Yusynth ARP 4072
- Patrick Joericke
It was my first DIY Build - so sorry for the building quality
added a second DIY project 2014 with better quality..
Attention: for bridechamber pcb (SA798) version, the output is wrong. correct:GND to TIP, Signal to GND
BOM parts..
4 x 47k Linear Poti für others (freq, Resonance etc) banzai Alpha 16mm FS 50k lin
2 x 47k Log Poti für Input Level banzai Alpha 16mm FS 50k log
6 x knobs
6 x female 6,3mm mono (switchcraft 112AX or equal.)
pinheaders/connectors or hard wire linking to frontpanel
Building details |
Japanese dual transistors version |
2k2 trimmer
Reichelt Parts ohne Frontplatten poti etc:
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100N poly or c0g | C0G or polyester |
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22uF electrolyt cap | elekrolyt kondensator |
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64Y-50K | for bridechamber pcb use 64W-50K |
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64Y-2K | http://www.reichelt.de/64Y-50K/3/index.html?ACTION=3;ARTICLE=2717;SEARCH=64Y-2,0K for bridechamber pcb use 64W-2,0K http://www.reichelt.de/index.html?ACTION=3;ARTICLE=2700;SEARCH=64W-2,0K |
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2x Ferrite instead of 2x 10R |
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Bleed through FIX (high esonance and tracking is better too)
this means unsolder the left leg of R43, solder a wire this leg and connect this wire to the wiper lug of the second potentiometer of the dual-gang pot.
Schematic from Yusynth
how to bugfix: https://diysynth.wiki.dsl-man.de/wiki/spaces/SKM/pages/336101402/How+to+bugfix
non commercial pages, all infos are best can do without warranty, without liability.