Electronics Design

News server weirdness

Bits of usenet are acting flaky at the moment (the servers, I mean--we all know about the posters). For Rick's "compara...

10 comments posted 6yrs

posted by pcdhSpamMeSenseless

10 comments posted 6yrs posted by pcdhSpamMeSenseless

Solder Sample

When we order PCBs, especially first time, we ask for a "solder sample" board, which isn't guaranteed to be defect-free...

5 comments posted 6yrs

posted by jlarkin

5 comments posted 6yrs posted by jlarkin

TCA0372 shortage?

ON still lists the TCA0372 power op amp as active, but total distributor stock is less than 1k pieces and the quoted le...

56 comments posted 6yrs

posted by pcdhSpamMeSenseless

56 comments posted 6yrs posted by pcdhSpamMeSenseless

Cute dpot hack for increased resolution

So I'm doing a simplified version of the differential laser noise canceller, which in the spherical cow universe looks...

20 comments posted 6yrs

posted by pcdhSpamMeSenseless

20 comments posted 6yrs posted by pcdhSpamMeSenseless

24V to 500-1000V, 20W floating DC-DC converter

I need to make a 24V to 500-1000V, 20W adjustable power supply for a pulser . It needs to be a floating or negative con...

104 comments posted 6yrs

posted by matt.blessinger

104 comments posted 6yrs posted by matt.blessinger

avalanche transistors

Has anyone made high-voltage pulses from a series string of avalanche transistors? Any wisdom? -- John Larkin Highland T...

20 comments posted 6yrs

posted by jlarkin

20 comments posted 6yrs posted by jlarkin

How to interpret Duracell AA data

This datasheet for a "Duracell AA Power Pix" (ZR6 Zn/NiOOH) cell had me puzzled for some time. It's a one-page datashee...

6 comments posted 6yrs

posted by nobody

6 comments posted 6yrs posted by nobody

Laser Cut Plexiglass

I had someone today tell me it would be hard to bevel laser cut plexiglass. Anyone know if that is true? I know little...

29 comments posted 6yrs

posted by gnuarm.deletethisbit

29 comments posted 6yrs posted by gnuarm.deletethisbit

1-Wire ADC

Was looking for a way to monitor a number of 12V deep cycle L-A batteries. Since we have an installed 1-Wire network, i...

13 comments posted 6yrs

posted by wb8foz

13 comments posted 6yrs posted by wb8foz

Why So Many Units?

I thought the point of SI was to unify the use of units so everyone could speak the same language? On this ventilator I...

61 comments posted 6yrs

posted by gnuarm.deletethisbit

61 comments posted 6yrs posted by gnuarm.deletethisbit

Anti-Polar Vortex?

WTF??? I don't recall seeing heat like this... EVER! Just when I thought 20 days of 90 degree heat was bad it rises to 9...

23 comments posted 6yrs

posted by gnuarm.deletethisbit

23 comments posted 6yrs posted by gnuarm.deletethisbit

Vitamin K in green vegetables essential to not dieing from Corona Virus.

Hello, All patients that died from Corona had a Vitamine K shortage. Here is a little poll among you guys: How many of...

3 comments posted 6yrs

posted by skybuck2000

3 comments posted 6yrs posted by skybuck2000

Re: Is this a very poor description or am I ignorant?

> > *What exactly is the Work of Start Capacitor?* > >For single-phase motors normally have both the run and start capa...

0 comments posted 6yrs

posted by upsidedown

0 comments posted 6yrs posted by upsidedown

Comparator with Wide Common Mode Range

Selecting parts can be a PITA. Comparators have a LOT of very detailed spe cs that all need to be checked. I have been...

27 comments posted 6yrs

posted by gnuarm.deletethisbit

27 comments posted 6yrs posted by gnuarm.deletethisbit

FF with High True Enables

The only FF devices I can find with a high true reset control are the CD401 3 and CD4027 and the part number variations...

1 comments posted 6yrs

posted by gnuarm.deletethisbit

1 comments posted 6yrs posted by gnuarm.deletethisbit