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TubeOhm De-Generator Building Instruction

Diy sample synthesizer, building instruction 3, the filterboard
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De-Generator
DIY sample Synthesizer
Building instruction 3, the filterboard
V 1.04 english
Date 08.04.2019
www.tubeohm.com

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Summary of Contents for TubeOhm De-Generator

  • Page 1 De-Generator DIY sample Synthesizer Building instruction 3, the filterboard V 1.04 english Date 08.04.2019 www.tubeohm.com...
  • Page 2 Hello, now we come to the third building instruction. In this manual we will assemble the -stereo multimode filter. As always, take a look at the board first – and Hoooommmmm -, the only thing you have to watch out for is that the three connectors K1,2,3,4 come down. Tip: the resistors should always be measured with a multimeter before soldering.
  • Page 3 We now solder the following components : 2 Bauteile/2 parts L1,L2 Coil 10 uF Can be that the biger or 2x10uH coil 320 mA smaller one is in the kit 8 Bauteile /8 parts 220R Position value Metall film resistor 8x220R R1,R31,R32,R35,R41,R44, R47,R50...
  • Page 4 6 Bauteile / 6 parts Position value Metall film resistor 6x1K= R11,R18 R17,R53,R54,R62 Brown,black,black,brown,brown 3 Bauteile /3 parts 2,2K Position value Metall film resistor 3x2,2K R20,R24,R56 Red,red,black,brown,brown...
  • Page 5 3 Bauteile / 3 parts 4,7K Position value Metall film resistor 3x4,7K R72,R73,R75 Yellow,purple,black,brown,brown 1 Bauteile / 1 parts 5,6K Position value Metall film resistor 1x5,6K Green,blue,black,brown,brown...
  • Page 6 23 Bauteile / 23 parts 4,7K Position value Metall film resistor 23x10K R16,R19,R27,R28,R29,R30,R34, R36,R38,R39,R40,R42,R43,R45, Brown,black,black,red,brown R46,R48,R49,R51,R52,R55,R70, R71,R74...
  • Page 7 6 Bauteile / 6 parts Metall film resistor 2x22k R77,R79 Red,red,black,red,brown Metall film resistor 2x24,9K R5,R65 Red,yellow,white,red,brown Metall film resistor 2x33K R22,R57 Orange,orange,black,red,brown 33K position 22k position 24,9K position...
  • Page 8 10 Bauteile / 10 parts Metall film resistor 4x47K R13,R14,R25,R26 Yellow,purple,black,red,brown Metall film resistor 6x49,9K R3,R7,R9,R68,R61,R66 yellow,white,white,red,brown 47K position 49,9K position...
  • Page 9 8 Bauteile / 8 parts Metall film resistor 2x68k R6,R15 Blue,gray,black,red,brown Metall film resistor 2x82K R4,R64 Gray,red,black,red,brown Metall film resistor 4x100K R8,R10,R67,R69 Brown,black,black,orange,brown 68K position 82K position 100K position...
  • Page 10 6 Bauteile / 6 parts Metall film resistor 2x120k R37,R60 Brown,red,black,orange,brown Metall film resistor 2x270K R23,59 Red, purple,black,orange,brown Metall film resistor 2x510K R12,R63 Green,brown,black,orange,brown 120K position 270K position 510K position Now we have solder all resistors into the PCB . The PCB should look like this:...
  • Page 11 Now we're going to solder in the capacitors. 8 Bauteile / 8 parts Ceramic cap RM2,5 2x10pF C2,C6 10pF marked [10] or 10pF Ceramic cap RM2,5 4x100pF C1,C4,C23,C29 100pF marked [101] Ceramic cap RM2,5 2x220pF C8,C10 220pF marked [221] 2x 10 pF 4x100pF 2x220pF...
  • Page 12 28 Bauteile /28 parts Ceramic cap RM2,5 28x100nF C5,C7,C9,C14,C16,C18,C19,C24, C26,C28,C30,C31,C33,C35,C36, 100nF marked [104] C38,C39,C40,C41,C42,C43,C44, C49,C50,C51,C52,C53,C54 Ceramic cap RM2,5 4x220nF C13,C17,C22,C32 220nF marked [224] 4x220nF marked [224] 28x100nF marked [104] Before we solder the remaining capacitors it is easier to solder the IC sockets first. We need: 1x8 pin IC socket 4x14 pin IC socket...
  • Page 13 the 8 PIN IC socket is marked blue and is installed so that the notch points to the left . the 14 PIN IC socket is marked green and is installed so that the notch points to the left. the 16 PIN IC socket is marked red and is installed so that the notch points to the left.
  • Page 14 Now the remaining capacitors are soldered. 14 Bauteile/ 14 parts Wima cap RM2,5 8x1nF C11,C12,C15,C20,C25, C27,C3,C37 1nF marked 0,001 Mini 10 uF Elko 2x10uF elko attention polarized , minus is C47,C48 10uF Elko polarized the short leg 4,7 uF NP (non polarized) 4x4,7uF NP Elko C21,C34,C55,C56...
  • Page 15 Finally, the semiconductors, trimming potentiometers and connectors are soldered. 8 Bauteile/ 8 parts 5x2N3906 T7,T8,T4,T5,T6 PNP Transistor 2N3906 Transistor 3x2N3904 T1,T2,T3 2N3904 Transistor NPN Transistor 3x2N3904 5x2N3906...
  • Page 16 The trimmer 7 Bauteile/ 7 parts Trimmer 20K 2x20k trimmpot Marked Z 203 R58,R76 2x Trimmer 20 K Trimmer 50K 1x50K trimm pot Marked Z 503 1x trimmer 50 K Here the 3 pots left 20K , middle 50 K , right The header 3 Bauteile / 3 parts Position K1...
  • Page 17 Now it should look like this From the top and from below *** the circuit board is cleaned...
  • Page 18 Measuring points. We work with the following operating voltages / potentials. -8 Volt +8 Volt Attention, the 4052 switch must be a C-MOS type !!! red = (plus) 8Volt >>> 7,5...8,5 is OK green = (minus)-8Volt >>> -7,5...8,2 is OK is measured against ground /GND .
  • Page 19 For the adjustment of the complete electronics, please refer to the 'ADJUSTMENT Manual'. So much in advance. The filter installed in the de-generator is a stereo filter! That means that each filter must be adjusted individually in V/OKT and then again among each other ! Sounds complicated , but it is not .
  • Page 20 We hope that this manual is nearly error free - but if you should find any errors ( wrong part name or misleading terms ) please let us know about these errors. We will change the manual immediately. Andre' TubeOhm Website:www.tubeohm.com Mail : Kontakt@TubeOhm.com...