Lithium Grim Cabulator Manuale di istruzioni

Cabulator

Building instructions

v1.0

Cabulator v1.0 
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the 
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement 
is implied. 
2 
Table of contents 
 
PCB layout ............................................................................................................................................... 3 
Components ............................................................................................................................................ 4 
Build sequence ........................................................................................................................................ 5 
Drill template........................................................................................................................................... 6 
Off board wiring ...................................................................................................................................... 7 
Switches................................................................................................................................................... 8 
SW1 ..................................................................................................................................................... 8 
Hardwired........................................................................................................................................ 8 
DP3T switch..................................................................................................................................... 8 
XLR Out and SW2................................................................................................................................. 9 
Modifications......................................................................................................................................... 10 
Modded version ................................................................................................................................ 10 
Optimized version ............................................................................................................................. 11 
Troubleshooting .................................................................................................................................... 12 
Schematics............................................................................................................................................. 13 
 
 
Read this entire manual thoroughly before you start building the effect! There are a lot of available 
mods and you should choose which one you want to incorporate before starting your build. 
Last update: 18-02-2019 

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

PCB layout

Dimensions: 75 mm x 54,6 mm

2.95 inch x 2.15 inch

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

Components

Name

Value

Comment

Name

Value

Comment

470n

SMF/MKT/Wima

2N2222A

100n

SMF/MKT/Wima

1% metalfilm

100n

SMF/MKT/Wima

1% metalfilm

470p

MLCC

10k

1% metalfilm

4n7

SMF/MKT/Wima

1% metalfilm

8n2

SMF/MKT/Wima

22k

1% metalfilm

10n

SMF/MKT/Wima

10k

1% metalfilm

47n

SMF/MKT/Wima

4k7

1% metalfilm

47n

SMF/MKT/Wima

R10

10k

1% metalfilm

C10

5n6

SMF/MKT/Wima

R11

1% metalfilm

C11

18n

SMF/MKT/Wima

R12

4k7

1% metalfilm

C12

3n3

SMF/MKT/Wima

R13

100k

1% metalfilm

C13

470n

SMF/MKT/Wima

R14

15k

1% metalfilm

C14

470n

SMF/MKT/Wima

R15

10k

1% metalfilm

C15

100n

SMF/MKT/Wima

R16

10k

1% metalfilm

C16

100u

Electrolytic 16V+

R17

100k

1% metalfilm

C17

47u

Electrolytic 16V+

R19

10k

1% metalfilm

C18

SMF/MKT/Wima

R20

10k

1% metalfilm

C19

10u

Electrolytic 16V+

R21

10k

1% metalfilm

C20

Electrolytic 16V+

R22

10k

1% metalfilm

C21

Electrolytic 16V+

R23

10k

1% metalfilm

C22

100n

SMF/MKT/Wima

R24

1% metalfilm

IC1

TL074CN

R25

1% metalfilm

IC2

TL074CN

R26

10R

1% metalfilm

XLR Out

Male Chassis

R27

10k

1% metalfilm

B100k

Mid Response

R28*

jumper

1% metalfilm

P2a

B100k

Resonance

R29*

1% metalfilm

P2b*

Jumper 2-3

SW1

DP3T (on-on-on)

Output select

B100k

High Response

SW2

SPDT

Ground lift

A500k

Cabsize

VR1

B200k

XLR pad

B100k

Punch

A100k

Gain

1N5817

* Optional parts (see modifications section)

All parts need to be 16V+ rated

A=Log, B=Lin, C=Rev. Log

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

Build sequence

Soldering this board can be very complicated for some people since the solder pads are very close

together. Use a magnifying glass to make the job easier.

The trick to soldering a PCB is to work from small to big components. My building sequence

suggestions in this section are based on the parts I used myself. Sometimes some components are

smaller (or bigger) so always use your own common sense and change the order accordingly. Usually

capacitors can differ a lot in size depending on their rating and value.

Note: Do not blow on your solder in an attempt to cool it down. That can result in a bad join that

might corrode! Also take extra care not to short components.

Start by soldering the jumpers (if needed) and resistors. If you are building the default configuration

(as mentioned in the component section on p4) you will need to place a jumper for R28 and between

pad 2 and 3 (the round pads, not the square pad!) of P2b. You can create a jumper using a spare

piece of lead from a resistor or diode. Next comes the diode.

If you want to experiment with another transistor for Q1 then you could socket it instead of soldering

it to the board. You’ll need a some 20 SIL sockets, break off the sockets and solder them to the

board. Now is the time to solder the sockets for the ICs. Place the transistor and ICs not before you

are finished with all soldering and off board wiring!

Now continue by soldering the SMF and MKT capacitors then solder the internal trimpot (VR1). Finish

with soldering the transistor (if not socketed) and the Electrolytics. Note that the orientation of the

transistor (2N2222A) on the PCB is 180 degrees reversed!

I suggest you now drill the holes in your enclosure so you can use it during the off board wiring and

to correctly fit the pots to the backside of the PCB.

Note: Really take some time to determine where to place the pots, switches, jacks and PCB in the

enclosure before you start drilling. Measure twice, drill once.

You are almost ready to rock, well… not really. The difficult part starts now.

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

Besides the components mentioned in the components table, you will need:

•1 mono input jack, 1 stereo output jack.

•3PDT footswitch (9 pins)

•2,1mm DC jack (isolated).

•22 gage stranded hook-up wire.

•LED holder. This enables you to mount the LEDs in the enclosure.

•LED (3mm or 5mm depending on your taste). This will be the status LEDs

•Hammond 1590BB case (or similar) in your favorite color. This case will fit tightly and leaves

no room for error! If you need more room you could consider using a Hammond 1590XX.

Drill template

29,6 mm 29,6 mm

Resonance Cabsize High

Response 42,8mm

Footswitch

15mm

29,6 mm 29,6 mm

Gain Punch Mid

Response

27,8mm

After drilling the holes, insert the potentiometers in the enclosure and then insert them in the back

of the PCB.

You can break off the pin I marked with the yellow circle with a small

pair of pliers. The rectangle pad marks the pad for pin 1.

If all fits well you can solder the potentiometers to the board.

Pots drill holes 7mm

Switch drill holes 6mm

Footswitch drill hole 13 mm

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

Off board wiring

Ring

Sleeve

Tip

Cathode (short leg)

Input

R led

Anode (long leg)

Tip

Sleeve

Output

R led is a 3k3/4k7 resistors. You can change the value depending on the type of LED you use but 4k7

is safe enough for almost all LEDs @9V.

Note that the diagram is using star wiring for the ground connection. This requires that the output

jack makes very good contact to the enclosure! If this is not possible, you can connect a wire to the

sleeve of the output jack and the sleeve of the input jack.

VR1 (XLR Padding) is by default a PCB mounted potentiometer as it is mostly used as set and forget.

If you want to, you can make it and externally controllable potentiometer using a 16mm Alpha pot

B250k, The pins configuration is marked on the PCB and correspond to the pinout as shown on the

potentiometer on the previous page.

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

Switches

SW1

SW1 determines the output of the PCB. You can choose to attach a switch or to hardwire it. If you

attach a DP3T on-Z-on switch, you can choose between normal out via the output jack, output via

both XLR and normal out and XLR out only.

Hardwired

Normal out XLR out Normal and XLR out

DP3T switch

When you are using a DP3T on-Z-on, you must test which pins are connected in the middle position.

There are 2 types of switches which are shown below in the middle position:

3 2 1

4 5 6

3 2 1

4 5 6

3 2 1

4 5 6

Find out which one you have and wire accordingly. To prevent a floating output, I would advise to

reverse pin 1 and 2 (either on the PCB or on the switch). Also connect pin 3 and 6 on the switch to

ground. This way you ground the effect output and/or XLR output when it is not in use. You could use

the spare ground next to the output on the PCB. It will look like this:

3 1 2

4 5 6

To Ground

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

XLR Out and SW2

You can use the XLR out with or without a ground lift switch (SW2).

If you do not want to use the ground lift then you can leave out C22 and R26.

Turning VR1 will pad the output of the XLR if it is too loud.

The XLR chassis is shown upside down and looking at it from the rear.

Ground lift No ground lift

Cabulator v1.0

Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the

property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement

is implied.

Modifications

The PCB was designed to enable you to make several different mods. There were a lot of

experiments with making the effect sound even better, mainly by Bajaman. All these versions have

their good sides so you can build any of them by using only this single board. The only thing you will

have to do is choose. I personally like the optimized version the best.

The components section on page 4 reflects the traced original. The following paragraphs reflect the

modded version of the original followed by an optimized version.

Modded version

Name

Value

Comment

Name

Value

Comment

470n

SMF/MKT/Wima

2N2222A

100n

SMF/MKT/Wima

1% metalfilm

100n

SMF/MKT/Wima

1% metalfilm

470p

MLCC/Ceramic

10k

1% metalfilm

4n7

SMF/MKT/Wima

1% metalfilm

8n2

SMF/MKT/Wima

22k

1% metalfilm

4n7

SMF/MKT/Wima

10k

1% metalfilm

47n

SMF/MKT/Wima

10k

1% metalfilm

47n

SMF/MKT/Wima

R10

10k

1% metalfilm

C10

4n7

SMF/MKT/Wima

R11

470R

1% metalfilm

C11

4n7

SMF/MKT/Wima

R12

4k7

1% metalfilm

C12

680p

MLCC/Ceramic

R13

100k

1% metalfilm

C13

470n

SMF/MKT/Wima

R14

18k

1% metalfilm

C14

470n

SMF/MKT/Wima

R15

39k

1% metalfilm

C15

100n

SMF/MKT/Wima

R16

10k

1% metalfilm

C16

100u

Electrolytic 16V+

R17

100k

1% metalfilm

C17

47u

Electrolytic 16V+

R19

10k

1% metalfilm

C18

SMF/MKT/Wima

R20

10k

1% metalfilm

C19

10u

Electrolytic 16V+

R21

10k

1% metalfilm

C20

Electrolytic 16V+

R22

10k

1% metalfilm

C21

Electrolytic 16V+

R23

10k

1% metalfilm

C22

100n

SMF/MKT/Wima

R24

1% metalfilm

IC1

TL074CN

R25

1% metalfilm

IC2

TL074CN

R26

10R

1% metalfilm

XLR Out

Male Chassis

R27

10k

1% metalfilm

A10k

Mid Response

R28

1k5

1% metalfilm

P2a

B100k

Resonance

R29

2M2

1% metalfilm

P2b

Jumper 2-3

SW1

DP3T (on-on-on)

Output select

B100k

High Response

SW2

SPDT

Ground lift

A500k

Cabsize

VR1

B200k

XLR pad

B100k

Punch

A100k

Gain

1N5817

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