Search found 18 matches

I went by the orientation on the full color 3d render of the top of the board (stupid) instead of the picture of the top PCB silkscreen. So I'm pretty sure I soldered all the diodes BACKWARDS!!!

Is ...

UPDATE!

I got it working, with 5v triggers actually, It started working after I installed a new power supply i built based on LM337/317 (my old one was base on 7915/7815)

This new power supply ...

Does anyone have this working properly?

I am using a 5v trigger, I have also used a 5v gate, neither produces any result. Should I try a different tranny or something? Should I try a different value for the off-board capacitor?

Trigger is 5v

I sent Yusynth a PM yesterday, hopefully we will hear from him soon!

I am using a gate from my midibox seq. This gate works fine for my yusynth adsr's and my yusynth sample and hold clock, so I don't think the gate is the problem... but I'm open to any suggestions!

I built the LFO2 and it works great except the sync input seems to have no effect at all. I am using the recommended tranny (BS170), and I have it oriented as shown in the component overlay on the pro ...

ok,

I got the filter working properly, it was bad wiring....

anyways, I tried a 100k linear pot with a 100k resistor across the two lugs that are wired to the board, but It seems like there is l ...

Hello,

I could not find an Antilog pot at my supplier so I used a linear pot instead. The resonance pot has no effect at all, the filter will not self-oscillate, etc. - I have tried adjusting the t ...

The regulators are there to provide a reference voltage of 14.2v (this is what you get after voltage drop) so use that figure when you calculate

Hello,

I have built a YUSYNTH ADSR V2 and I really enjoy using this module to drive my YUSYNTH VCA. I need another envelope to control my filters, and I came across some designs that have a "L ...

I am using a power supply I built myself. It is actually two isolated power supplies on one board, the smaller one is driven by a smaller (and seperate) transformer. I have actually thought about usin ...

That's ok,

I really appreciate your help with this. I will try to order some different ones soon.

Thanks!

I replaced the 7915L on the firts VCO like you suggested, but the problem remained. I first used a generic "multicomp" brand, and then replaced it with one from NTE which still did not work. ...

I built another one of these modules, this time I made the lm394 version. I get the same strange behavior. After more investigation I learned that it works fine if I apply power to the positve rail fi ...

Thanks Sebo, I'll try this and get back to you.

Hello,

I recently completed a YUSYNTH VCO. When I turn on my system, the VCO does not work, I measure less than 1 volt on the pins that should be -14.3.

If I short out the negative rail momenta ...

Author	Message
Topic: Did I REALLY just solder 18 diodes backwards on wavefolder!?
smokestacksproductions Replies: 3 Views: 3828	Posted: Sat Jan 26, 2013 10:03 pm Subject: Did I REALLY just solder 18 diodes backwards on wavefolder!? Subject description: Diagrams contradict eachother Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 3 Views: 3828	I went by the orientation on the full color 3d render of the top of the board (stupid) instead of the picture of the top PCB silkscreen. So I'm pretty sure I soldered all the diodes BACKWARDS!!! Is ...
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Thu Jan 24, 2013 12:08 pm Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	UPDATE! I got it working, with 5v triggers actually, It started working after I installed a new power supply i built based on LM337/317 (my old one was base on 7915/7815) This new power supply ...
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Thu Jan 03, 2013 10:15 am Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	Does anyone have this working properly?
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Wed Jan 02, 2013 12:03 pm Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	I am using a 5v trigger, I have also used a 5v gate, neither produces any result. Should I try a different tranny or something? Should I try a different value for the off-board capacitor?
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Sun Dec 30, 2012 6:55 pm Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	Trigger is 5v
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Fri Dec 28, 2012 6:56 pm Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	I sent Yusynth a PM yesterday, hopefully we will hear from him soon!
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Thu Dec 27, 2012 9:59 am Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	I am using a gate from my midibox seq. This gate works fine for my yusynth adsr's and my yusynth sample and hold clock, so I don't think the gate is the problem... but I'm open to any suggestions!
Topic: VC LFO2 will not sync/retrigger
smokestacksproductions Replies: 13 Views: 9135	Posted: Tue Dec 25, 2012 5:29 pm Subject: VC LFO2 will not sync/retrigger Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 13 Views: 9135	I built the LFO2 and it works great except the sync input seems to have no effect at all. I am using the recommended tranny (BS170), and I have it oriented as shown in the component overlay on the pro ...
Topic: Moog Transistor Ladder Filter Resonance not Working
smokestacksproductions Replies: 11 Views: 12720	Posted: Fri Dec 21, 2012 11:14 am Subject: Moog Transistor Ladder Filter Resonance not Working Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 11 Views: 12720	ok, I got the filter working properly, it was bad wiring.... anyways, I tried a 100k linear pot with a 100k resistor across the two lugs that are wired to the board, but It seems like there is l ...
Topic: Moog Transistor Ladder Filter Resonance not Working
smokestacksproductions Replies: 11 Views: 12720	Posted: Sun Dec 16, 2012 10:50 am Subject: Moog Transistor Ladder Filter Resonance not Working Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 11 Views: 12720	Hello, I could not find an Antilog pot at my supplier so I used a linear pot instead. The resonance pot has no effect at all, the filter will not self-oscillate, etc. - I have tried adjusting the t ...
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Fri Oct 26, 2012 2:16 pm Subject: YUSYNTH VCO strange startup behavior Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	The regulators are there to provide a reference voltage of 14.2v (this is what you get after voltage drop) so use that figure when you calculate
Topic: ADSR Loop/retrigger modification?
smokestacksproductions Replies: 4 Views: 5606	Posted: Tue Oct 23, 2012 12:38 pm Subject: ADSR Loop/retrigger modification? Subject description: possible to add this function? Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 4 Views: 5606	Hello, I have built a YUSYNTH ADSR V2 and I really enjoy using this module to drive my YUSYNTH VCA. I need another envelope to control my filters, and I came across some designs that have a "L ...
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Tue Oct 02, 2012 12:03 pm Subject: YUSYNTH VCO strange startup behavior Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	I am using a power supply I built myself. It is actually two isolated power supplies on one board, the smaller one is driven by a smaller (and seperate) transformer. I have actually thought about usin ...
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Fri Sep 28, 2012 1:49 pm Subject: YUSYNTH VCO strange startup behavior Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	That's ok, I really appreciate your help with this. I will try to order some different ones soon. Thanks!
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Fri Sep 28, 2012 1:03 pm Subject: YUSYNTH VCO strange startup behavior Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	I replaced the 7915L on the firts VCO like you suggested, but the problem remained. I first used a generic "multicomp" brand, and then replaced it with one from NTE which still did not work. ...
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Fri Sep 28, 2012 8:12 am Subject: YUSYNTH VCO strange startup behavior Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	I built another one of these modules, this time I made the lm394 version. I get the same strange behavior. After more investigation I learned that it works fine if I apply power to the positve rail fi ...
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Fri Aug 24, 2012 1:00 pm Subject: YUSYNTH VCO strange startup behavior Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	Thanks Sebo, I'll try this and get back to you.
Topic: YUSYNTH VCO strange startup behavior
smokestacksproductions Replies: 32 Views: 22823	Posted: Fri Aug 24, 2012 8:23 am Subject: YUSYNTH VCO strange startup behavior Subject description: I have to momentarily short out the negative rail to get the VCO to work Forum: DIY Hardware and Software » YuSynth
smokestacksproductions Replies: 32 Views: 22823	Hello, I recently completed a YUSYNTH VCO. When I turn on my system, the VCO does not work, I measure less than 1 volt on the pins that should be -14.3. If I short out the negative rail momenta ...