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[BUILD] L-1 Vocoder build thread
MUFF WIGGLER Forum Index -> Music Tech DIY Goto page Previous  1, 2, 3, 4 ... 11, 12, 13  Next [all]
Author [BUILD] L-1 Vocoder build thread
L-1
Quote:
6.3mm diameter, which looks like it might be tight in some areas.


I've used 6.3mm. Look at the photos, they fit good.

Quote:
i cant source decent m2.5 screws at mouser and standoff selection is very small.


Why 2.5 mm? My boards are adapted for 3mm!

Spacers are here: http://ru.farnell.com/ettinger/05-13-123/spacer-m3x12-ni/dp/1466845
consumed
excellent, thanks--i updated the controlboard BOM with m3 spacer hardware (controlboard and filterboard).
NS4W
thanks for doing the dirty work consumed thumbs up
consumed
regarding the 3 dpdt switches: i really hate to add another supplier to the list
however, these are reasonable and in-stock
im open to suggestion if anyone can come up with a proper submini toggle at mouser
(stock is impossibly low for most of mouser's dpdt subminis like nkk B22A1P)

digikey.com
EG2456-ND
200MDP1T1B1M2QEH

http://www.digikey.com/product-detail/en/200MDP1T1B1M2QEH/EG2456-ND/37 8925

digikey also carry a correct size 3300uF cap, so maybe this will work out:

1189-1056-ND
10PX3300MEFC10X20
http://www.digikey.com/product-search/en?x=16&y=12&lang=en&site=us&Key Words=10PX3300MEFC10X20
L-1
These switches from Smallbear will fit http://www.smallbearelec.com/servlet/Detail?no=43


3300uF capacitor. I think 6.3V is possible. A lot of these 10mm dia. in Mouser stock.
http://eu.mouser.com/Passive-Components/Capacitors/Aluminum-Electrolyt ic-Capacitors/Aluminum-Electrolytic-Capacitors-Leaded/_/N-75hqw?P=1z0w rk0Z1z0z7l5Z1z0wxctZ1yzh23s

Audio grade one http://eu.mouser.com/ProductDetail/Nichicon/UKW0J332MPD/?qs=sGAEpiMZZM tZ1n0r9vR22e0BBN1kF1oiRy0XynwpkT0%3d
consumed
ok, ive added to the mouser controlboard bom

3 jacks (16pj138)
3 dpdt toggles (10TC415) (OR http://www.smallbearelec.com/servlet/Detail?no=43)
1 3300uF 6.3v electrolytic
1 90-degree power header
1 xlr connector
decaying.sine
I love you guys.
L-1
About IC sockets.
When I've completed test unit assembly I turned it on but it produced only loud distorted scream. I've disconnected all filterbank boards to locate the problem. I connected them back by one and found what board works wrong. Then I removed 4301 chips from this board and started to install them by one to find which channel. But when I've installed all them back board started works correct. So conclusion is - somewhere in IC socket was bad contact. Be accurate with it.
L-1
I've updated vocoder's partlists with links to Farnell.

http://l-1.su/images/vocoder/Vocoder_control_board_partslist.pdf


http://l-1.su/images/vocoder/Vocoder_filterbank_board_partslist.pdf


applause
Reese P. Dubin
PCBs arrived this morning.
They look great, cant wait to get started.
On that note, I have had some differing experiences with gold plated boards, and am wondering if there is anything specific to consider with these? Sometimes they flow solder very easy, and others have been downright resistant.

AWESOME
L-1
The main thing why I make a gold platted boards is - I know all my customers will touch these boards, I want to make these feelings pleasant.
Like Saddam, his AK-47 was from gold, and every thing hi touched must be gold. I want my customers fill theirselves like an king.
But, it's true, gold platted boards don't oxidize and gold is the best conductor.

Most important thing of the Vocoder assembly is to join to THAT chips group buy. These are most expensive things in the Vocoder.
Reese P. Dubin
Best ever answer imaginable.
I plan on having this ready to turn on the day the chips arrive from the buy.
L-1
It was a joke, hope you understand me correct.
Really don't know some my exressions in eanglish may be hard to understand. If so, just ask me don't make any conclusion.

And before you make any conclusion, just walking in my shoos.. (DM)

I can express myself in russian like an very proffessional writter, but I want be here with you., please understand me.
wmonk
L-1 wrote:
But, it's true, gold platted boards don't oxidize and gold is the best conductor.

Silver is a better conductor.
http://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity

But I agree on the oxidation. 8_)
Reese P. Dubin
Oh I HAVE been touching them for sure. They are beautiful and so very well laid out and considered.
vstace
Anyone plan on building this for non-modular, i.e., stand-alone? I don't have a modular rig, but man it looks sweet. I'd imagine once you sort out the AC connector it's just a matter of covering the chassis.
Paradigm X
Thats the way i would do it ... but sadly cant afford at the moment..

cry waah
L-1
vstace wrote:
Anyone plan on building this for non-modular, i.e., stand-alone? I don't have a modular rig, but man it looks sweet. I'd imagine once you sort out the AC connector it's just a matter of covering the chassis.


I would recommend better to build 3U 1 row Euro case with power supply at least 2A and to install there Vocoder together with a couple of oscillators and filters, and maybe MIDI-CV.
Reese P. Dubin
Mine will be a standalone.
Bananas with switches to break the band connections.
Possibility of including my unfinished JH frequency shifter as well.

Hope the THAT group buy goes down soon, I will have the PCBs at about 95% tomorrow.
astroschnautzer
Are there farnell or smallbear links for the c-1 caps or do I have to buy these from mouser?
L-1
astroschnautzer wrote:
Are there farnell or smallbear links for the c-1 caps or do I have to buy these from mouser?


These C1 and C2 caps are film 5mm spacing. I prefer Panasonics from Smallbear and Banzaimusic but other with correct size are possible.
Greenies chinese values pack from Ebay is the cheapest solution, I've used on the prototype, work good. Values under 47n are fit by size.
astroschnautzer
Ok, think I'll do the mouser order then...
raisinbag
OK I'm looking at putting my parts order together soon and have a question about mouser carts. How do I incorporate all of the carts into one order, where I can pull out certain items that I don't need? I guess I could look at each cart, make my own new project, then input just the items I need, but that seems like a cluster fuck. There must be a way to start a new project, import each of the carts/ projects that are linked at the start of this thread, then go through the whole big ass order and pluck out shit I already have?

Thanks and sorry for the mouser help on a vocoder thread

EDIT: doesn't mouser sell SMD tempcos? I had a number for them at one point, I just can't find them.
decaying.sine
I think add stuff to cart that you want (make sure you are logged in). When you want to merge with another project, go to your project list and click "order cart." This sticks it in the cart with your other stuff. You can resave as new project or you can add more projects to the cart by going to another and "order cart" for that one.
L-1
Quote:
EDIT: doesn't mouser sell SMD tempcos? I had a number for them at one point, I just can't find them.


Smallbear has.
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