JH Living Vocoder [BUILD THREAD]

jhulk · Post by **jhulk** » Tue Feb 16, 2016 7:50 am

ill be using 1% vishay dale rn55 as thats what i have in stock

LektroiD · Post by **LektroiD** » Tue Feb 16, 2016 12:38 pm

nordlead wrote:
LektroiD wrote:Just awaiting caps, before moving on to the taller components...

[img]
Damn you're fast, Rich! Looking great! An it seems the 1N5404 do fit in the new pads now ...

They fit fine with the help of a dremel. You must solder both sides when you do this, as the dremel will strip the inner contact walls of the PCB and the traces leading to them are on both front and back of the PCB.

jhulk · Post by **jhulk** » Thu Feb 18, 2016 8:15 am

ok my work mate in usa is going to order from verical and element14 as they were the cheapest

so should have both usa and uk covered there is about 17 people on board so far ill keep you posted on when they are for delivery

coon · Post by **coon** » Thu Feb 18, 2016 9:42 am

Is there a group buy for pin matrix's as well?

jhulk · Post by **jhulk** » Thu Feb 18, 2016 9:50 am

yes there is its on the phutney clone thread

coon · Post by **coon** » Thu Feb 18, 2016 10:01 am

You are a hero! Thanks

jhulk · Post by **jhulk** » Thu Feb 18, 2016 11:27 am

any one else on the list for the matrix upto 14 so far from both lists

synthdude · Post by **synthdude** » Thu Feb 18, 2016 11:59 am

Im still trying to determine how the matrix is implemented on the vocoder. Cant you use sliders/pots instead? I have to look at the schematics closely. I haven't done that yet. Whats the estimate on the cost for a matrix?

jhulk · Post by **jhulk** » Thu Feb 18, 2016 2:28 pm

caps are ordered will let you know when i receive them i ordered 3000 of each so that if any one else decides to jump in ill have some spare

jhulk · Post by **jhulk** » Thu Feb 18, 2016 2:43 pm

matrix is so you can set the sliders then use the matrix to replot them to other bands

292 euros on 20 orders + tax + postage

tax will be done by usa or europe depending on where there sent there is a person in usa who is going to receive the usa ones and post from there

synthdude · Post by **synthdude** » Thu Feb 18, 2016 2:53 pm

Ok put me on the list for one matrix, or do I have to post on the phutney thread? Does the matrix come with a set of pins?

jhulk · Post by **jhulk** » Thu Feb 18, 2016 3:05 pm

i have to inquire about the pins as we want pins that we can do ourselfs with resistors

i have a request in will let you know but they are separate from matrix price once i get a full quota of people and then i can negotiate a better deal

they did say they would give extra discount if it was paid before making rather than 30 days after invoice

synthdude · Post by **synthdude** » Thu Feb 18, 2016 3:15 pm

jhulk wrote:i have to inquire about the pins as we want pins that we can do ourselfs with resistors

i have a request in will let you know but they are separate from matrix price once i get a full quota of people and then i can negotiate a better deal

they did say they would give extra discount if it was paid before making rather than 30 days after invoice

Do you mean pins with diodes in them? Its doesn't hurt to look into that discount. It might be worth it if its a decent discount.

jhulk · Post by **jhulk** » Thu Feb 18, 2016 3:55 pm

no resistors you can add diodes they sell the diode versions

but we want them before the diodes are mounted

so we can add our own resistors in various sizes which adds to unique modulations

you can add diodes if you want this just stops interactions on the matrix because its not buffered but by not using the diodes

quirky things happen crosstalk and feedbacks that add to creating sounds which is lost when adding diode pins

synthdude · Post by **synthdude** » Thu Feb 18, 2016 4:17 pm

jhulk wrote:no resistors you can add diodes they sell the diode versions

but we want them before the diodes are mounted

so we can add our own resistors in various sizes which adds to unique modulations

you can add diodes if you want this just stops interactions on the matrix because its not buffered but by not using the diodes

quirky things happen crosstalk and feedbacks that add to creating sounds which is lost when adding diode pins

Ah got it! Thanks for explaining that.

papz · Post by **papz** » Thu Feb 18, 2016 4:27 pm

I asked the person I know who has a Vocoder 5000 what's inside the pins and I'll let you know.

I don't visualize yet how the matrix will be wired in this project, but diodes don't work for routing an analogue signal as they allow only a part of it to pass through.

jhulk · Post by **jhulk** » Fri Feb 19, 2016 12:52 pm

half of the .047 caps are on back order

just had an email from element14 there sending the first lot out and the rest will follow as soon as they are in

PWM · Post by **PWM** » Fri Feb 19, 2016 2:23 pm

Off Topic

Where did Lectroid got that amaizing rainbow wire dispenser?! (Picture OP)

papz · Post by **papz** » Fri Feb 19, 2016 2:40 pm

Likely DIY

The Big Ear · Post by **The Big Ear** » Sun Feb 21, 2016 3:47 pm

So i slowly started soldering as I have all the PCB parts at hand now.

Next up to think about is the wiring. I like a plan before starting...
Anyway, I can't see how this thing should be wired. So if anyone has a wiring guide or could share some thoughts, I'd appreciate it.

I might consider a pin matrix, but not sure if this is really needed. Is there a video somewhere showing how this pin matrix is needed? Would some jacks (like on Luka's panel) and a few multiples be possible too?

ABout the sliders, 5K Log's, 40 pieces is also going to be quite expensive, will there be a group buy for these?

Looking forward to what you guys come up with!

Cheers,

Starspawn · Post by **Starspawn** » Sun Feb 21, 2016 4:09 pm

I wont be doing either sliders or pin matrix, going more for the Sennheiser look.
[video][/video]

I suppose you could make a patch bay with 40 jacks, the normalization going to the switch connections from one set of 20 to the other.

But I dunno, if theres CV inputs for each band Id rather do that

The Big Ear · Post by **The Big Ear** » Mon Feb 22, 2016 11:43 am

Starspawn wrote:I wont be doing either sliders or pin matrix, going more for the EMS look.

But I dunno, if theres CV inputs for each band Id rather do that

Yeah Starspawn, looks/sounds good to me.

Now only to find out how the wiring should be done.

Cheers,
ToAd

LektroiD · Post by **LektroiD** » Mon Feb 22, 2016 12:26 pm

The Big Ear wrote:
Starspawn wrote:I wont be doing either sliders or pin matrix, going more for the EMS look.

But I dunno, if theres CV inputs for each band Id rather do that
Yeah Starspawn, looks/sounds good to me.

Now only to find out how the wiring should be done.

Cheers,
ToAd

I've decided upon this layout too, I'd also like to know how this was wired. There's a clue in the individual channel schematics, but doesn't explain everything... Trying to cross reference it with the Sennheiser schematic doesn't really help much either... Hopefully there'll be someone knowledgeable enough here to guide us...

tjs · Post by **tjs** » Mon Feb 22, 2016 1:59 pm

This explains at least a part of the wiring:

http://electro-music.com/forum/viewtopi ... &start=300

"Zthee: What's throwing me off is this
Quote:
*) Connect patchbay outout to cw end of 5k audio taper potentiometer.
Connect wiper to middle pin of connector.
Connect ccw end of Pot to GND.

Right now the middle pin is labled patchbay output: And I'm supposed to connect that to CW end, and then I'm supposed to connect the wiper to the middle pin! "

"From the PCB viewpoint, the lowest pin is the analyzing filter output, and the middle pin is the envelope detector input.

But if you look at the matrix as a module, that can (optionally) be inserted at this break point, the matrix' input signal will come from the lowest pin of the PCB, and the matrix' output will go to the middle pin.

And if you look at channel potentiometer(s) as another (optional) module, the matrix output will go to the potentiometer's "input" (cw end), and the potentiometer's "output" (wiper) then goes to the env detector input (middle pin on PCB).

JH."

papz · Post by **papz** » Tue Feb 23, 2016 4:15 am

The matrix in the EMS Vocoder 5000 uses shorting pins.

MOD WIGGLER

MOD WIGGLER

JH Living Vocoder [BUILD THREAD]