Pics via Ken MacBeth on FacebookTop: "I just etched the Jackfield PCB for the Mk1 Vortex proto #8- it takes a nice picture! Now to drill the darned thing!"
2nd: "This photo shows the 8th prototype in the micromac/Mk1 VORTEX unit- no rotaries fitted- but this is the essential sound engine that I intend to try out shortly. It is the 'cleaned up' version of prototype #7 that you may have seen demonstrated in videos that I did!n Please see other pic for Filter/VCA detail!"
3rd: "An important part of the VORTEX tone and character come from the filter and VCA- the USE of a selected CA3046, BC549Cs and a CA3080 based VCA make this synth have the character of the Multimoog/Source like sound"bottom: "Here's a pic, front and rear, of the Mk1 Vortex Jackfield (prototype)- things finalize tommorow for the whole unit!"
macbethstudiosystems.com






































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