I've had a Multiplex PCB from 1776 effects in my build pile for almost a year now and I should really get round to doing something with it. Before I get started here's a description of the Multiplex from Josh at 1776 effects
The Multiplex Echo Machine is based on tape delays of the past. It has selectable
“modes” that recreate a good approximation of the delay’s they emulate. It also
includes a control for on the fly tape speed manipulation, allowing the repeats to
speed up or slow down while pressing and releasing the footswitch. .
Binson Mode :
This simulates just one of the many cool things about the Binson Echorec. You
can get one long repeat and then subsequent repeats of that note are repeated
faster.
RE-201 Mode :
This simulates the dual rhythmic repeats of an RE-201 Space Echo. To best
utilize this mode, Delay 1’s time should be shorter than Delay 2’s time. Once you
get the hang of it you can find the rhythmic sweet spots pretty quick.
EP-3 Mode :
This simulates the classic Echoplex. Nothing crazy, just a normal delay setup
using only one of the PT2399’s.
As I said I've had this pcb for almost a year now along with a pcb to add modulation and for a laugh I thought I'd add a reverb pedal and an EP3 preamp into the same box for a modulated style echoplex which also has reverb. In this thread I'll cover the planning stage (full disclosure I've never built a pedal with 4 separate circuits before so I definitely need to plan it), drilling, finishing the enclosure, populating then testing the pcbs, wiring it all up in the enclosure and then a demo video to show how it sounds.
Comments
Might have to order myself one of those PCBs.
I’ve gone ahead and ordered the rest of my pcbs so for anyone who might want to build their own I’ll be using
1776 multiplex delay
http://1776effects.com/product/multiplex-echo-machine/
1776 multiplex modulation add on
http://1776effects.com/product/mp-modulation-add-on-pcb/
I decided to go with Josh’s rub a dub deluxe reverb which uses the new adjustable Belton brick and adds a tone control.
http://1776effects.com/product/rub-a-dub-deluxe/
For the Preamp I’ve ordered the Aion electronics Ares pcb based on the Clinchfx version of the echoplex preamp.
https://aionelectronics.com/project/ares-echoplex-ep3-preamp/
All of the switching will be on opto tron boards also by 1776 effects though I already had these in my stash.
http://1776effects.com/product/opto-tron-optical-bypass/
Now I know what I’m going to use I’ll grab the build docs and work out what size enclosure I’m going to need and any other parts which I don’t have in my stash.
I have some templates I got from the madbean forum for different enclosure sizes and step one was to cut, paste and resize the drill templates from each pcb onto it to work out where everything will go.
It looks like the preamp pcb on the right is hitting the multiplex pcb but it will be raised higher in the enclosure so they both fit just fine. This layout will also let me use top mounted jacks and dc socket.
Once I was happy with the layout and placed drill points for everything I mocked up how it will look when finished minus the graphic for the top I genuinely don't know what I'm going to go with yet.
Then drilled some 3mm pilot holes
Why is there always one little bugger who ends up slightly out of alignment? 3rd in from the left on the bottom row! It wont be as noticeable when everything is taken out to it's proper size and finished but damn it's annoying.
Here's everything taken out to it's proper size and ready for a decal and envirotex.
That's all I can do with the enclosure for now until I decide what graphics I want to use and pour some envirotex on it. Now I can move onto populating the pcbs I already have while waiting for the others to arrive.
yeah the reverb and preamp pcbs were ordered from the states and will probably take 1 to 2 weeks to arrive. I can’t remember the last time I paid any vat on pcbs to be honest the total is usually under the £15 limit.
I printed it on self adhesive silver inkjet paper so all of the words and border are actually silver not white. I basically just need to babysit it now until I stop getting any runs or drips and to make sure nothing lands on it. There’s nothing worse than checking on an enclosure the next day and seeing a hair which has landed on the surface before it set. Once I’m happy it can be left alone I’ll let it sit for about a week to cure then drill the envirotex out of the holes.
It’s much less work than when I used to try and clear coat things with some sort of lacquer. My spray jobs also looked a lot worse.
I've attached a couple of progress shots so you can see where I'm at now.
Oh and I just noticed I need to cut the rotary shaft down to size.
When you said, "Once you print your decal just cut it out, stick it on," - how do you stick the decal on the enclosure? And what printer and paper do you use?
https://www.amazon.co.uk/gp/aw/d/B000W4H63S/ref=mp_s_a_1_10?ie=UTF8&qid=1517960945&sr=8-10&pi=AC_SX195_SY281_QL65&keywords=self+adhesive+inkjet+paper&dpPl=1&dpID=31ilrOvq%2B0L&ref=plSrch
The decal on this tape delay is printed on silver paper which gives the purple colour printed over it a nice shimmer.