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Someone want to use to read one meter secretly killed all over the world, must be true, true experts

Started by Anonymous in sci.electronics.basics9 hours ago

I know you don't believe, but I said is true is...

I know you don't believe, but I said is true is true=20 =20 =20 =20 Beg you to intervene, I am sure that...


"Random" Circuit Needed.

Started by Jim Thompson in sci.electronics.basics11 hours ago 113 replies

For a simulation situation I need a random number generator with a twist... What I need to simulate is a "random" selection of one-of-16...

For a simulation situation I need a random number generator with a twist... What I need to simulate is a "random" selection of one-of-16 outputs. Clock "speed" is 12.5kHz ;-) Built of 74HCxx parts is preferred... I have a full ensemble of those device in my PSpice library. Thanks in advance. ...Jim Thompson -- | James E.Thompson ...


OT Marion's art

Started by John Fields in sci.electronics.basics21 hours ago 4 replies

I thought some of you might enjoy this. It's my sister-in-law's work and it's all fused glass except for...

I thought some of you might enjoy this. It's my sister-in-law's work and it's all fused glass except for the frame. https://www.dropbox.com/s/3a22p57lyzpt9bw/Dscn1668.jpg?dl=0 John Fields


LED Flashlights

Started by W. eWatson in sci.electronics.basics5 days ago 6 replies

Why is that LED flashlights irregularly shut off. I give mine a slight bang to turn the light on.

Why is that LED flashlights irregularly shut off. I give mine a slight bang to turn the light on.


Voltage Compliant Parts Updated

Started by Jim Thompson in sci.electronics.basics2 weeks ago 2 replies

CompliantParts.zip, on the Device Models & Subcircuits Page of my website, has been updated to include subcircuit representations... making it...

CompliantParts.zip, on the Device Models & Subcircuits Page of my website, has been updated to include subcircuit representations... making it easier to import into LTspice... Spice devices IDC, F and G are replaced by devices IDCLC, FLC and GLC These current-output devices exhibit real-world behavior... they will not pull their outputs to negative infinity. They stop pulling current at...


Transistor-Transistor TTL Logic and Totem pole output

Started by Patrick Chung in sci.electronics.basics2 weeks ago

By combining basic TTL Logic NAND gate with invertors and other gate any logical function can be realized in TTL technology. TTL family of logic...

By combining basic TTL Logic NAND gate with invertors and other gate any logical function can be realized in TTL technology. TTL family of logic circuits is specially empowered with TTL Totem pole output Read more: http://www.cirvirlab.com/index.php/electronic/181-transistor-transistor-ttl-logic.html


classic semiconductors

Started by Anonymous in sci.electronics.basics2 weeks ago 31 replies

What are the "Classic Semiconductors" out there? I stumbled across the MC34063 as a "classic" switching regulator (considered somewhat...

What are the "Classic Semiconductors" out there? I stumbled across the MC34063 as a "classic" switching regulator (considered somewhat obsolete today because of the low, 100 kHz switching frequency). It was news to me. But still not bad, at $0.61 each at Mouser. Now I'm wondering what else is considered a classic, for example, the 555, 2N2222, LM317, LM386, etc. Michael


VP95 PMOS?

Started by Jim Thompson in sci.electronics.basics2 weeks ago

Anyone have information on a VP95 PMOS FET? I can't even find a datasheet let alone a Spice model. ...

Anyone have information on a VP95 PMOS FET? I can't even find a datasheet let alone a Spice model. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 ...


Where to buy these electronic components for my project?

Started by Skelton John in sci.electronics.basics2 weeks ago 18 replies

Hi, I am new here. I am a designer at an electronic company. Now I want to design some gadget for hobby. Operation Dancing Light, circuit...

Hi, I am new here. I am a designer at an electronic company. Now I want to design some gadget for hobby. Operation Dancing Light, circuit diagram: http://4.bp.blogspot.com/-xk6tMYM9zBk/VOq7IiC_T-I/AAAAAAAAARI/4mazrjp0RmQ/s1600/Christmas1.png Parts List All the base presets are = 10K, All the collector resistors are 470 Ohms, All the diodes are = 1N4148, All NPN transistors are = BC547, The...


Chinese Germanium 1N34

Started by M. Hamed in sci.electronics.basics2 weeks ago 75 replies

So I got a bunch of these from China for a couple dollars. How can I tell they are not fakes and does it matter if I'm just going to stash them in...

So I got a bunch of these from China for a couple dollars. How can I tell they are not fakes and does it matter if I'm just going to stash them in my junk box and I don't expect any critical applications. In general, what's the right way to go about validating parts coming from China?


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