAIL part Rigol might want to look into...
UPDATE: I have an old revision board. Newer ones contain a much beefier MOSFET:
http://www.eevblog.com/forum/blog/eevblog-861-rigol-dp832-psu-fail-repair/msg897765/#msg897765
The previous DP832 Design FAIL: https://www.youtube.com/watch?v=y-KkP...
Datasheet for pass transistor: http://web2.cet-mos.com/PDF/CET-MOS/TO-220-263-N/CET_CEP80N15(F).PDF
Forum: http://www.eevblog.com/forum/blog/eev...
EEVblog Main Web Site: http://www.eevblog.com
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https://www.youtube.com/watch?v=VIZNmHznYiE
Dave talks with Karsten Becker from PT Scientists about the electronics on board the Audi Quattro Lunar Rover, and space electronics in general.
Radiation, thermal design, camera systems, power supplies and more.
Forum: http://www.eevblog.com/forum/blog/eevblog-896-space-electronics/
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
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https://www.youtube.com/watch?v=nJLOZDPTp3I
Whist on the lab headlamp tour Dave found an old Commander phone system, and naturally couldn't resist doing an impromptu teardown!
http://www.amazon.com/gp/product/B004VKR760/ref=as_li_ss_tl?ie=UTF8&tag=ee04-20&linkCode=as2&camp=217145&creative=399373&creativeASIN=B004VKR760
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https://www.youtube.com/watch?v=oiXf1PGL-ME
The new Keysight/Agilent 3000T Oscilloscope is released today, and Dave has a world first review of it.
It's a replacement for the existing 3000A X-Series, and is essentially the same in many ways, so only the differences are
covered in this video.
A lot of features from the 4000 X-Series have filtered down, and some things are now standard.
How does it compare to the Tektronix MDO3000?
Original 3000A review here: https://www.youtube.com/watch?v=zdbuSZVYewg
4000 X-Series review is here: https://www.youtube.com/watch?v=WhAWwomKRaE
Teardown: https://www.youtube.com/watch?v=H9QONLaitWU
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https://www.youtube.com/watch?v=FtcZ9K8551s