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Project

Projecttitel: Yusynth Arp4072 Filter

Status: FINISHED

Startdate: 2010

Duedate: 2010

Manufacture link: http://yusynth.net/Modular/EN/ARPVCF/index.html


It was my first DIY Build - so sorry for the building quality (wink)

added a second DIY project 2014 with better quality..

last update: jun 2014


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
referencevaluequantity
U1LM3900N1
U2TL0741
Q1 to Q6
or Q1 to Q12
2SA798
either 2N3906 or BC557 matched by pairs (caution the pin out is different, see layouts above)
6
or 12
R1,R210 ohms 5% - or 2x ferrite (better)2
R8,R10*,R11*,R15*,R16*,R20*,R21*,R25*,R26*220 ohms * matched to 1%
5% otherwise
9
R7,R9*,R14*,R19*,R24*,R42,R461k * matched to 1%
5% otherwise
7
R12*,R13*,R17*,R18*,R22*,R23*,R27*,R28*,
R29,R35,R36,R37,R38,R43
10k * matched to 1%
5% otherwise
14
R4415k 5%1
R40,R4127k 5%2
R4533k 5%1
R3,R4,R5,R6,R30,R31,R32,R34,R39100k 5%9
R33150k1
C3,C4,C5,C6470p matched to 1% ( i use Glimmercaps they have 2%)4
C7,C8100n2
C1,C2,C9,C1022µF 35V4
T22k2 10 turns trimmer  3296w series for bridechamber pcb, otherwise Y1
T147k 10 turns trimmer  3296w series for bridechamber pcb, otherwise Y
1
P1,P247k log potentiometer2
P13,P4,P5,P647k lin potentiomter4
Jk1,Jk2,Jk3,Jk4,Jk5,Jk6female jack sockets6

 

2k2 trimmer

 

 Reichelt Parts ohne Frontplatten poti etc:

 

 

 

 

Schematic from Yusynth

 

 

 

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