November 13th 2017
www.thonk.co.uk
2
Spring Reverb Mk ii
(November 2017 onwards)
Eurorack DIY Kit
Instructions
Version 1.00
SOLDER JOINTS
Your solder joints should look like those shown as ‘OK’ below, they should
have that neat conical shape on
BOTH sides of the PCB
. If they don’t look
the same on both sides then stop! Work out why from the soldering guides
linked and don’t continue until you are getting those results.
This isn’t about perfectionism, you are very likely to end up with a destroyed,
damaged or defective unit if you’re not hitting that standard.
This photo is from the
Adafruit guide to excellent soldering
-
http://
bit.ly/1l77tF4
and is reproduced under an Attribution-Sharealike
creative commons license -
http://creativecommons.org/licenses/by-sa/3.0/
IDENTIFYING RESISTORS
We are now shipping resistors in shared bags to save on the amount of
plastic contained in our kits, to stop less of it ending up in the ocean we
hope… but hopefully without making our builds harder to complete.
We always make sure that the resistors are grouped together in different
amounts so it’s hard to mix them up
as long as you can count
…
We highly advise the practice of
testing one resistor of each value
with a
digital multimeter
BEFORE soldering. We do this at Thonk and it reduces
build errors greatly, if you don’t have a digital multimeter buy one! Or failing
that use this colour code calculator URL instead (we always ship with 1%
resistors so band 5 is always
BROWN
).
https://www.digikey.co.uk/en/resources/conversion-calculators/conversion-
calculator-resistor-color-code-5-band