The basic electronic units of Farads and Coulombs have new definitions: Farad units are seconde^2 Coulomb units are square...

The basic electronic units of Farads and Coulombs have new definitions: Farad units are seconde^2 Coulomb units are square meters http://fcgravity.blogspot.com/p/first-law-of-difffusion-of-herenowium.html#elec These units are not approved by The Bureau of Measures in France. It will take years.

Hi all, I am embarking on a project to "recreate" the sound of a 1990s Drumfire sound board. Somebody posted a plan on Yahoo. I noticed a...

Hi all, I am embarking on a project to "recreate" the sound of a 1990s Drumfire sound board. Somebody posted a plan on Yahoo. I noticed a couple of parts -- op amps with leading circles -- that Google displayed as OTA, operation transconductance amplifiers. I had never heard of that. The model in the circuit, the CA3080, is unobtanium but I found on Digikey a couple (very few) of replacement OT...

I am trying to solder some RG-6 shield to a pcb. The braid won't tin. It's almost like it's dissipating the heat faster than I can apply it....

I am trying to solder some RG-6 shield to a pcb. The braid won't tin. It's almost like it's dissipating the heat faster than I can apply it. With both a temp-controlled iron (set as high as 700F) and a mondo 100W stick I finally tried. The solder will barely melt when touched to the braid opposite the iron. I've applied some Kester rosin paste flux as well using my trusty Kester 60/4...

A rudimentary behavioral model of the Vishay VOM1271 PhotoVoltaic MOSFET Driver has been posted... see VOM1271.zip on the Device Models &...

A rudimentary behavioral model of the Vishay VOM1271 PhotoVoltaic MOSFET Driver has been posted... see VOM1271.zip on the Device Models & Subcircuits page of my website. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASI...

See AD790_JT.zip on the Device Models & Subcircuits Page of my website: Behavioral model based on the datasheet only. Comments most...

See AD790_JT.zip on the Device Models & Subcircuits Page of my website: Behavioral model based on the datasheet only. Comments most welcome. Please report any issues. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations |

Help with identifying a TO-92 transistor?(at least I think it?s a transistor?) Pretty vanilla-looking with National Semi logo. Marked: NS...

Help with identifying a TO-92 transistor?(at least I think it?s a transistor?) Pretty vanilla-looking with National Semi logo. Marked: NS 444 ST 13903 (The ?NS? is the logo.) Not enough 4?s to make up a standard 2N number, and 13903 looks like a date code? Ideas? Thanks,

My neighbor has a solar powered outdoor decoration light that cycles through several colors but only runs for maybe an hour at night. It has a...

My neighbor has a solar powered outdoor decoration light that cycles through several colors but only runs for maybe an hour at night. It has a single 1200 mAh 1.2 volt rechargeable battery and a couple small solar cells to charge the battery. I measured the load current at 15 milliamps and the charge current at only 1.3 milliamps so it appears the solar array is not charging the battery ...

Hi all, I'm sure someone has an quick answer for this. I'd like a simple circuit or a part that produces a pulse -- basically a one-shot --...

Hi all, I'm sure someone has an quick answer for this. I'd like a simple circuit or a part that produces a pulse -- basically a one-shot -- with both a rising edge and falling edge input signal. All the multivibrator ICs I have seen will trigger on rising OR falling, but not on both. How can I get a trigger on both? Thank you! -- Douglas Beeson

New Spice Model Posted to my Website: See MC33161_JT.zip (Universal Voltage Monitor) on the Device Models & Subcircuits Page of my website. ...

New Spice Model Posted to my Website: See MC33161_JT.zip (Universal Voltage Monitor) on the Device Models & Subcircuits Page of my website. (Also see DigitalPrimitives.zip for the digital details.) This is a SWAG based ONLY on the datasheet. Please direct all questions/comments/error-reporting via my website or via the LTspice List... S.E.D is no longer suitable for technical discuss...

New Spice Model Posted to my Website: Every Spice Simulator has their own proprietary way of implementing digital functions... LTspice Digital...

New Spice Model Posted to my Website: Every Spice Simulator has their own proprietary way of implementing digital functions... LTspice Digital Primitives don't play on PSpice, PSpice Digital Primitives don't play on LTspice... neither play anywhere else. Thus I have rolled my own Spice Model for the venerable HC4538 one-shot that uses universal behavioral modeling for the digital elemen...