Search found 33 matches

Sorry I was tired yesterday,
They both measure from 0 - 7.6 when turned.
But neither affect the rising ramp from pin 14
I’ll take some more measurements when I’m home. Thanks Ryan

Thanks for clearing that up mate. I feel like I’m learning more everyday with you guys

Measuring the power directly as it comes in pre 10ohm resistors is 12v, directly after the resistors I’m reading 11.83v. Please excuse my naivety but would this be normal?

So I’m getting 7.6volts from both trimmers

Pin14 of ic 2

Haha, never. I’ll only learn by perseverance

No luck with the trimmer. I’m really at a loss now

Ahh ok, I thought it would be a long shot. I will try your suggestions this evening. I’ll let you know the outcome, hopefully it will be good news👍
Many thanks Ryan

Thanks for the detailed response. I have also plugged it in to a 15v supply with the same outcome. I have also replaced the bc557 to see if it helped as originally I used a 557c when it is specified 5 ...

Here is the scope set to DC. As I mentioned I’m very new to this so still not 100% sure how the read these things properly. Thanks for your help though mate

Thanks mate I was thinking Somthing along those lines, I’m quite new to all of this, especially using a scope, I will change the setting to dc when I’m home and take another reading. What would I ...

Oh and I should add that I have been through the other posts on the forum and did spot your R17 suggestion, which fixed my initial problem of an irregular saw. So thanks for that one mate. I may have ...

Here is a (cheap) scope image from pin 14 of ic 2, same reading as pin 7.
I’m only getting 20% of the duty cycle of the pulse too.

Thanks for the reply. I am using a Soundtronics pcb that has two layers so there is no need to solder the bridges. I have tried everything I can think of. Funny thing is that the vco uses an almost ...

I have the exact same issues as this, does anyone know the solutions at all yet? I have replaced all ic’s, transistors, caps. No change. My scope images are exactly the same as these. I am powering ...

Hi there, was there ever a solution to this problem? As I have a similar issue in that the triangle is a uniform saw which also resultis in a weird sine. I have a good saw and square, so that would le ...

I’m at work at the moment but I’ll let you know what I used when I’m home

Ahh I see what you mean, those are ferrite beads

Directly from +/-12v goes into a 100nanofarad capacitor that has a red line around it. Is that what you are referring to?

I’m pretty sure us2 is a generic name for the power connector

I don’t have the layout infront of me but at a guess I would say they are the trigger and accent outs, I will take a look when I’m home

Definitely, probably just a quick modification in eagle

You will need a +/15v power supply. And a computer with midi

You sir are a genius

Hi, this is an amazing project, and the fact that you have made your hard work available to the public is just pure class!
I’m new to all of the synth building but I do love it and I’m learning e ...

Author	Message
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Fri Nov 22, 2019 11:12 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Sorry I was tired yesterday, They both measure from 0 - 7.6 when turned. But neither affect the rising ramp from pin 14 I’ll take some more measurements when I’m home. Thanks Ryan
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Fri Nov 22, 2019 12:35 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Thanks for clearing that up mate. I feel like I’m learning more everyday with you guys
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Thu Nov 21, 2019 2:21 pm Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Measuring the power directly as it comes in pre 10ohm resistors is 12v, directly after the resistors I’m reading 11.83v. Please excuse my naivety but would this be normal?
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Thu Nov 21, 2019 2:03 pm Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	So I’m getting 7.6volts from both trimmers
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Thu Nov 21, 2019 9:14 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Pin14 of ic 2
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Thu Nov 21, 2019 6:48 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Haha, never. I’ll only learn by perseverance
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Thu Nov 21, 2019 12:38 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	No luck with the trimmer. I’m really at a loss now
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Wed Nov 20, 2019 6:36 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Ahh ok, I thought it would be a long shot. I will try your suggestions this evening. I’ll let you know the outcome, hopefully it will be good news👍 Many thanks Ryan
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Wed Nov 20, 2019 5:47 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Thanks for the detailed response. I have also plugged it in to a 15v supply with the same outcome. I have also replaced the bc557 to see if it helped as originally I used a 557c when it is specified 5 ...
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Tue Nov 19, 2019 11:53 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Here is the scope set to DC. As I mentioned I’m very new to this so still not 100% sure how the read these things properly. Thanks for your help though mate
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Tue Nov 19, 2019 10:13 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Thanks mate I was thinking Somthing along those lines, I’m quite new to all of this, especially using a scope, I will change the setting to dc when I’m home and take another reading. What would I ...
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Mon Nov 18, 2019 2:54 pm Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Oh and I should add that I have been through the other posts on the forum and did spot your R17 suggestion, which fixed my initial problem of an irregular saw. So thanks for that one mate. I may have ...
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Mon Nov 18, 2019 1:44 pm Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Here is a (cheap) scope image from pin 14 of ic 2, same reading as pin 7. I’m only getting 20% of the duty cycle of the pulse too.
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Mon Nov 18, 2019 9:51 am Subject: LFO 2 no triangle or sine waves Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Thanks for the reply. I am using a Soundtronics pcb that has two layers so there is no need to solder the bridges. I have tried everything I can think of. Funny thing is that the vco uses an almost ...
Topic: Need some help LFO trimming (scope photos included)
RyBowk Replies: 3 Views: 6986	Posted: Mon Nov 18, 2019 3:46 am Subject: Need some help LFO trimming (scope photos included) Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 3 Views: 6986	I have the exact same issues as this, does anyone know the solutions at all yet? I have replaced all ic’s, transistors, caps. No change. My scope images are exactly the same as these. I am powering ...
Topic: LFO 2 no triangle or sine waves
RyBowk Replies: 35 Views: 20228	Posted: Sat Nov 16, 2019 6:56 am Subject: Triangle = saw Forum: DIY Hardware and Software » YuSynth
RyBowk Replies: 35 Views: 20228	Hi there, was there ever a solution to this problem? As I have a similar issue in that the triangle is a uniform saw which also resultis in a weird sine. I have a good saw and square, so that would le ...
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Thu Mar 14, 2019 12:18 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	I’m at work at the moment but I’ll let you know what I used when I’m home
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Wed Mar 13, 2019 11:57 pm Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	Ahh I see what you mean, those are ferrite beads
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Wed Mar 13, 2019 10:34 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	Directly from +/-12v goes into a 100nanofarad capacitor that has a red line around it. Is that what you are referring to?
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Wed Mar 13, 2019 8:23 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	I’m pretty sure us2 is a generic name for the power connector
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Wed Mar 13, 2019 5:28 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	I don’t have the layout infront of me but at a guess I would say they are the trigger and accent outs, I will take a look when I’m home
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Tue Mar 12, 2019 3:25 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	Definitely, probably just a quick modification in eagle
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Tue Mar 12, 2019 12:04 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	You will need a +/15v power supply. And a computer with midi
Topic: TR-808 Voice STRIP Boards...
RyBowk Replies: 277 Views: 476197	Posted: Mon Feb 11, 2019 2:39 pm Subject: TR-808 Voice STRIP Boards... Forum: DIY Hardware and Software
RyBowk Replies: 277 Views: 476197	You sir are a genius
Topic: 808 Bass Drum Clone Eagle PCB & CNC Gcode
RyBowk Replies: 55 Views: 62335	Posted: Thu Jan 10, 2019 5:09 am Subject: 808 Bass Drum Clone Eagle PCB & CNC Gcode Forum: DIY Hardware and Software » The layout factory
RyBowk Replies: 55 Views: 62335	Hi, this is an amazing project, and the fact that you have made your hard work available to the public is just pure class! I’m new to all of the synth building but I do love it and I’m learning e ...