Circuitbenders Forum
Circuitbenders Forum => Circuitbending discussion => DIY Synths => Topic started by: 01012k7 on October 21, 2012, 06:08:06 PM
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I have decided to spilt this project up and this will be the first part which will be complete and this
is called phase 1.
This will look a bit like a Korg ms 20 i guess with black carpet covering and white front panel which i am hoping to be complete before chrismas yes this year..:)
this unit will incorporate the list under this post
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keyboard with 49 keys
Autobend Yusynth
LOGICAL GATES Yusynth
rene ms20 filter
Korg MS50 VCF clone
Synthrotek 8 Step Sequencer Analog waiting on the board
also 2 VCO ,ADSR,LFO,VCA ETC with outputs and other stuff the keyboard will have outputs to control phase 2
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http://www.analog-synth.com (http://www.analog-synth.com)
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keyboard with 49 keys is almost readly for testing but i will be ordering the part for power supply and others bits in about week as i am away most of this week , front panel is being cut and bent to my spec so i just need to paint and drill and put the Grapihics on :)
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just to show you what i been upto i almost built the case and housing for the boards and stuff here some pictures
(http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/th_PICT0066.jpg)
http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/PICT0066.jpg (http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/PICT0066.jpg)
(http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/th_PICT0062.jpg)
http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/PICT0062.jpg (http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/PICT0062.jpg)
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That looks pretty solidly built.
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That looks pretty solidly built.
2mm steel and has been made to my design a friend did the welding and made the extra bits the main part was bent by a sheet metal company.
70% of the drilling is done the case just need a support installed and then coved with the black carpet did the other unit in ,,
i have made some pc boards just waiting on some more acid now 2 left to print then electronics components
then i am h oping to get it working before chrismas ...
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Because at the moment still waiting for parts and for painting to be sorted i am not doing much for a few weeks so i decided to carry on with the first projected which is a single chip synthesizers using the SN76477N here some pictures
(http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/Single%20chip%20synthesizers/IMAG0133.jpg)
(http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/Single%20chip%20synthesizers/PICT0077.jpg)
Single chip synthesizers front panel with switches missings
(http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/Single%20chip%20synthesizers/IMAG0126.jpg)
Single chip synthesizers PCB
(http://i1243.photobucket.com/albums/gg543/01012k7/Analog%20Synth%20Project/Single%20chip%20synthesizers/IMAG0129.jpg)
Single chip synthesizers Power board with pcb transformer
this project should be done by the end of next weekend
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Looks like a good bit of work. How did you make the PCB?
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Looks like a good bit of work. How did you make the PCB?
i am using press n peel system at the moment i am also using for software PCB Wizard i found it easy to use but better software out there here i video Printed Circuit Board (home made) (http://www.youtube.com/watch?v=8_sgMxT09Uw#ws)
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here are some updates for the single chip synth i got it woring to day but have some things i need to sort out like power supply need to check bridge rectifier and transformer one of them is coursing the problem.. also some switches to check and some pots need to be sorted ..here some video this is my first video i made and i have only a basic camera also this the first project i have 95% completed and working :)
PICT0084 (http://www.youtube.com/watch?v=n_5lDKdPzK8#)
PICT0085 (http://www.youtube.com/watch?v=yD8K5oY0yh0#)
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After a few problems and a freind trying to sort out the switchs on the mix section of the chip i found and update and sorted and now it works ... i have also updated the power supply as i had so much mains hum and i found it was the transformer so decided was easyer to just wire it so it runs of a 9v adaptor and works great .. also i add some graphic
here a update the project is done now looking at bending it later ...
(http://i1243.photobucket.com/albums/gg543/01012k7/PICT0088a.jpg)
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just some updates i got the main front panel painted and put the grapics on last night i have lots to do..
(http://i1243.photobucket.com/albums/gg543/01012k7/IMAG0176a_zps20d55e7a.jpg)
still have some cuttuing as the keyboard pcb is making the keyboards keys not returning at the end but should only be an hours work ;D
li have almost built all the boards so looking like it should be built in about 4 weeks ..:)
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here some updates some sockets are missing also 1 or 2 pots and some switches need to be change
(http://i1243.photobucket.com/albums/gg543/01012k7/PICT0097_zpsa709350a.jpg)
power supply
(http://i1243.photobucket.com/albums/gg543/01012k7/PICT0101a_zps52443280.jpg)