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65e30ed604a242d65bcf5ee3627d3634fb4af25f

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@EEVblog
Created On
20 Sep 2017 10:48:51 UTC
Transaction ID
dfcaecaeabcc2127b1d51c01f4aa37e7cbb4f65f2a114bbf6da9470cf657407e
Cost
Safe for Work
Free
Yes
EEVblog #936 - Mailbag
Old component bonanza Mailbag!
Forum: http://www.eevblog.com/forum/blog/eevblog-936-mailbag/

SPOILERS:
TI-74 BASIC pocket computer teardown from 1985
OpenMYR WiFi Motor Kickstarter
https://www.kickstarter.com/projects/77886650/wifi-motors?token=9aa90ab1

Several 4-banger calculators
GEZE automatic roller door controller teardown
E-Book reader teardown and PCB bypassing techniques,
http://www.switchandlever.com

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

T-Shirts: http://teespring.com/stores/eevblog
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video/mp4
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lbry://@EEVblog/ee-JnbnlWmxvrs
You know you want to see what's inside a 3D Rocker Platform. TDA2806A: http://eevblog.com/files/TDA2086A.pdf T410-600 TRIAC: http://www.mouser.com/ds/2/389/CD00002383-108813.pdf Forum Topic: http://www.eevblog.com/forum/blog/eevblog-435-3d-rocker-teardown EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: 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/
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lbry://@EEVblog/ee-HKNVIgsbYrA
Vintage Teardown Tuesday. What's inside the 1987 Commodore Amiga 500 computer. Relive Fat Agnus, Paula, Denise, and Gary in the Rock Lobster Forum Topic: http://www.eevblog.com/forum/blog/eevblog-438-amiga-500-retro-computer-teardown/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: 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/
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VIDEO
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lbry://@EEVblog/ee-Qo7MI9mrvfM
Dave tears down a 1962 vintage AVO Transistor Analyser. Service manual: http://www.eevblog.com/files/avo_ct446_transistor_analyzer_mk1.pdf The auction score video: https://www.youtube.com/watch?v=uqURkr9YVvM Forum: http://www.eevblog.com/forum/blog/eevblog-693-avo-transistor-analyser-teardown/ 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/
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VIDEO
EEVRA
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lbry://@EEVblog/ee-Iap43M40F80
The Lily Drone company has folded, admitted defeat, and will not deliver after 3 years, $30M in pre-sales plus $15M in VC funding. What a spectacular FAIL! https://www.lily.camera/adventure-comes-end/ IMPORTANT: This video clearly falls under the category of "Nominative use" a.k.a "Trademark Fair Use" under the (1992) U.S. Court of Appeals for the Ninth Circuit. There is no other way to report the news without using the company name. And there was no suggestion of endorsement or sponsorship. UPDATE: Lawsuit from the District Attorney: https://techcrunch.com/2017/01/12/sf-district-attorney-lawsuit-against-lily-may-have-prompted-refund/ And refunds might not happen, they owe the bank: https://www.suasnews.com/2017/01/the-people-vs-lily-robotics/ Forum: http://www.eevblog.com/forum/blog/eevrant-lily-drones-folds-after-$30m-in-pre-sales/ 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 T-Shirts: http://teespring.com/stores/eevblog
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lbry://@EEVblog/ee-niZizzHBanA
Part 7 of Microphone Technology with Doug Ford, former head designer at Rode Microphones. This video Doug takes you through the design of the Rode NT3 and NT1000 microphone designs. There is a ton of stuff in here: Closed loop unity gain JFET and bipolar follow circuits. Bootstrapping out miller capacitance. JFET biasing. How to eliminate expensive high value resistors. How to add a bridged-T network to add marketing "pizazz" to a microphone. How to stop oscillation in closed loop systems. How to test and design closed loop systems for stability. Dominate pole compensation. Traps for young players in power amplifier stability. How circuits with capacitive loads oscillate. Emitter degeneration. Parasitic inductances and their effects. How to design a low noise and ultra high dynamic range valve based microphone preamplifier. Microphone power supplies. And how to design an amplified zener current source. All other videos in this series are HERE: https://www.youtube.com/playlist?list=PLvOlSehNtuHv98KUcud260yJBRQngBKiw Forum HERE: http://www.eevblog.com/forum/blog/eevblog-629-how-to-design-a-microphone-preamplifier/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: 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/
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Want to include a small Lithium Ion or Lithium Ion Polymer battery into your next project? It's easy! Dave gives you the low down on how they work and how to charge them and select a suitable charging IC. NOTE: For safety you should always use circuit protected cells as per the larger cell I was holding up. It protects against over-discharge, over-voltage, shorts etc. (BTW, the reference to Lithium Ion Polymer being the same as Lithium Ion is in terms of charging, if that was not clear. The Ion Polymer type have polymer anode material and hence a different construction that allows the small pouch type cells shown in the video, and other thin odd shapes shown toward the end)
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1 year ago
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Transaction
Created
1 year ago
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English