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Tim Servo
Joined: Jul 16, 2006
Posts: 924
Location: Silicon Valley
Audio files: 11
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 Posted: Thu Sep 26, 2013 10:19 am Post subject:
The LFX experimental LFO (8K LFO and Weird Waveshapers) |
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Hey Isak,
Yes, that Rev 02 schematic is the latest and greatest (the only change I've made so far is to update the value of R5).
Happy building!
Tim (born with a soldering iron in my hand... my Mom never let me forget that) Servo |
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isak
Joined: Dec 13, 2009
Posts: 847
Location: Israel
Audio files: 18
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| Posted: Thu Sep 26, 2013 3:02 pm Post subject:
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| Quote: | | (the only change I've made so far is to update the value of R5) |
are you sure?
asking cause looking at your old 8k LFO scheme i see that C1 changed from 3300pF to 0.01uF.
and few resistors have changed as well.
i'm talking about this scheme..
i also want to add your cool sync scheme that i got from my other post.
is this the right way to do it?
one last thing...
can i output gate from the 8k LFO to gate say...ENV and to be able to control the gate speed with the rate pot?
if yes, please tell me from where?
thanks again Tim.
| Quote: | | Tim (born with a soldering iron in my hand... my Mom never let me forget that) Servo |
you killed me with that one 
EDIT:
if i got you correctly the VER2 is a summing of the next 3 schemes, right?
the waveshapes i saw in your Tube clip was amazing!!
i want them so much 
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Tim Servo
Joined: Jul 16, 2006
Posts: 924
Location: Silicon Valley
Audio files: 11
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| Posted: Thu Sep 26, 2013 4:26 pm Post subject:
The LFX experimental LFO (8K LFO and Weird Waveshapers) |
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Yeah, I may be a little confused on the changes, but the Rev 02 is definitely the latest one. And yes, the LFX is a hybrid of the TSQ and 2x TSW waveshapers. I highly recommend adding an LED monitor (with transistor or op-amp buffer) to get some idea of what the output is doing. Also, you have the sync circuit hooked up correctly. Looks like you've got some fun building ahead of you!
Tim (building an LFO is a lovely way to spend a weekend) Servo |
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isak
Joined: Dec 13, 2009
Posts: 847
Location: Israel
Audio files: 18
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| Posted: Fri Sep 27, 2013 12:21 am Post subject:
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I will want to add a led indicator, I will come home later on and post the led scheme I have.
About the gate out to trigger ENV etc...is it possible to have?
cheers
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isak
Joined: Dec 13, 2009
Posts: 847
Location: Israel
Audio files: 18
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flab
Joined: Feb 13, 2012
Posts: 65
Location: Glasgow
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| Posted: Sat Oct 12, 2013 4:56 am Post subject:
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well, i think im really interesting to this as a vclfo ,with the sync part , same think you are looking for Isak , how are you going to apply a rate pot to it thought ?
cheers |
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isak
Joined: Dec 13, 2009
Posts: 847
Location: Israel
Audio files: 18
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| Posted: Sat Oct 12, 2013 10:07 am Post subject:
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Well, I did few mods to the attached layout here with illustrator.
Didn't build this yet, the rate is like the original I guess Or maybe remove the fine tune? Don't know yet.
I changed the timing cap to 2 timing caps, dont remember the values, I think the values are 0.1uF and 0.001uF with a switch for high and low speed.
I'll upload the scheme and the modified board as soon as I can, not at home at the moment.
The mods are the add on led and 2 timing caps.
Cheers.
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flab
Joined: Feb 13, 2012
Posts: 65
Location: Glasgow
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| Posted: Wed Oct 16, 2013 10:39 am Post subject:
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I built that yesterday , beautiful
thank you Tim
cheers |
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isak
Joined: Dec 13, 2009
Posts: 847
Location: Israel
Audio files: 18
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| Posted: Wed Oct 16, 2013 10:45 am Post subject:
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Hi flab.
Happy to hear you got this thing working
What did you eventually did with the fine tune/tune?
Did you used one of the layouts that attached to this post or directly from the scheme?
Cheers
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flab
Joined: Feb 13, 2012
Posts: 65
Location: Glasgow
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| Posted: Wed Oct 16, 2013 11:09 am Post subject:
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hiya,
well i kept both of them fine tune / tune ,
i added the sunc , a switch at R36
added three led indicators
also i think to place an 1M pot at the R1 so i can play with the tri offset ,
if am not mistaken, as long as is at my breadboard , |
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flab
Joined: Feb 13, 2012
Posts: 65
Location: Glasgow
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| Posted: Thu Oct 17, 2013 3:34 am Post subject:
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well what i said about R1 yesterday is all lies ,obviously is not working ,im sorry R1
also there is a think with the sync , can i change the 1n 914 diode with sth else ? like a equivalent one ? i think thats the think about my sync |
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feggster
Joined: Sep 12, 2011
Posts: 52
Location: uk
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Alfredo
Joined: Nov 20, 2008
Posts: 52
Location: Spain
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| Posted: Sun Dec 16, 2018 11:43 am Post subject:
FINAL DESIGN PCB WITH WAVESHAPERS AND SYNC |
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Hello! So there´s any final pcb design with Waveshapers and Sync function?
Thanks! |
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