808 snare PCBs

qp · Post by qp » Sun Jun 15, 2014 9:23 am

falafelbiels wrote:This here is the schematic for the panelcomponentboard, you may need it.

Some values are different on the PCB, like 8k2=10k...

Pd is for pulldown (100k) and bypass caps are left out in the schematic.

Acc in isn't really normalled to 12v, it used to be in an earlier version.

The pot is the little plastic shaft one. The other pots are in the main board schematic, which is the one by Eric Archer found here

Ah, thanks for the schem. Found it. I didn't jumper Rx.

falafelbiels · Post by **falafelbiels** » Mon Jun 16, 2014 10:44 am

Works then?

qp · Post by qp » Mon Jun 16, 2014 1:05 pm

falafelbiels wrote:Works then?

The accent input does. I can hear a subtle difference with the tone, but I'll wait on the 100k pot before I look more into it. Besides, I'm off for vacation soon, so it'll sit for a bit anyway.

falafelbiels · Post by **falafelbiels** » Tue Jun 17, 2014 6:17 am

Try lowering the value of the standing resistor, it should give you a lower low level on the pot and thus bigger dynamic range. I think I used 100k for it but I can't think of a reason why. Should be more like 10k.

qp · Post by qp » Tue Jun 17, 2014 8:12 am

It's rockin a 10k already. If I have time tonight I'll swap it with a 1k and see what happens.

falafelbiels · Post by **falafelbiels** » Tue Jun 17, 2014 11:25 am

I see that I made a pic of a earlier revision board there...

textual · Post by **textual** » Fri Jun 27, 2014 1:54 pm

falafelbiels

Hey There,

I wanted to inquire if you ever finished the 808 kick pcb's and whether or not you have any of the snare remaining? this would be for non euro rack build..

Thanks!

Dave

falafelbiels · Post by **falafelbiels** » Fri Jun 27, 2014 8:15 pm

Hi Dave,

Yeah I do have some more snare PCB sets and also PCBs for the kick and hihat.
I had some issues with the panelcomponentboards for the kick and hihat and had another revision of these made. These came in last week but I still have to confirm they actually work the way I hope they do.
All of this is of no concern to you as you probably don't even want to use the euro- friendly panelcomponentboard anyway.

One thing I just noticed is that the mounting holes on the snare and hihat are rather small, looks like 2 mm diameter...

falafelbiels · Post by **falafelbiels** » Thu Jul 03, 2014 10:48 am

Okay I finally built a kick today and it's GOOD.
Nice long BOOOOMMMMmmmm if you want it, cool!

The panelcomponentboard is rather thin, must have goofed something up when ordering, but with all components installed it is very sturdy nevertheless.

I am going to PM the guys who expressed interest in this thread first, then start a new thread about it.

duff · Post by **duff** » Thu Jul 03, 2014 1:04 pm

Nice one

falafelbiels · Post by **falafelbiels** » Thu Jul 03, 2014 3:29 pm

I hope to build a hihat tomorrow. After that my latest invention: the Procrastinizer...

sicpaul · Post by **sicpaul** » Fri Jul 04, 2014 8:03 am

interested in
2 hats
1 snare
1 kick

and your panels if possible in white (nearly intransparent) if possible.
Love your designs anyway.

By the way, could you give me a tip where to get the white intransparent acryl you used in for the module with pink knobs left to kicks?

Cheers
Paul

falafelbiels · Post by **falafelbiels** » Sat Jul 05, 2014 5:23 am

sicpaul wrote:interested in
2 hats
1 snare
1 kick

and your panels if possible in white (nearly intransparent) if possible.

Noted & reserved...

sicpaul wrote:Love your designs anyway.

Thank you!

sicpaul wrote:By the way, could you give me a tip where to get the white intransparent acryl you used in for the module with pink knobs left to kicks?

I get it at a local store, but it is Perspex brand which you should be able to get all over the world. Maybe order at Parspex themselves (comes in 1m x 2m slabs, likely rediculous shipping). My bet is that someone near you sells the stuff. I tend to buy leftovers, which makes it kind of cheap.

sicpaul wrote:Cheers
Paul

Yeah, have a good one.

duff · Post by **duff** » Sat Jul 05, 2014 6:19 am

I'd like PCBs for

2 kicks
2 high hats

euromorcego · Post by **euromorcego** » Sat Jul 05, 2014 6:58 am

that looks great. How could I miss it? If available, I would definitely be interested in PCB sets for snare kick and hat (one each).
How much are the panels? They also look nice!

falafelbiels · Post by **falafelbiels** » Sun Jul 06, 2014 4:00 am

euromorcego

Sure, I just reserved you some.
I charge ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬25,- per PCB set and ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬10,- per panel. Shipping is ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬3,- worldwide.

duff

Done did reserve that for you.

And with that, I cleanly ran out of kicks for now. I will start another thread on interest in kicks and hats when all this is resolved.

Off to build a hihat now...

falafelbiels · Post by **falafelbiels** » Sun Jul 06, 2014 8:03 am

Hihat is good too

Only one thing that I don't like and can't explain:
Out of the +/- ten builds i have done so far, 2 sound very, very grainy. I have tried swapping out the hexinverters and several capacitors, to no avail. Might be I put in a wrong value resistor somewhere, hard to check unless I replace them all. This happened on my first ever build, and on the first one of today. Second one sounds great.

falafelbiels · Post by **falafelbiels** » Sun Jul 06, 2014 11:15 am

Alright, grainyness is fixed. Seems I had a sad tl072...

jberentsson · Post by **jberentsson** » Sun Jul 13, 2014 8:38 pm

I'm interested in 2x HiHat sets and 2x Snare sets with go buttons.

gianni · Post by **gianni** » Mon Jul 14, 2014 8:32 am

I'm interested in one hihat set, PCB plus panel, please.
Those cream coloured panels look great

falafelbiels · Post by **falafelbiels** » Tue Jul 15, 2014 8:20 am

jberentsson
gianni

I will be PMing you guys.

falafelbiels · Post by **falafelbiels** » Tue Jul 15, 2014 9:47 am

Okay I'm clean out of kicks and hihats.

falafelbiels · Post by **falafelbiels** » Wed Jul 16, 2014 3:38 pm

viewtopic.php?p=1617011#1617011 for kick

viewtopic.php?t=117677 for hihat

euromorcego · Post by **euromorcego** » Wed Jul 16, 2014 4:07 pm

got the PCBs today!

The only thing that seems a bit troubling are the switches. They seem rather expensive and to buy just a few results in (far too) high shipping costs. Maybe it would be possible to do some sort of group buy (at least for those in europe) or to add them to the pcbs (too late for me).

If there ever is a revision of the PCBs, i think it would be a good idea to make footprints for both, conventional switches and those. Should not be too difficult.

falafelbiels · Post by **falafelbiels** » Wed Jul 16, 2014 6:13 pm

Well my thinking is that these are simply great switches. Problem is I have run out and Mouser isn't stocking. Haven't been able to register at digikey. I am not very good at the internet...

I'll try again later this week when I have a bit more time/patience.

MOD WIGGLER

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808 snare PCBs

808s