1uF Capacitors

[R.G.]

Here in the USA, there are easy stocks of 1uF film caps (Mouser) that have 5mm lead spacing, and are 7mm wide, 5mm thick, and 10mm tall. That is, not much more PCB space than a radial electrolytic. In fact, the availability of 1uF electrolytics has decreased a lot. The film 1uFs are not terribly expensive. Mouser lists 61 1uF caps in stock with lead spacing of 2.54, 5.0, and 5.08 mm lead spacing and 50 or 63 V rating. They're US$0.28 to US$0.40 in 10-unit quantities, down to US$0.18 to US$0.35 in 100's.

I use electros when I just need a big enough capacitance. I use only film when I need to actually specify a frequency rolloff or filter frequency.

[GibsonGM]

I think the moon will be below the horizon at that time, but maybe (I'll have to go open my Adastra program which shows the orbits etc).  We're in the totality path, so going to have some fun - wife's a photographer.

Got the cars off the lawn before the thaw - that was a real joy Gonna all melt back to mud...

[Kevin Mitchell]

Wonder if we will be able to see the moon too ?

That would be the eclipse. The moon in front of the sun.
I heard VT is expecting some serious traffic for tourists to catch it. Some places (banks I've been told) are already planning to be closed.

[PRR]

In the last county in the US, a supermarket is changing brands, and planned to be closed for THREE DAYS to swap logos, specials, and POS software. As the population will be about 3X usual, and in a hungry holiday mood, I think this was a mistake.

[Phend]

Kinda alot off capacitors here but,,,
Will the dark side of the moon now be lite up ? So much for PF, lol.
What I want to see is star "light" in front of the moon.
The light that is bent by the gravity of the sun.
Ie the experiment long ago in Russia to prove gravity bends light.
As far as traffic, probably not different than that of a weekend at the ski hills.

[PRR]

Snowing hard here in VT, power goes out then on then out / on.
Trees are bent over with heavy snow.

View of the garage out the bedroom window--

[R.G.]

Snow?? Yikes! It's 80F today here. The ACs are running.

Central Texas is the same latitude as Morocco.

[davent]

Snow?? Yikes! It's 80F today here. The ACs are running.

Central Texas is the same latitude as Morocco.

Saw a very cool map recently that matched by latitude key European cities to key cities in the US & Canada, a real eye opener.

[PRR]

Trees are bent over with heavy snow.

Clear enough at dusk to see a Birch bent in a semi-circle, tip just touching the ground 24 feet over.

AND--- did you know you can carbonate Fireball? BigCliveLive "Fireball vs Sodastream. Will it carbonate?" Or do you not have Fireball that far west?

[Elijah-Baley]

I ask about this once.
My rule is to use 1uF film cap. Bipolar electrolytic if is specified in the schematic.
In the 1590A box, if I don't have room enough, low size 1uF, when I had, but the shops I used to order dont' have them so much, now.
Can I use MLCC? Someone told me them are unstable because the temperature.
A few of days ago I read again something about "Temperature Characteristic". I guess, just in case of small boxes, a "X7R type" should be ok, afterall.

https://www.allaboutcircuits.com/technical-articles/x7r-x5r-c0g...-a-concise-guide-to-ceramic-capacitor-types/

[BJF]

Hi there,

Yes for extremely cramped space I have some Multilayer 1uF.There is a 5mm spaced one that is X7R and just 2mm thick. 


Bjorn  Juhl
BJF Electronics

[Phend]

Winter wonderland with duck trails, Santa did not bring me coal this year.

[GibsonGM]

Much the same here, Paul...16" of white joy.  Huge number of ppl without power.  I am at my homestead with the wood stove happily burning, with 6 months of food and no worries, about to put together a FF from a couple of Ge's I managed to sort out   

[antonis]

about to put together a FF from a couple of Ge's I managed to sort out   

With the use of butane gas soldering iron, I presume..

[GibsonGM]

I have a generator. But mainly use that for pumping water and keeping my food cold      So butane is not out of the question!  Breadboard for right now.

[Kevin Mitchell]

My fellow New Englanders most certainly just felt that earth quake.

[GibsonGM]

Honestly, I thought it was snow going off the metal roof.  Just another 'thing'...I don't keep track anymore, TBH.

[mozz]

Walls were shaking a little bit at work here in Monroe county PA. Most people didn't feel it.

[PRR]

a "X7R type" should be ok

XR7 is the only dielectric I have "heard". It is different, on MY ear, from all others. Not bad, would not mind on guitar. Does depend a LOT where it is--- if sized for 0.1Hz response it has about no effect on 82Hz, but in a phono preamp where it was sized for a heavy 50Hz (rumble) cutoff it sounded "colored".

XR7 seems to be the magic sauce in some extra-cheap but beloved guitar gear.

[PRR]

that earth quake.

I used to live a few minutes away from that epicenter. What, every 100 years? I may have noted it this morning, but with all the utility trucks on the street it is hard to tell.