281 clone project- taking orders now for last run of these..

toppobrillo · Posted: Tue Feb 05, 2008 3:30 am Post subject:

what size MOTM panel are you using? what size knobs? just curious

toppobrillo · Posted: Tue Feb 05, 2008 4:35 am Post subject:

here is a sample layout i just drew in illusrtator for a 3W frac panel

and then sqished it down to 2W eww it is squished

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Undergrind · Posted: Tue Feb 05, 2008 4:40 am Post subject:

Hey!

sorry for these questions but i dont really understand all English... and i dont understand in what stage the production run is..

- Can I still buy 2 of those boards?
- Is there a BOM?
- will the price be 12$ as mentioned in page 1 or 8$ as on page 2? Dint know if page 1 was updated later...
- how can I order? Can I Pay with paypal?
- Shipping costs to Germany..

Sorry again... I bet the answers are somewhere in this thread but reading and understanding it takes me a lot of time and after that im still not sure about it... Smile

regards

toppobrillo · Posted: Tue Feb 05, 2008 4:53 am Post subject:

toppobrillo · Posted: Tue Feb 05, 2008 5:00 am Post subject:

here is the same layout in one of those taller formats 2.25" x 5U high

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Undergrind · Posted: Tue Feb 05, 2008 5:02 am Post subject:

Hahahaha!

Thanks for the info!

when I see people here designing those greeeeat clones like you did I feel under educated too.
Very Happy

you got pm

RF · Posted: Tue Feb 05, 2008 7:57 am Post subject:

numbernone · Joined: Aug 16, 2006 Posts: 477 Location: new york city

OK I am feeling really dumb here... Can somebody explain the workings of the QUAD section?? It seems to make some sense to me looking at the original 281 panel (this is how I intend to build it), but then when I see panels that others are working out (mostly with just a B) I lose all perspective and am left scratching my head.

Cant wait!

BananaPlug · Posted: Tue Feb 05, 2008 9:46 am Post subject:

Here's another Frac version with more finger space and less text. I think this will work with board mounted pots because he gives us jumpers to decide which pot does what. The gray things are where pots or switches go. The red and black will be banana jacks on mine. Use a 1/2" knob for b level pot something a tad bigger for attack and decay.

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neandrewthal · Joined: May 11, 2007 Posts: 672 Location: Canada

asafnetzer · Joined: Jun 16, 2007 Posts: 112 Location: Israel

Hi topp,

I would like to order 2 pcb's if possible.
Great job and wonderful price.

Asaf

neandrewthal · Joined: May 11, 2007 Posts: 672 Location: Canada

What is the difference between topp's choice of "PK IN" and "PK OUT" and Banannaplug's "A or B" out. I chose Topp's method for mine because I have space for two jacks but I don't really understand what they do.

Anyway, here's my updated MOTM format panel. I had to compress the jack spacing to make room for everything. The CV pots are both dual gang for both the Attack and Release CV. I know this limits things a bit but I don't have room for both nor do I have any dedicated attenuator panels.

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toppobrillo · Posted: Tue Feb 05, 2008 5:43 pm Post subject:

klo · Joined: Feb 09, 2008 Posts: 9 Location: Darmstadt

4 for me please....

toppobrillo · Posted: Sun Feb 10, 2008 2:45 am Post subject:

Luka · Joined: Jun 29, 2007 Posts: 1003 Location: Melb.

any chance on the BOM josh?

sorry to hassle, but im about to place big orders in the next week or so

Sound · Joined: Jun 06, 2006 Posts: 842 Audio files: 1

Hi josh,

What IC, transistor and diodes is needed for each encelope?

I have read again the thread and it is not clear to me.

Thanks.

toppobrillo · Posted: Wed Feb 13, 2008 5:15 am Post subject:

etaoin · Joined: Jun 30, 2005 Posts: 761 Location: Utrecht, NL

Thanks topp. How much current do the boards draw? More specifically, can I use an 78L10 instead of the 7810. Because if I can, I have all the parts in stock Very Happy

toppobrillo · Posted: Wed Feb 13, 2008 7:00 pm Post subject:

etaoin · Joined: Jun 30, 2005 Posts: 761 Location: Utrecht, NL

toppobrillo · Posted: Sat Feb 23, 2008 9:21 pm Post subject:

just a quick update- i got word from the board maker so it looks like they will be here in a couple weeks or less. also, a word about paypal- i upgraded to a new level of account where they charge me a percentage for all payments recieved and another percentage for currency conversions?? haven't read all the fine print yet but it looks like around 6% for international exchanges. and 3 for domestic.

if you want to avoid this charge, i am totally cool with postal or international money orders/or any certified payment that i won't get charged for- just don't send me one for 2,500$ and ask me to refund the difference! har har

josh

Undergrind · Posted: Sun Feb 24, 2008 4:20 am Post subject:

ericcoleridge · Joined: Jan 16, 2007 Posts: 889 Location: NYC

I have a question about this circuit (circuit that I'm very excited to have a chance to build, incidentally). I'll preface by saying that I'm very much an amateur when it comes to understanding the circuits I build-- but what I'm wondering is-- if it would be possible to insert a signal into this chain that would bypass the "gate in" comparator so that the circuit might function as a voltage controlled Lag generator with Rise and Fall. With my limited knowledge as a guide, it seems like A/D envelopes and Rise/Fall lag generators are generally very similar circuits. I may be off on this, but I thought I'd put it out there: Would it be possible to modify this circuit for this added function?

toppobrillo · Posted: Wed Feb 27, 2008 7:23 am Post subject:

hey eric,

ummmrrrrrmm... no. we should pursue a different circuit for such use [see the post i just made in the DSG thread] it is too different- the thing i have proposed there is just different enough to justify it's pursuit- i.e. it is not an AR generator, per se, which this is. yeah the circuit action is basically the same, it's the controlling of that action that is very much different.

i just read the "Recommendations for PCB sales on electro-music.com" and realized that i never said that this is a project of, say, moderate difficulty?- meaning that this should maybe not be your first assembly job.

it's 12" square of stuff, and then you gotta do some inter-wiring between boards, etc.

just thought i would throw that out there.

josh