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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  Building the Echo Base PCB 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Building the Echo Base PCB  (Read 87812 times)
Ginsengbob
Posts: 27



Re: Building the Echo Base PCB
« Reply #120 on: February 04, 2011, 06:53:02 PM »

Would that possibly work in the small holes next to "time" and "b50k".
Thanks for the welcome.
So far this build has been very easy and enjoyable.
Just hope it all works when I'm done.
Just checked out your site.
Are there any sound samples from the Christine fuzz glitch pcb?

Thanks
Chris
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Taylor
Posts: 3886

The clean energy source of the future.


Re: Building the Echo Base PCB
« Reply #121 on: February 04, 2011, 06:58:37 PM »

Yes, exactly. The silk screen component legend is your guide for what parts to put where. You don't need to worry about those tiny holes that have no silk screened part on them.

No clips of the Christine yet, in fact I haven't put the build document up. I will be doing that this weekend though. It's a really great project designed by The Tone God, and I thought it deserved some more attention, since it's such a simple build for how much it does.
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Ginsengbob
Posts: 27



Re: Building the Echo Base PCB
« Reply #122 on: February 04, 2011, 08:12:45 PM »

Okay ,hopefully this is the last of my questions.
First , let me clarify.
When I was asking about the ground for the audio I was asking if it was ok to use the holes next to "time" and b50k, not the hole which says
G next to 9v.
They look like they might be vias.


Second.......
the 1UF cap that is directly under lfo speed B1m.
All I have is a polarized 1uf with a + and -.
would that work?
And if so , which way goes where?



thanks
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Taylor
Posts: 3886

The clean energy source of the future.


Re: Building the Echo Base PCB
« Reply #123 on: February 04, 2011, 09:09:16 PM »

Okay ,hopefully this is the last of my questions.
First , let me clarify.
When I was asking about the ground for the audio I was asking if it was ok to use the holes next to "time" and b50k, not the hole which says
G next to 9v.
They look like they might be vias.

Ah, I see. In this case those 2 vias do in fact connect to ground, though you can't assume that this is always or even usually the case. So, yes you can connect your grounds there, though you might wind up with less noise by wiring grounds to the power jack (star grounding).


Quote
Second.......
the 1UF cap that is directly under lfo speed B1m.
All I have is a polarized 1uf with a + and -.
would that work?
And if so , which way goes where?



thanks

I'm not sure about that. Slacker (designer of the circuit) once said that while non-polar is technically required, it will probably work fine with a polarized cap. In this case I don't suppose orientation matters. Now, the cap may in fact fail at some point due to some amount of reverse voltage, so if I were you I'd still order a non-polar cap and replace the electro you have when you can.
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Ginsengbob
Posts: 27



Re: Building the Echo Base PCB
« Reply #124 on: February 04, 2011, 11:54:16 PM »

thanks
I guess I'll have to make another order.
I'm also missing the 50k resistor , would a 51k make a difference?
I also noticed that there was some talk about both sides of the board needing to be soldered.
Is this right? Both sides should be soldered or does soldering on the bottom get through to the top as well.

I'm stoked to hear the Christine sound samples.
As soon as I get some extra cash I'm going to order all your other boards.
 
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Taylor
Posts: 3886

The clean energy source of the future.


Re: Building the Echo Base PCB
« Reply #125 on: February 05, 2011, 12:09:45 AM »

51k resistor is fine - in general effects are designed with 5% tolerance resistors in mind, so anything within 5% of the value will be unlikely to make a noticeable difference, unless a precision resistor was specified.

It doesn't matter which side you solder on - the holes are plated through so they connect with both sides automatically. Most people solder on the side that does not have the silkscreen.
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Ginsengbob
Posts: 27



Re: Building the Echo Base PCB
« Reply #126 on: February 05, 2011, 12:13:18 AM »

That's what i thought about the resistors.
When using a 78l05 does the flat end face the bottom towards the 220nf cap?
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Ginsengbob
Posts: 27



Re: Building the Echo Base PCB
« Reply #127 on: February 05, 2011, 01:53:10 PM »

Ok
I think I see it now.
Feeling kind of stupid for not realizing the pinouts are the same.
Thanks for the help.
This forum really makes it pianless.
« Last Edit: February 05, 2011, 02:04:12 PM by Ginsengbob » Logged
rmachado
Posts: 20



Re: Building the Echo Base PCB
« Reply #128 on: February 07, 2011, 03:38:36 PM »

Taylor, it's been one year I built my echobase.
He ran into some problems, because as you said, too many wires.
I wonder if you have pcb layout available in PDF, so I could make a model of its board, which I think is the best one.
I thank you, Raphael.
PS: I live in Brazil, and do not think that you can send me your PCB here, but I could buy you just the design of the PCB by e-mail. Sorry my English.
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Taylor
Posts: 3886

The clean energy source of the future.


Re: Building the Echo Base PCB
« Reply #129 on: February 07, 2011, 03:43:56 PM »

Hi Raphael, unfortunately it's not possible to make this PCB at home, because it's double-sided and has extremely tight trace spacing. It has to be manufactured.

However, I do send PCBs to Brazil, and shipping isn't too expensive - check the website: musicpcb.com.
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rmachado
Posts: 20



Re: Building the Echo Base PCB
« Reply #130 on: February 07, 2011, 04:07:18 PM »

Taylor,
The price is $ 14 of pcb + $ 2  maritime shipping?
How do I pay?
Thanks.
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Taylor
Posts: 3886

The clean energy source of the future.


Re: Building the Echo Base PCB
« Reply #131 on: February 07, 2011, 04:23:53 PM »

Raphael, I sent you a private message with the details.
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rmachado
Posts: 20



Re: Building the Echo Base PCB
« Reply #132 on: February 07, 2011, 08:00:28 PM »

Taylor,
I can not get value from $ 4 in shipping, it's always $ 2.
How do I proceed?
Thanks.
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Taylor
Posts: 3886

The clean energy source of the future.


Re: Building the Echo Base PCB
« Reply #133 on: February 07, 2011, 08:18:24 PM »

Hi Raphael, can you email me at info@musicpcb.com? I will help you place the order.
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snarblinge
Posts: 208



WWW
Re: Building the Echo Base PCB
« Reply #134 on: February 11, 2011, 04:08:56 AM »

just got my pcbs and starting the ordering of bits.

I also want to add in the feedback loop and switch it 2 or 3 ways, hopefully will have time to trawl the big thread, but just on the off chance has anyone made a quick schem. of the options?
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b.

snarblinge.tumblr.com
slacker
Posts: 5290

Ian M. - England


Re: Building the Echo Base PCB
« Reply #135 on: February 11, 2011, 10:50:17 AM »

For effects loops, have a look at my post in this thread http://www.electro-music.com/forum/viewtopic.php?t=39579&postorder=asc&start=375
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snarblinge
Posts: 208



WWW
Re: Building the Echo Base PCB
« Reply #136 on: February 11, 2011, 02:53:56 PM »

thank you for the whole thing slacker. can't wait to hear this thing.
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b.

snarblinge.tumblr.com
phector2004
Posts: 984


Phil T.


Re: Building the Echo Base PCB
« Reply #137 on: February 20, 2011, 10:56:14 PM »

Gonna finally build this thing tomorrow, hope it'll work just fine with the following subs:

2 x 20k --> 22k
2 x 47k --> 22k  (HB mod)
1 x 240k --> 220k
1 x 50k --> 47k

I'm also posting a comfortable-to-build 1590BB drilling layout for the "no frills" version (Bypass, Tails, LFO) to help out any disorganized mess creators like me. Hopefully, no considerable crushage will be needed to close the lid!



It's made to fit 16mm pots with plastic covers, "innie" DC jack, 2 toggles on the back, switchcraft-type jacks, LED bezel, and bypass switch of your choice.
Note that this relies on offboard wiring, not board-mounted pots! You'll need to drill the pots more closely together if you end up doing that.
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slacker
Posts: 5290

Ian M. - England


Re: Building the Echo Base PCB
« Reply #138 on: February 21, 2011, 11:33:28 AM »

Looks good, those subs will be fine.
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El Heisenberg
Posts: 833



Re: Building the Echo Base PCB
« Reply #139 on: February 28, 2011, 11:28:35 AM »

Ugh my PCBs came two days before my smallbear order assuming smallbear arrives today. The wait is killibg me!!

Ive put everything on the board except the PT2399 and some other stuff. Gotta buy my PC mount pots locally today, as soon as i get my package.

The PCBs are crazy. Not like anything ive worked on since i started doin this. They really look...great. Its like assembling a Boss or Z-Vex pedal.



How does the diode lift mod from the PDF sound?
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"Your meth is good, Jesse. As good as mine."
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