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  Topic: for sale : AM8040 VCF PCB + HM2040 chip
warpboy

Replies: 0
Views: 3890

Post Posted: Tue Aug 14, 2018 6:37 am    Subject: for sale : AM8040 VCF PCB + HM2040 chip
Forum:  Wanted, For Sale, Opportunities and Requests » Parts and Components
Hello,
I have an AM8040 vcf pcb for sale. I started this filter but never finished ...
It comes with the HM2040 (Hearn Morley has built some really good equivalent of old chips like the SSM2040 in ...
  Topic: sound lab mini synth : AR generator & noise gen not working
warpboy

Replies: 5
Views: 3233

Post Posted: Fri Oct 05, 2012 9:14 am    Subject: sound lab mini synth : AR generator & noise gen not working
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Hello,
I'm working on the AR generator.
I can use the manual gate/trig only if the 2n3904 (QCool isn't soldered on the pcb (of course, that means I can't use an external gate in)

I've changed all t ...
  Topic: sound lab mini synth : AR generator & noise gen not working
warpboy

Replies: 5
Views: 3233

Post Posted: Wed Sep 12, 2012 11:10 am    Subject: sound lab mini synth : AR generator & noise gen not working
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
I reply to myself Cool :
I've cleaned as much as soldered points on the pcb and the two vcos are back....certainly there was a short between two points...or there is a cold solder that works not all ...
  Topic: sound lab mini synth : AR generator & noise gen not working
warpboy

Replies: 5
Views: 3233

Post Posted: Wed Sep 12, 2012 5:12 am    Subject: sound lab mini synth : AR generator & noise gen not working
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Part III : AR generator works in repeat mode only, but if repeat mode is off and second switch in gate mode I don't read 8/9v between pin 1 of C2 and ground but only 0,56v ???

I changed IC1 Q8, D8 ...
  Topic: sound lab mini synth : AR generator & noise gen not working
warpboy

Replies: 5
Views: 3233

Post Posted: Tue Sep 11, 2012 9:22 am    Subject: sound lab mini synth : AR generator & noise gen not working
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Part II :

I've checked all ICs on the board,if I unplugged IC5 and IC6 the regulators (lm337/317) on the psu are really less hot...but IC5 and IC6 aren't hot when I put them in there sockets.
for ...
  Topic: sound lab mini synth : AR generator & noise gen not working
warpboy

Replies: 5
Views: 3233

Post Posted: Tue Sep 11, 2012 7:06 am    Subject: sound lab mini synth : AR generator & noise gen not working
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
hello,
i'm currently building my mini synth, and I have some problem with :

1. AR generator : for the first test, I don't use external gate.
In trigged mode with repeat OFF, I can read :
. S1 ( ...
  Topic: X-4046 VCO Page is Up
warpboy

Replies: 174
Views: 419433

Post Posted: Fri Sep 23, 2011 6:11 am    Subject: X-4046 VCO Page is Up
Forum:  DIY Hardware and Software » Thomas Henry designs
hello,
I'm currently trying to build 4046 vco with Ryk's layout.
I can see on the schematic many 10nF (2 by IC) but on the part placement I don't see where I've to soldier them....
I joined the sch ...
  Topic: ps3100 V1.0 pcb (no lfo)
warpboy

Replies: 8
Views: 9185

Post Posted: Thu Sep 15, 2011 12:24 pm    Subject: ps3100 V1.0 pcb (no lfo)
Forum:  DIY Hardware and Software » fonik's place
Hello,
here is a copy of the parts placement with 2 modifications.
I've built the LPG too, really nice, it's a piece to built Cool

Thank you Fonik Wink
  Topic: ps3100 V1.0 pcb (no lfo)
warpboy

Replies: 8
Views: 9185

Post Posted: Tue Sep 13, 2011 12:15 am    Subject: ps3100 V1.0 pcb (no lfo)
Forum:  DIY Hardware and Software » fonik's place
hello,


thank you Fonik, I'll adjust the trimmers today.

from what you are saying i understand that the BOM is wrong AND that there are traces missing on the layout (cathodes to GND)? sorry for ...
  Topic: ps3100 V1.0 pcb (no lfo)
warpboy

Replies: 8
Views: 9185

Post Posted: Mon Sep 12, 2011 12:28 pm    Subject: ps3100 V1.0 pcb (no lfo)
Forum:  DIY Hardware and Software » fonik's place
hello,
finally it works...
I've found 2 mistakes R9,R10 in parts list 270K and 10K in the schematic. the right value is 10K ( I've looked at the V4 resonator with lfo schematic)
I have added a wir ...
  Topic: ps3100 V1.0 pcb (no lfo)
warpboy

Replies: 8
Views: 9185

Post Posted: Sun Sep 11, 2011 6:31 am    Subject: ps3100 V1.0 pcb (no lfo)
Forum:  DIY Hardware and Software » fonik's place
Hello Fonik,
yes it's a single side pcb with a brigde to add between R24 & R27.
I've joined the schematic.
I'd like to understand how works the vactrols in order to measure at there outputs ( ...
  Topic: ps3100 V1.0 pcb (no lfo)
warpboy

Replies: 8
Views: 9185

Post Posted: Sat Sep 10, 2011 4:49 am    Subject: ps3100 V1.0 pcb (no lfo)
Subject description: doesn't work
Forum:  DIY Hardware and Software » fonik's place
hello,
I'm building the first version pcb designed by Fonik (no lfo).
At this time it doesn't work correctly.
. small problem : less sound when the mix pot is full wet (it may be a resistor value p ...
  Topic: 8038 VCO PCB layout for press'n'peel blue
warpboy

Replies: 57
Views: 114858

Post Posted: Fri Jun 17, 2011 1:18 am    Subject: 8038 VCO PCB layout for press'n'peel blue
Forum:  DIY Hardware and Software » Thomas Henry designs
hello,
thank you Fonik...I'll try Ebay
  Topic: 8038 VCO PCB layout for press'n'peel blue
warpboy

Replies: 57
Views: 114858

Post Posted: Thu Jun 16, 2011 1:34 pm    Subject: 8038 VCO PCB layout for press'n'peel blue
Forum:  DIY Hardware and Software » Thomas Henry designs
Hello,
I'm really interested in building the 8038 vco and I don't know where I can buy this part..
any idea?
Thank you
  Topic: I was thinking about FLOWCODE4 to build a PIC step sequencer
warpboy

Replies: 10
Views: 8841

Post Posted: Wed Nov 24, 2010 1:17 am    Subject: I was thinking about FLOWCODE4 to build a PIC step sequencer
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
hello,

thats of course if you want to do more programming after your sequencer?
exactly locoder ! I'll not stop after buiding my sequencer. I have built a MFOS 16 step seq last summer...now I want ...
  Topic: I was thinking about FLOWCODE4 to build a PIC step sequencer
warpboy

Replies: 10
Views: 8841

Post Posted: Tue Nov 23, 2010 2:50 pm    Subject: I was thinking about FLOWCODE4 to build a PIC step sequencer
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
hello,
Waouh... thank you for all these infos. I'll forget Flowcode, I think this is the first thing to do ( keep money in my pocket=>cool
I'll have a look at AVR components, tinyclr.com and mbed ...
  Topic: I was thinking about FLOWCODE4 to build a PIC step sequencer
warpboy

Replies: 10
Views: 8841

Post Posted: Mon Nov 22, 2010 7:17 am    Subject: I was thinking about FLOWCODE4 to build a PIC step sequencer
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
Hello and thank you for your reply Wink
my real problem is to be a full beginner in programming....

I'm searching for the simpliest way to build my sequencer, I have started looking at ucapps. ...
  Topic: I was thinking about FLOWCODE4 to build a PIC step sequencer
warpboy

Replies: 10
Views: 8841

Post Posted: Mon Nov 22, 2010 1:09 am    Subject: I was thinking about FLOWCODE4 to build a PIC step sequencer
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
Hello,

other informations about the sequencer :

I need only gate signals for each step (no frequency adjust)

I want to use only 16 temporary pushbuttons used for the 4 tracks of the sequencer ...
  Topic: I was thinking about FLOWCODE4 to build a PIC step sequencer
warpboy

Replies: 10
Views: 8841

Post Posted: Sun Nov 21, 2010 1:02 pm    Subject: I was thinking about FLOWCODE4 to build a PIC step sequencer
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
hello,
I whish to design a sequencer with four channels each with 16 steps.
Basically like a drum box sequencer.
I've downloaded a demo of Flowcode for Pic but this version is limited.
I want to b ...
 
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