1153 bounce bounce bounce bounce bounce bounce bounce bounce

Vumnoo · 2020-12-18T00:51:04.376Z

The more the merrier!

twinturbo · 2020-12-18T20:17:59.924Z

I guess i best go look at the BOM BOm Bom bom

twinturbo · 2020-12-18T20:23:43.803Z

TL071? guess i need to order some of them

lookmumnocomputer · 2020-12-18T20:34:59.988Z

typo! 72 just finishing bom now:D sorry about that!

Caustic · 2020-12-18T21:01:33.121Z

Kozmo getting some Gummi Berry Juice.

Riggidyboo · 2020-12-18T21:21:37.607Z

If I keep buying all these modules, my checks might bounce too.

twinturbo · 2020-12-18T22:21:03.608Z

Half thought you had gone left field to wake us all up and introduce an incompatible pin chip…

but stronger half suggested a Dyslx transposition for which I have a million times to correct on my worx…

twinturbo · 2020-12-18T22:21:55.384Z

Scary Sh…

Circulartonic · 2020-12-19T06:16:49.077Z

I gotta make this. Love that bouncing bounce bounce…

klausklaerwerk · 2020-12-21T10:18:02.268Z

@lookmumnocomputer can’t find the bom anywhere…

lookmumnocomputer · 2020-12-21T11:00:18.064Z

sorry about that I must not have saved the changes to the website! its up now

LOOK MUM NO COMPUTER

STUFF - LOOK MUM NO COMPUTER

Click on the images for more info on the projects, this is a work in progress and will build on the pages as i go.

Dud · 2020-12-21T13:24:11.545Z

is it normal that output and inverted output are on the same point.
the inverted one shouldn’t be after the first opamp ?

ONE+SHOT - Copie985×552 37.2 KB

eric · 2020-12-21T13:46:49.062Z

There is a single pot listed in the BOM instead of five…
Should they be linear or log ?
And I count 9 100nF caps on the schem and a single one in the BOM…

lookmumnocomputer · 2020-12-21T13:52:13.906Z

yeah they are basically multiples in the end, its just a label hanging over from earlier in the design process before the attenuverter

it was either having a wonky attenuverter and mirrored outputs, or the negative output much lower signal level, both didnt seem like a good idea so I went for just multiples of the end output because of space on the circuit board.

lookmumnocomputer · 2020-12-21T13:52:37.999Z

thanks Eric ill fix that, linear all 100k

eric · 2020-12-21T13:54:53.285Z

Thanks,
look also at my edit, 9x 100nF…

lookmumnocomputer · 2020-12-21T13:56:21.421Z

in the end Eric its only 1 100nf, basically because of space constraints on the pcbs I skipped the decoupling capacitors on the opamps in this module. (only 1 on the one shot digital chip)

because in an envelope generator it doesn’t matter much at all. and I planned in the next couple of days I will make a pic of how to add the capacitors easily if it really matters too much, but in this setting its as useful as wearing tin on your head haha.

they are in the schematic still. but not on the PCB. if its confusing then I can remove them, but yeah I did a bunch of tests here and there and making the PCB busier and fiddlier (its already quite a fiddly pcb) just didn’t seem worth it on a module like this.

eric · 2020-12-21T13:57:57.470Z

OK. I just looked at the schem which has 9…

lookmumnocomputer · 2020-12-21T14:01:00.354Z

all good! hopefully it makes sense now.

Dud · 2020-12-21T15:37:12.010Z

ok thanks, anothers question, what the AV pot is for plz ? attenuverter ?

EDIT :

lookmumnocomputer:

1153 Bounce is available here

the link is not actived on the website