Lithium Grim Oceanic Delay User manual

1
Oceanic Delay
Building instructions
V1.1

2
Table of contents
Components ............................................................................................................................................ 3
General guideline for components.......................................................................................................... 4
General building tips ............................................................................................................................... 4
Modifications........................................................................................................................................... 5
Tap Tempo Daughterboard..................................................................................................................... 5
Offboard wiring ....................................................................................................................................... 6
Troubleshooting ...................................................................................................................................... 8
Schematic ................................................................................................................................................ 9

3
Components
Part
Value
Comment
Part
Value
Comment
Part
Value
Comment
C1
22n
MKT
C18
100n
MKT
R11
20k
C2
100u
Electrolyte
C19
47u
Electrolyte
R12
10k
C3
1u
Electrolyte
C20
100p
Ceramic
R13
10k
C4
1u
Electrolyte
C21
47u
Electrolyte
R14
10k
C5
1u
Electrolyte
C22
47u
Electrolyte
R15
5k1
C6
4n7
MKT
D1
1N5817
R16
2k
C7
2n2
MKT
IC1
TL072
Socket
R17
20k
C8
2n2
MKT
IC2
PT2399
Socket
R18
2k7
C9
100n
MKT
R1
1M
R20
10k
C10
100n
MKT
R2
180k
R21
10k
C11
15n
SMF
R3
360k
R22
5k1
C12
10n
MKT
R4
22k
R23
100k
C13
22n
MKT
R6
1k
REG1
LM78L05
Socket
C14
1u
Electrolyte
R7
33R
VR1
B50k
Mix
C15
47n
MKT
R8
10k
VR2
B25k
Volume
C16
47p
Ceramic
R9
10k
VR3
B50k
Feedback
C17
100n
MKT
R10
1k
VR4
B50k
Delay

4
General guideline for components
Capacitors: All values under 1nF should be ceramic disks. From 1nF up to 1uF should be MKT
(foil/metal film capacitors) and over 1uF use electrolyte caps (or tantalum) 16V+ rated and
watch out for polarity! In this build there are some deviations from this rule so we marked all
capacitors with the required type in the table on page 3.
Resistors: use 1% metal film for the best results.
Socket all IC’s and the voltage regulator. This way you can easily mod them or replace them if
they brake.
General building tips
Soldering this board can be complicated for some people since the solder pads can be very close
together. Use a magnifying glass to make the job easier.
Start by soldering the resistors. It is best to solder diode D1 in an upright position (remember the
polarity) so do not solder it yet. Next, solder the sockets for the IC’s and voltage regulator. For the
voltage regulator you can buy a 20 pin SIL socket and cut of the pins you need. IC1 requires a 8 pin
DIL socket, IC2 a 16 pin DIL socket. Now solder the ceramic capacitors, the diode D1, then you can
solder the MKT capacitors and the electrolyte capacitors. Note that C3, C4 and C14 fit both MKT and
electrolyte. Watch out for their polarity! The polarity of the 3 holes of C3 are - + +. For C4 and C14
this is + + -. Now finish by soldering the Greenie capacitors. Place the IC’s and voltage regulator and
you are almost ready to rock. The white triangle on the IC’s point to where pin 1 of the IC should be
inserted.
Besides the components mentioned in the table on the first page, you will need:
2 input jacks. 2 mono jacks if you are not going to use a battery but only the 9V adapter. 1
mono (for output) and 1 stereo jack (for input) if you will be using both a 9V battery and the
9V adapter.
3PDT footswitch (9 pins). I also carry an easy off board circuit for this.
2,1mm DC jack (isolated).
9v battery clip (optional).
22 gage stranded hook-up wire.
Hammond 1590BB case (or similar) in your favorite color.

5
Modifications
If you want darker repeats then you can replace the C11 (15nF) with a higher value or make it
switchable like this (middle position is stock value of 15nF). You are free to choose different values!
15nF
68nF
33nF
DP3T On-Off-On switch
To pin 1 of C11 To pin2 of C11
Some people prefer another IC than the TL072. You could try a OPA2134 instead.
Tap Tempo Daughterboard
If you are planning on using a taptation tap tempo daughterboard (sold separately, contact your
seller) then do not connect R18 and VR4. You can connect the PT2399 pin 6 output of the
daughterboard via the left hole of R18 marked with “TAP”.

6
Offboard wiring
Tip
Tip
Ring
Ring Output Jack
Input Jack
Cathode (short leg)
Anode (long leg)
Sleeve
R led
Notice that in the “off” position the effect input is connected to ground to prevent possible
oscillation. Also note that the output jack ground is not connected. Make sure there is good electrical
contact between the jack and the enclosure. If not you can connect the output ground to the input
ground like the rest for stargrounding.
The LED requires a resistor (R led in the diagram) depending on the type of LED you are using. An
ultra-bright red or blue LED requires a 3k3 resistor, Green requires 680R.
Blue = pin 1
White = pin 2
Yellow = pin 3

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If you decide to use the tap tempo daughterboard in a separate case you can wire it like this:
Output to Taptempo board
Tip
Tip
Ring
Ring Output Jack
Input Jack
Cathode (short leg)
Anode (long leg)
Footswitch
Sleeve
R led
Ring
Tip
If you are getting a groundloop then first try to disconnect the ground from the output to your
taptempoboard and see if that solves the problem.
Blue = pin 1
White = pin 2
Yellow = pin 3

8
Troubleshooting
All PCB’s have been e-tested 100% in the factory, so there should not be a connection problem on
the PCB itself.
The board is not working (at all), what now?
Check if your 9V is plugged in correctly (and/or soldered correctly on the board).
Check that you oriented the capacitors, IC’s ,transistors and diodes the right way. MKT
capacitors and resistors do not need to be oriented.
Check if you used the correct values of the components. For resistors you can look here:
http://www.diyaudioandvideo.com/Electronics/Color/
Double and triple check your soldering! A lose or cold solder can be really bad for your board.
Replace the IC’s and transistors, one might be defective. Before doing that first unplug the 9V
and wait 5 seconds.
Check that you have good/high grade components. A lot of Chinese sourced parts are fakes
(especially high end opamps) so be careful that you source your parts from reliable suppliers.

9
Schematic