PCBs for Thomas Henry's X-4046 VCO

fonik · Posted: Tue May 24, 2011 1:07 pm Post subject:

the wattage is a max value that the trimmer will survive. it is about the heat they can dissipate without burning Wink

so with 1/2W you are double good Very Happy

raoulblues · Joined: Oct 31, 2007 Posts: 16 Location: paris france

Hi Mattias!

The PCBs arrived in the mail
merci beaucoup

marvkaye · Joined: Mar 14, 2011 Posts: 225 Location: Fla

Got my PCBs today, they look great!! Can't wait to get started on them. Thanks for making this happen, Matthias and Scott.

wmonk · Posted: Fri May 27, 2011 4:35 pm Post subject:

Got the PCBs today! Thanks a lot Matthias.
And big applause for Thomas and Scott too! salut

Danno Gee Ray · Joined: Sep 25, 2005 Posts: 1351 Location: Telford, PA USA

Got my boards the other day as well.

SubG (deactivated) · Joined: Oct 09, 2009 Posts: 70

GUYS DO NOT BUY ANY PARTS FROM utsource

I did buy plenty of ssm 2210s for this vco from them .none work they are all FAKE.

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rosch · Joined: Oct 03, 2009 Posts: 164 Location: germany

have you contacted them about it? i mean, do they refuse to refund you?

loydb · Joined: Feb 04, 2010 Posts: 393 Location: Providence, RI

I got 50 2210s from utsource a year or so ago and they're fine (so far!).

SubG (deactivated) · Joined: Oct 09, 2009 Posts: 70

rosch · Joined: Oct 03, 2009 Posts: 164 Location: germany

i believe it was in the Jürgen Haible section, i read about fake MN3005 from utsource, which they refunded in the end (i haven't looked it up again in detail now)
let's hope you get that sorted.

fonik · Posted: Mon May 30, 2011 3:30 am Post subject:

there is an error in the BOM of my documentation. R2 has to be 390R of course!

i corrected building docs for the fonitronik PCBs can now be found here:
TH X-4046 VCO doc 5/30/2011 (rev2)

tehskull · Posted: Tue May 31, 2011 6:54 am Post subject:

Received 4 nice red shiny PCBs today Smile

Thank you!

TheAncientOne · Joined: Dec 26, 2006 Posts: 144 Location: United Kingdom

Got mine today too - thanks Fonik, they look really nice.

I spotted the R2 error, and was about to post, but as usual, you are way ahead of me!

fonik · Posted: Fri Jun 03, 2011 1:00 am Post subject:

errors in the BOM is kind of tradition, isn't it? i think i inherited from ele4music - this is where i come from... Laughing

sompost · Joined: Aug 17, 2010 Posts: 58 Location: Switzerland

These PCBs look awesome! You really don't expect me to spoil these works of art by soldering stuff on them, do you. Do you?? Oh, well...

Luckily, I have other projects to complete, so there's still ample time to admire them.

Danke, Matthias, für prompte Lieferung!

SubG (deactivated) · Joined: Oct 09, 2009 Posts: 70

fonik · Posted: Wed Jun 08, 2011 2:30 am Post subject:

SubG (deactivated) · Joined: Oct 09, 2009 Posts: 70

Something else,is it correct that the use of those expensive multi-turn trimmers is a waste of money?

(there is still shifts in the waves when you change frequency after trimming?)

fonik · Posted: Wed Jun 08, 2011 10:04 am Post subject:

bubzy · Posted: Fri Jun 10, 2011 4:42 pm Post subject:

i've built mine, but im getting some odd behaviour. it only oscillates when the coarse pot is turned up real high, and as soon as it is turned back down again afterwards the vco stops oscillating. not sure what i've done wrong here, probably best to sleep on it (the idea not the pcb) and try again tomorrow Very Happy

hop.sing · Posted: Sat Jun 11, 2011 11:51 am Post subject:

Hi
This is my first post on that forum, hello!
I bought those boards at the muffwiggler forum and built them already.
I did the dual version and both units worked alright from the start.
I got two different x-4046 versions from different suppliers (just in case).
One is a motorola, on the other one I could not read the print.
One motorola could not be tuned right, but the others of the same batch worked. Strange.
The unreadable ones where ok.
Both are tunable over at least 6 octaves, thats more than I will ever need.
The sound of the units is great, I have a planB model 15 and a doepfer a-110 to compare and the x-4046 is my favorit already.
The sync sounds incredible, and the pure osc sound (without any modulation) is not as bland as the PlanB and more precise than the a-110.
Thanks for that great project.
Tobias

SubG (deactivated) · Joined: Oct 09, 2009 Posts: 70

fonik · Posted: Mon Jun 13, 2011 7:52 am Post subject:

that's what we wantd to hear!
and thanks go to thomas henry!

crashlander42 · Joined: Oct 21, 2006 Posts: 292 Location: Orlando, FL (US)

Do you still have any of these PCB's for sale?

Bogus Noise · Joined: Jun 03, 2009 Posts: 65 Location: Sheffield

I'd be up for buying a couple of these PCBs as well if you do another run. Smile