cmos IC question

Started by default in sci.electronics.basics2 months ago 18 replies

I'm using some cmos IC gates in a project. All seem to have an internal protection network to insure that the inputs can't exceed supply or go...

I'm using some cmos IC gates in a project. All seem to have an internal protection network to insure that the inputs can't exceed supply or go more negative than ground with internal diodes. My question has to do with those protection diode ratings. How much current can they clamp to prevent exceeding the input voltage rating? For instance, I'm running one part of the circuit at 8 volts...


Switch mystery

Started by AK in sci.electronics.basics3 months ago 6 replies

As you can see in the picture, the switch is set to the off position. When I test the continuity, there is no beep. However, when I test the...

As you can see in the picture, the switch is set to the off position. When I test the continuity, there is no beep. However, when I test the outgoing voltage, it is 18 Volts D.c. What gives? "https://www.dropbox.com/s/sngn1wyod4ni19i/Switch.jpg?dl=0"


NiMH batteries

Started by AK in sci.electronics.basics3 months ago 2 replies

I bought some EBL aaa nimh batteries. Voltage is 1.3 v. Does that mean they are already fully charged? Andy

I bought some EBL aaa nimh batteries. Voltage is 1.3 v. Does that mean they are already fully charged? Andy


Retro Button Would Further Automation On the Boeing Max & Everything Else That Seems Sophisticated Beyond the Intelligence of Designers

Started by Bret Cahill in sci.electronics.basics3 months ago 38 replies

Put a retro or "my kingdom for a horse" switch on anything that seems unnecessarily over automated or when the additional sophistication is of a...

Put a retro or "my kingdom for a horse" switch on anything that seems unnecessarily over automated or when the additional sophistication is of a minor advantage. If anything doesn't seem perfect, tap the retro switch and you are back to flying by the seat of your pants or at least something that is less complicated / more proven technology. It may seem counter intuitive but this would actual...


Really basic transistor question

Started by Bob Engelhardt in sci.electronics.basics3 months ago 3 replies

I want to build a device that will take my phones off line. The phones are connected to a Vonage modem that (I'm sure) uses the POTS standard....

I want to build a device that will take my phones off line. The phones are connected to a Vonage modem that (I'm sure) uses the POTS standard. Which is 50v DC at "idle"/on-hook and 90v (RMS) 20 Hz superimposed on that for ringing. 90v RMS is 250v p-p offset by 50v is -75 to 175 p-p. Off-hook is 10v DC with low voltage audio superimposed on that. The phones on the line are all electron...


Biology 10th Edition Peter Raven (Test Bank)

Started by Anonymous in sci.electronics.basics3 months ago

solutions book team learngroups2019@gmail.com l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com We...

solutions book team learngroups2019@gmail.com l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com We just reply by email learngroups2019(at)gmail(dot)com (We do not deal with direct reply via groups google Please Do NOT POST/REPLY HERE, just email us at learngroups2019(at)gmail(dot)com We're a team for providing solution manuals & Teast Bank to ...


Biochemistry 8th Edition by Jeremy M. Berg (Test Bank)

Started by Anonymous in sci.electronics.basics3 months ago

solutions book team=20 learngroups2019@gmail.com=20 l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o...

solutions book team=20 learngroups2019@gmail.com=20 l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com=20 We just reply by email learngroups2019(at)gmail(dot)com (We do not deal wit= h direct reply via groups google Please Do NOT POST/REPLY HERE, just email us at learngroups2019(at)gmail(do= t)com=20 We're a team for providing solution manuals & ...


Basic Marketing A Marketing Strategy Planning Approach 18th Edition by William D. Perreault Jr. (Test Bank)

Started by Anonymous in sci.electronics.basics3 months ago

solutions book team learngroups2019@gmail.com l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com We...

solutions book team learngroups2019@gmail.com l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com We just reply by email learngroups2019(at)gmail(dot)com (We do not deal with direct reply via groups google Please Do NOT POST/REPLY HERE, just email us at learngroups2019(at)gmail(dot)com We're a team for providing solution manuals &


Auditing and Assurance Services Understanding the Integrated Audit 1st Edition by Karen L. Hooks (Test Bank)

Started by Anonymous in sci.electronics.basics3 months ago

\solutions book team learngroups2019@gmail.com l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com...

\solutions book team learngroups2019@gmail.com l e a r n g r o u p s 2 0 1 9 @ g m a i l . c o m learngroups2019(at)gmail(dot)com We just reply by email learngroups2019(at)gmail(dot)com (We do not deal with direct reply via groups google Please Do NOT POST/REPLY HERE, just email us at learngroups2019(at)gmail(dot)com We're a team for providing solution manuals &


Switch for vaporizer

Started by Anonymous in sci.electronics.basics3 months ago 7 replies

I use this switch for a hot vaporizer. I noticed the switch get pretty warm when vaporizer is running. It draws 5 amps, but the switch is...

I use this switch for a hot vaporizer. I noticed the switch get pretty warm when vaporizer is running. It draws 5 amps, but the switch is rate at 3 amps. "https://www.dropbox.com/s/0zjo80p67eqbeui/3_Amp_Switch.jpg?dl=0" Does it look like any problems based on the picture? Andy


Ask a Question to the Electronics-Related community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright