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Spring Reverb Mk ii
(November 2017 onwards)
Music Thing Modular Spring
Reverb Mkii version
PLEASE DO NOT LINK TO OR REDISTRIBUTE THIS
DOCUMENT WITHOUT PERMISSION FROM THONK
For the most recent version of this
document please visit –
https://thonk.co.uk/documents/springreverb/
Refer also to the Music Thing
documentation here -
For all technical support please create a
Github account and log an issue here -
https://www.thonk.co.uk/spring-github/
Chat about the build here –
https://www.thonk.co.uk/spring-muff/
All Thonk kits are sold under our standard Terms and Conditions -
http://www.thonk.co.uk/faq/
DIY INSTRUCTIONS
This document gives detailed instructions that assume you have purchased a
complete Music Thing Modular Spring Reverb MkII kit from
after November 2017, it also assumes no previous knowledge of electronics.
To learn to solder try
the Adafruit guide to excellent soldering –
Watch and understand that whole YouTube video! If you're not achieving the
results shown in the video then you need to buy new tools or seek advice.
You will not end up with a working unit otherwise.
TOOLS REQUIRED
Soldering iron, snipe nose pliers, wire strippers, small flat head screwdriver
and diagonal cutters AKA snips AKA side-cutters. A Digital Multimeter is
always helpful for checking for bad solder joints and continuity. Thonk sell a
range of inexpensive tools here -
November 13th 2017
Eurorack DIY Kit
Instructions
http://bit.ly/2hwUvvq
https://www.youtube.com/watch?v=IpkkfK937mU
http://bit.ly/1jxqF3n
www.thonk.co.uk
Version 1.00
www.thonk.co.uk
http://bit.ly/1l77tF4
and
1
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Summary of Contents for Thonk Music Thing Modular Spring Reverb Mkii
- Page 1 Soldering iron, snipe nose pliers, wire strippers, small flat head screwdriver and diagonal cutters AKA snips AKA side-cutters. A Digital Multimeter is always helpful for checking for bad solder joints and continuity. Thonk sell a range of inexpensive tools here - http://bit.ly/1jxqF3n...
-
Page 2: Solder Joints
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). - Page 3 FRONT PCB R4, R5, R8, R9, R12, R13, R21, R22, R23 In the same bag you’ll also find two 6.8K resistors, solder them into the positions R11 and R19 shown on the BACK PCB November 13th 2017 www.thonk.co.uk...
- Page 4 The resistance value for R110 is not labeled as the value depends on the type of Vactrol used, for Thonk kits or when using a VTL5C3 vactrol this should be a 47K resistor. In the same bag you’ll also find...
- Page 5 10K resistors, solder them into the positions R3, R6, R104 and R105 shown on the BACK PCB Finally in that resistor bag you will have a single 4.7K resistor left, solder it into position R106 shown on the BACK PCB November 13th 2017 www.thonk.co.uk...
- Page 6 Orientation of this part is vital, the module will not work if they are the wrong way round. Finally find the single 22pF capacitor in the same bag and solder into position C5 on the BACK PCB November 13th 2017 www.thonk.co.uk...
- Page 7 C110 on the BACK PCB Next find the larger bag of various caps and identify the 6 x 100n capacitors and solder into the positions shown on BOTH PCBs C6, C7, C104, C105, C106, C107 November 13th 2017 www.thonk.co.uk...
- Page 8 ‘-‘ on the PCB. Note the component has a grey stripe on the cylindrical body on the minus side, the grey stripe should be facing the adjacent yellow ceramic cap. November 13th 2017 www.thonk.co.uk...
- Page 9 The orientation is vital, the sign! LONGER lead on the component should go to the square pad marked with a plus ‘+‘ on the PCB. The grey stripe on the cylindrical body should face the center of the FRONT PCB November 13th 2017 www.thonk.co.uk...
- Page 10 NOTE! The orientation is vital, the curved body of the component must match the curved outline on the silkscreen. Take care to solder efficiently and quickly so as to not heat the component for too long. November 13th 2017 www.thonk.co.uk...
- Page 11 Next take the male pin header and break down into one 6 pin section and one 8 pin section. Solder into the positions shown on the REAR PCB, take care to solder them on the SAME SIDE as the resistors etc. November 13th 2017 www.thonk.co.uk...
- Page 12 The longer lead of the LED B10K Trimmer MUST go to the pad marked with (EQ) a + on the PCB silkscreen. before soldering put the panel on carefully and secure in two places with nuts as shown. November 13th 2017 www.thonk.co.uk...
- Page 13 Repeat for the other side. Take the final two TL072CP ICs and position as shown on the FRONT PCB, the circle on the face should be at the notch end of the socket. NOTE – Orientation is vital! November 13th 2017 www.thonk.co.uk...
- Page 14 Custom response. Attach the shunt even if you ARE attaching the expander as you should test the main module without the expander first. November 13th 2017 www.thonk.co.uk...
- Page 15 If you are not using an external ‘real’ spring tank then you are ready to power on the module. If you are connecting a real tank or building the expander then please continue or maybe take a rest from soldering :) November 13th 2017 www.thonk.co.uk...
- Page 16 You may want to adjust it again later on but this is a good place to start. For more information on this module and selecting a suitable tank read here - https://medium.com/music-thing-modular-notes/everything-i-know-about- spring-reverb-1fb4b32abf87 November 13th 2017 www.thonk.co.uk...
- Page 17 Spring Reverb Mk ii Eurorack DIY Kit Version 1.00 (November 2017 onwards) Instructions November 13th 2017 www.thonk.co.uk...
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