Fast monostable with a transistpor array

Combining schematics and documentation in the same document is sort of like a toothpaste and orange juice smoothie. I like orange juice, and toothpaste is useful. However...

Reminds me of IEC logic symbols. Another example of nuts.

The original simulation of the astable multivibrator was intended to demonstrate reasonable speed at low power.

The model was published by Intersil in 1996 in app note MM3046.

The simulation runs if properly typeset.

RL

Small rocks maybe.

We keep a separate design notes folder. It can say a lot more than could be hacked onto a schematic. I don't like a lot of comments on my schematics.

I often annotate schematics with things like nominal voltages, dashed rectangles to indicate circuit groups, and anything unusual that might be mistaken for an error, such as a BJT used upside-down.

Makes it easier for others to understand.

(We also keep notes, markups from bringup, and so on. )

Cheers

Phil Hobbs

"legg" snipped-for-privacy@nospam.magma.ca> wrote in message news: snipped-for-privacy@4ax.com...

Actually it does, see below.

Yes. It's not hard to find the original posts online.

Thanks for pointing that out. You're absolutely right. Here is the corrected version. As usual, line breaks will need to be fixed.

Version 4 SHEET 1 2848 1316 WIRE -592 512 -752 512 WIRE -240 512 -592 512 WIRE -64 512 -240 512 WIRE 32 512 -64 512 WIRE -64 528 -64 512 WIRE 32 528 32 512 WIRE -592 560 -592 512 WIRE -240 560 -240 512 WIRE -752 624 -752 512 WIRE -64 624 -64 608 WIRE 192 624 -64 624 WIRE 208 624 192 624 WIRE -64 640 -64 624 WIRE -240 688 -240 640 WIRE -128 688 -240 688 WIRE -592 704 -592 640 WIRE -464 704 -592 704 WIRE -384 704 -464 704 WIRE -240 704 -240 688 WIRE -240 704 -320 704 WIRE -464 736 -464 704 WIRE -240 736 -240 704 WIRE -64 768 -64 736 WIRE 32 768 32 608 WIRE 32 768 -64 768 WIRE -592 832 -592 704 WIRE 32 832 32 768 WIRE -512 880 -528 880 WIRE -464 880 -464 816 WIRE -464 880 -512 880 WIRE -448 880 -464 880 WIRE -384 880 -320 704 WIRE -320 880 -384 704 WIRE -240 880 -240 816 WIRE -240 880 -256 880 WIRE -208 880 -240 880 WIRE -32 880 -208 880 WIRE -208 912 -208 880 WIRE -512 928 -512 880 WIRE -752 1008 -752 704 WIRE -592 1008 -592 928 WIRE -592 1008 -752 1008 WIRE -512 1008 -512 992 WIRE -512 1008 -592 1008 WIRE -208 1008 -208 976 WIRE -208 1008 -512 1008 WIRE 32 1008 32 928 WIRE 32 1008 -208 1008 WIRE -752 1040 -752 1008 FLAG -752 1040 0 FLAG 192 624 out SYMBOL RES -608 544 R0 SYMATTR InstName R1 SYMATTR Value 1Meg SYMBOL res 16 512 R0 SYMATTR InstName R10 SYMATTR Value 2Meg SYMBOL cap -384 864 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 1.5p SYMBOL cap -256 864 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1.5p SYMBOL VOLTAGE -752 608 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL npn -32 832 R0 SYMATTR InstName Q1 SYMATTR Value NUHFARRY SYMBOL npn -528 832 M0 SYMATTR InstName Q2 SYMATTR Value NUHFARRY SYMBOL res -256 720 R0 SYMATTR InstName R3 SYMATTR Value 4.7Meg SYMBOL res -480 720 R0 SYMATTR InstName R4 SYMATTR Value 4.701Meg SYMBOL cap -528 928 R0 SYMATTR InstName C3 SYMATTR Value 0.68p SYMBOL cap -224 912 R0 SYMATTR InstName C4 SYMATTR Value 0.68p SYMBOL npn -128 640 R0 SYMATTR InstName Q10 SYMATTR Value NUHFARRY SYMBOL RES -256 544 R0 WINDOW 3 30 76 Left 2 SYMATTR Value 1Meg SYMATTR InstName R2 SYMBOL RES -48 624 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R11 SYMATTR Value 1Meg TEXT -768 1176 Left 0 !.tran 0 150u 50u startup TEXT -776 1112 Left 0 ;This example schematic is supplied for informational/educational purposes only.\nJuly 7, 2008 by Bill Sloman (but blame the Q10 output stage on James Arthur). TEXT -480 1176 Left 0 !.model NUHFARRY NPN\n+ (IS = 1.840E-16 XTI = 3.000E+00 EG = 1.110E+00 VAF = 7.200E+01\n+ VAR = 4.500E+00 BF =

I've spent that last four days in hospital with Covid-19 of the colon - dramatic when it started but tedious thereafter.

This thread hasn't gone all that well. John Larkin has ignored the fact that I was talking about just the 3096. There have been some sensible comments, but I'm still too sick to try and provide any kind of summing up of the sensible bits.

OK, we can defer discussing your one-shot circuit until you feel better. I've had some medical adventures of my own.

My sympathies to both of you, coincidentally I am just getting back on my feet after an eight day common cold from hell (was not Covid)

I thought you'd gone a bit quiet. I hope you get fully recovered quickly.

It's been about two years since I had Covid. All I noticed was loss of sense of smell and a cold but different variants affect different people differently.

I'm now wearing a 24-hour recording EKG thing. It's really no trouble at all. Pretty cool technology.

It's a pity that there is no low-drama equivalent for blood pressure.

And they have been around for at least thirty years. My mother got stuck with being a guineau pig for one some thirty years ago.

You do have to compress the upper arm.

FYI if you want to avoid getting covid again, it appears to be pretty much exclusively airborne, so you probably won't get infected if you (and your family if any) wear a respirator that fits you well, every time you are indoors with people not from your household.

To know whether the respirator fits you, you can do a DIY fit-test with a handheld nebuliser from a pharmacy, which you put a strong-tasting solution such as 3M FT-32 which you can buy from RS components. You breathe in through your mouth with your tongue slightly out, whilst surrounding the outside of the respirator with the bitter fog, and if the resporator leaks, you will taste it. Generally you will need to wear one with headloops and not earloops in order to pass. A 3M Aura is a good one to try - most people can get it to pass the test.

I haven't been sick at all since 2019, unless you count hangovers or headaches from staying up too late. The main downside is that I can't eat inside restaurants, so I order take-away instead. That seems like a good deal to me, but others have different priorities from which I will not attempt to dissuade them at present.

A Buzz Lightyear sort of full biohazard suit would be safer.

The best way of not getting Covid is to get vaccinated against it, and I've done that in spades. Wearing a face mask cuts the odds even further.

I probably got infected at my brother's house, when I was having dinner there with his wife and a cousin from half-way across Australia. My grand-niece who showed up briefly during the evening was the most likely vector - she's certainly infected her grandmother in the last couple of years.

Getting paranoid about getting infected isn't a realistic option.

This was my first dose of Covid. Because it got to my gut, it was fairly dramatic, and somewhat debilitating, but it looks as if I'm going to survive.