Project
Projecttitel: Fonitronik TH X-4046
Status: FINISHED
Startdate: 09/2014
Duedate: 12/2014
Manufacture link:
Buildersguide: Rev.1
http://www.modular.fonik.de/pdf/TH_X-4046_VCO.pdf
http://www.thonk.co.uk/shop/fonitronik-th-x-4046-vco/
http://www.synthdiy.fonitronik.de/forum/x4046-VCO_V2
http://electro-music.com/forum/topic-47213.html
http://www.modular.fonik.de/pdf/TH_X-4046_VCO.pdf
So here we go. The most crucial part is the CMOS 4046 phase lock loop
IC itself.
You must not use a Texas Instrument or SGS Microelectronics
branded 4046
, you won’t be able to get the 1V/oct response.
I recommend the following:
NXP HEF4046, National CD4046, Fairchild CD4046, Motorola MC14046,
or On Semiconductor MC14046.
Q1 and Q2 should be matched for better linearity. You could match them
manually, or you could replace them by a super matched pair, i.e. the
LM394
–
if you still have one
only pcbs parts !
| price | |||||
|---|---|---|---|---|---|
| 2 | ferrite | 0,20 | |||
| 2 | 390R | 0,04 | |||
| 4 | 1k | 0,08 | |||
| 1 | 1k8 | 0,02 | |||
| 1 | 2k | 0,02 | |||
| 3 | 2k2 | 0,06 | |||
| 1 | 3k | 0,02 | |||
| 1 | 4k7 | 0,02 | |||
| 5 | 10k | 0,1 | |||
| 1 | 12k | 0,02 | |||
| 1 | 18k | 0,02 | |||
| 1 | 33k | 0,02 | |||
| 3 | 75k | 0,06 | 68 | ||
| 9 | 100k | 0,18 | 86 | ||
| 2 | 120k | 0,04 | 90 | ||
| 2 | 220k | 0,04 | 94 | ||
| 1 | 330k | 0,04 | 98 | ||
| 1 | 1m5 | 0,04 | 102 | ||
| 1 | 2m2 | 0,04 | 106 | ||
| 1 | 3m3 | 0,04 | 110 | ||
| 1 | 100R | R1 | trimmer S64Y/W | 0,5 | 1,6 |
| 7 | 110k | R23,R36-41 | trimmer s64/w | 3,5 | 5,1 |
| 1 | 10n | c3 timimg | mica, c0g, polystere | 0,5 | 5,6 |
| 6 | 10n | c4-c9 | mlcc 5mm | 0,6 | 6,1 |
| 2 | 10uF | c12,c13 | electrolyt 2,5mm 35V | 0,4 | 6,5 |
| 1 | 100pF | c1 | film 5mm | 0,5 | 6,9 |
| 1 | 470pf | c2 | film 5mm | 0,5 | 7,4 |
| 3 | 100n | c10,c120,c130 | mlcc 5mm | 0,15 | 7,55 |
| 1 | 220n | c11 | film 5mm | 0,5 | 8,05 |
| 3 | 1n4148 | D1-D3 | 0,1 | 8,15 | |
| 5 | 2n3904 | q1,q2,q3,q6,q7 | matched ! | 5 | 13,15 |
| 1 | cd4046 | ic1 | ntaionak, fairchiel, mot, nxp | 1,2 | 14,35 |
| 1 | lt1013 | ic2 | or tl072 | 3,5 | 17,85 |
| 2 | tl074 | ic3,ic4 | 0,8 | 18,65 | |
| 1 | 1uf bipolar | c_lfo | filmcap 5mm | 0,5 | 19,15 |
| 1 | 470k | r_led | select for led | 0,02 | 19,17 |
| 2 | ferrite | 0,2 | |
| 1 | 390r | 0,02 | 0,22 |
| 2 | 1k | 0,04 | 0,26 |
| 1 | 1k8 | 0,02 | 0,28 |
| 3 | 2k2 | 0,06 | 0,34 |
| 1 | 3k | 0,02 | 0,36 |
| 4 | 10k | 0,08 | 0,42 |
| 1 | 18k | 0,02 | 0,44 |
| 1 | 100k | 0,02 | 0,46 |
| 2 | 100k trimmer | 1 | 1,46 |
| 1 | 120k | 0,02 | 1,48 |
| 1 | 330k | 0,02 | 1,5 |
| 1 | 2m2 | 0,02 | 1,52 |
| 2 | 10n | 1 | 2,52 |
| 2 | 100n | 1 | 3,52 |
| 2 | 10uf caps | 0,2 | 3,72 |
| 2 | 2n3904 | 1 | 4,72 |
| 1 | tl074 | 0,4 | 5,12 |
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