TouellSkouarn Sonveskan Technical manual

Sonveskan –Build Document V2
17/06/2022
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1. Start by soldering in the 5 x 10K trimmers (Gain1, Gain2, Gain3, EQLevel, Gain_Out)
2. Next solder the 2x5 pin power header –Note: orientation is vital: the notch in the
header body must face the outside edge of the PCB (see image below for
reference).
Notch facing the
edge of the PCB

Sonveskan –Build Document V2
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B50K x 2
Bottom Row
B1M x 3
Middle Row
B100K x 3
Top Row
3. Now turn the PCB over and place but don’t solder yet the 8 x pots. Note: placement
is vital! There are 3 different pots values, see below for correct placement. Make
sure you place the pot legs for the B100K pots in the correct holes! The 3 small legs
for the B100K pots and B1M pots face towards each other as shown below.
The 3 pins on the B100K pots
and B1M pots all face towards
each other as shown
B100K
B100K
B100K
B1M
B1M
B1M
B50K
B50K

Sonveskan –Build Document V2
17/06/2022
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4. Now place the front panel onto the pots and screw on nuts and washers onto the
pots so they are correctly aligned and held in place. Then turn over and solder in all
the pots and then remove the front panel again

Sonveskan –Build Document V2
17/06/2022
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5. Now it’s time to solder the 7 x transistors. Note –orientation is vital: place them
according to the guide below. The ‘E’ pin is signified by the dot on the transistor
body. Touellskouarn recommend soldering these parts so that the body floats
around 7mm away from the PCB. Don’t forget to solder the one at the bottom of the
PCB, next to the EQLevel trimmer.
1T308 x 7

Sonveskan –Build Document V2
17/06/2022
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6. Next, turn the PCB over to the Pots side, and place but don’t solder yet the 10 x jack
sockets and 6 x switches. Once in place fit the panel again and add some nuts to the
jacks and switches to hold them in place. Then turn over and solder all pins for the
jacks and switches

Sonveskan –Build Document V2
17/06/2022
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7. Finally you can fit the knobs and power cable. The default/recommended starting
position for all trimmers on the back of the PCB is in the middle position, they can
then be adjusted to taste if desired.