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This page contains hi-res pictures of the build process. More will be added while build continues ...

shared by Björn Verbruggen and me.


for more details click on the picture, please respect the copyright - please ask before share on other websites, for private usage only.

Unpopulated PCB Pictures

(download the picture and open it local)

PSU

 

You should bridge the connections for the choke, and reverse the dc in connector. (notice this is another connector, not the one stated in the BOM)

Mainboard

Preamplifier/ Ringmod

VCO-1

VCO-2

VCO-3

VCO4027

VCF/Mixer

ADSR/AR

VCA

Mixer

Reverb

Amplifiers

 

S/H


Voltage Processor

Noise

Filtercards

4012 Filter

 

Notice the LM301 is soldered directly to the pcb. However you should use IC sockets.

There are 2 things to keep in mind:

 Click here to expand...
  • The BC558B needs to be mounted backwards (flat side of the transistor faces round side of the pcb print):

  • You have to swap 2 pins of the 3958 - use insulation:


4072 Filtercard






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2 Comments

  1. Just out of curiosity, why do you recommend using a socket for the LM301 in the 4012 filter? Is it under some stress that makes it likely to need replacing?

    1. Nope, it's not. But it will be much easier to replace if it gets defunct. It will be hard to source another filter pcb if you damage it by desoldering the IC.