Another ebay score.
Dave tears down a HP4263A LCR Meter.
How an LCR Meter works: https://www.youtube.com/watch?v=fs2MfTW4o_Q
Forum: http://www.eevblog.com/forum/blog/eevblog-757-hp4263a-lcr-meter-teardown/
4263A Datasheet:
http://www.testequipmenthq.com/datasheets/Agilent-4263A-Datasheet.pdf
4263A User Manual:
http://literature.cdn.keysight.com/litweb/pdf/04263-90001.pdf?id=722686
4263B service manual: http://www.doe.carleton.ca/~nagui/labequip/lcr/4263B_Service%20Manual.pdf
...
https://www.youtube.com/watch?v=73AWJSugx3o
Just a quick one. Dave found the latest LOST easter egg in the Agilent 3000X/2000X series oscilloscope Ver1.2 firmware.
...
https://www.youtube.com/watch?v=gb3hL_DH02E
Dave takes a look at the BK Precision 8601 DC Electronic Load and compares with his older 8500 model.
A teardown and some playing around with the software
DIY Electronic Load: http://www.youtube.com/watch?v=8xX2SVcItOA
8500 Teardown: http://www.youtube.com/watch?v=AHu0MGEagSo
Forum: http://www.eevblog.com/forum/blog/eevblog-862-bk-precision-8601-dc-electronic-load/
Datasheets:
IRFP250N MOSFET http://www.irf.com/product-info/datasheets/data/irfp250n.pdf
...
https://www.youtube.com/watch?v=5dNxzzuMTB8
How to hack a calculator into a test system event counter.
Previous video on contact debouncing and using a universal counter: https://youtu.be/Nj-Q8FQxHhU
Forum: http://www.eevblog.com/forum/blog/eevblog-962-hacking-a-calculator-into-a-counter/
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
...
https://www.youtube.com/watch?v=U8DnuSo8SV4
The Dulmont Magnum "Kookaburra" from 1983 is the only laptop to have even been design and made in Australia, as well as being one of the world's first "clamshell" laptop designs.
Dave tears down this obscure retro classic based on the equally rare 80186.
Brochure: http://www.eevblog.com/files/Kookaburra.pdf
UPDATE:
John Blair has responded about this video:
Dave
Thanks so much for sending this along; I got a huge kick out of it.
I can answer some of the questions you raised in the video:
(*) You're right there was no removable R/W storage in 'laptop' mode; the 'disks' that MSDOS saw were implemented in RAM. You added removable storage by connecting the dual floppy drives via the parallel connector that you noted on the back.
...
https://www.youtube.com/watch?v=st7H_vqSaQc
Review of the $225 Kingsom KS-180 HEPA flexible arm solder fume extractor.
Does it suck?
http://www.kingsomtech.com/product/Fume-Extractor/
https://www.alibaba.com/product-detail/Kingsom-Nail-Suction-Dust-Collector_62409199915.html
Another brand: https://s.click.aliexpress.com/e/_dVTRYeV
Subscribe on Library: https://lbry.tv/@eevblog:7
Forum: https://www.eevblog.com/forum/blog/eevblog-1305-hepa-solder-fume-extractor/
#Soldering #Fumes #Review
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
AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g
Buy anything through that link and Dave gets a commission at no cost to you.
Donate With Bitcoin & Other Crypto Currencies!
https://www.eevblog.com/crypto-currency/
T-Shirts: http://teespring.com/stores/eevblog
...
https://www.youtube.com/watch?v=ffaiKZMU0Lw
What is the best electronics textbook?
A look at four very similar electronics device level texbooks:
Conclusion is at 40:35
Electronic Devices by Floyd: https://amzn.to/2s4BSnK
Electronic Principles by Malvino & Bates: https://amzn.to/2DX88f3
Microelectronic Circuits by Sedra & Smith: https://amzn.to/2s5nBXX
Electronic Devices and Circuit Theory by Boylestad: https://amzn.to/33TF2rC
Also:
The Art of Electronics: https://amzn.to/2qv2j5p
Art of Electronics X Chapters pre-order: https://amzn.to/2qAmQWq
Digital Systems by Tocci: https://amzn.to/2Lvo8Jh
Forum: https://www.eevblog.com/forum/blog/eevblog-1270-electronics-textbook-shootout/
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
AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g
Buy anything through that link and Dave gets a commission at no cost to you.
Donate With Bitcoin & Other Crypto Currencies!
https://www.eevblog.com/crypto-currency/
T-Shirts: http://teespring.com/stores/eevblog
...
https://www.youtube.com/watch?v=m08EqBTeg4I
Dave sketches up an idea for a more integrated Raspberry Pi supercomputer cluster with integrated ethernet and power.
Forum: http://www.eevblog.com/forum/blog/eevblog-934-raspberry-pi-supercomputer-cluster-part-1/
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):
...
https://www.youtube.com/watch?v=KI7YLXhovb8
Dave unboxes a random bit of gear from ebay. What is it?
Spoiler: http://bit.ly/11lzphL
Forum Topic: http://www.eevblog.com/forum/blog/eevblog-450-ebay-unboxing/
EEVblog Main Web Site:
http://www.eevblog.com
EEVblog Amazon Store:
http://astore.amazon.com/eevblogstore-20
...
https://www.youtube.com/watch?v=bfp0QnQujvs