Chocolate Milk

Started by Jim Thompson in sci.electronics.design4 days ago 23 replies

Chocolate Milk, San Fransicko strikes again... ...Jim Thompson -- | James E.Thompson ...

Chocolate Milk, San Fransicko strikes again... ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeana


Hysteresis without Feedback

Started by Jim Thompson in sci.electronics.design5 days ago 54 replies

I've succeeded in creating a hysteresis element that doesn't use feedback to accomplish the hysteresis... which means... ? No...

I've succeeded in creating a hysteresis element that doesn't use feedback to accomplish the hysteresis... which means... ? No convergence issues! ? Ability (I think) to now model B-H loops in inductors without the need for a built-into-the-Spice-engine device model, e.g., a Jiles-Ather


How Whales Change Climate

Started by Anonymous in sci.electronics.design5 days ago 10 replies

Dunno what kind of idiots think climate change is all about atmospheric and geophysics- well, actually I do: people too stupid to admit their...

Dunno what kind of idiots think climate change is all about atmospheric and geophysics- well, actually I do: people too stupid to admit their ignorance. Only now the modelling is being fined tuned for greater accuracy, and to explain fairly massive deviations from physics based predictions especially as regards rates of change, to account for the equally powerful effects of the biosphere. H...


CD4007 Logic Level Shifter

Started by Jim Thompson in sci.electronics.design5 days ago 8 replies

See "CD4007_Logic_Level_Shifter.zip" on the S.E.D/Schematics Page of my website. Had the original CD4007 designer been more free and not tied...

See "CD4007_Logic_Level_Shifter.zip" on the S.E.D/Schematics Page of my website. Had the original CD4007 designer been more free and not tied gates together, it could be done without the resistors. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et ...


OT? Rigol clearance

Started by George Herold in sci.electronics.design5 days ago 125 replies

Got a Rigol email https://www.rigolna.com/clearance/ George H.

Got a Rigol email https://www.rigolna.com/clearance/ George H.


Recognise this trace?

Started by Cursitor Doom in sci.electronics.design5 days ago 32 replies

Gentlemen, The link below shows a scope trace of the output of a linear PSU (voltage 4.7VDC) with about 300mV of 100Hz ripple riding on it....

Gentlemen, The link below shows a scope trace of the output of a linear PSU (voltage 4.7VDC) with about 300mV of 100Hz ripple riding on it. This PSU is in- circuit under load from the boards it supplies. Normally I would assume a filter capacitor to be at fault here, but they all check out fine so something else is causing this ripple. Note there is a characteristic 'knee' on the high ...


Zener Vs PN diode difference in forward mode

Started by Clive Arthur in sci.electronics.design6 days ago 47 replies

Apologies for the on-topic post. I have a class B amplifier with complementary Darlingtons for output, and an op-amp driving the...

Apologies for the on-topic post. I have a class B amplifier with complementary Darlingtons for output, and an op-amp driving the tied-together bases with -ve feedback from the output. It's simple and works pretty well. I was tinkering with LTspice to reduce the crossover distortion. I don't want class AB quiescent current, but putting three diodes between the bases to make the volta...


OT: Robert Kennedy Jr and Tucker Carlson interview on vaccines

Started by Jamie M in sci.electronics.design6 days ago 2 replies

Hi, https://www.youtube.com/watch?v=mNywFLm2QzI cheers, Jamie

Hi, https://www.youtube.com/watch?v=mNywFLm2QzI cheers, Jamie


Gravity is a Hoax

Started by Anonymous in sci.electronics.design6 days ago 29 replies

Or at least these lunatics thinks so: http://www.denverpost.com/2017/07/07/colorado-earth-flat-gravity-hoax/ The first order of business to...

Or at least these lunatics thinks so: http://www.denverpost.com/2017/07/07/colorado-earth-flat-gravity-hoax/ The first order of business to tightly curtail to the freedom to vote in elections, because this just isn't going to work.


OT: Looks like Don Jr may have stepped in it :)

Started by Anonymous in sci.electronics.design7 days ago 48 replies

http://www.foxnews.com/politics/2017/07/11/russian-lawyer-who-met-with-donald-trump-jr-denies-kr emlin-connection.html

http://www.foxnews.com/politics/2017/07/11/russian-lawyer-who-met-with-donald-trump-jr-denies-kr emlin-connection.html


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