Caline Mark 4  [schematic]

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.
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Dr Bertson
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Post by Dr Bertson »

Hello Everyone!

I got the Caline Mark 4 today and has started to trace this pedal.
After when it's finished, I will post the schematic here.

Dr B

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Dr Bertson
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Post by Dr Bertson »

Hello Everyone!

Here comes the schematic of the Caline Mark 4 Distortion.
I have tested this schematic on a breadboard and compare it to the real pedal and both sounds almost the same.
I have also tried some different IC's, OPA 2134, OPA 2604, RC 4558P, JRC 4580, NE 5532 and LM 833.
All of them sounds good with a little different in gain.
The best reult I got with the JRC 4558D (original) and the OPA 2604 (this sounds a little bit more HiFi).
Caline Mark 4 _1.pdf
Caline CP-16 Mark 4 Distortion
(63.79 KiB) Downloaded 991 times
Enjoy!

Dr B

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Dr Bertson
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Post by Dr Bertson »

Hello Everyone!

I have discovered that this pedal is a gem, because if I put this pedal before my homemade Mesa Bbogie Mark IV pedal (I built this about 4 years ago), then the pedal gives a good crunch in the Mark V pedal.

The Caline Mark 4 is a very simple circuit, but it sounds very good.
You can search for the schematics for Mesa Boogie Mark IV on the web, built this and put the Caline Mark 4 before it, then you got a good pedal.

Dr B

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Dr Bertson
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Post by Dr Bertson »

I have found a error in the schematic.
The diode labled D5 that is in the power line, should be labled D6 and it's a 1N4007.

Dr B

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Manfred
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Post by Manfred »

Some shots:
CalineCP-16_1.jpg
CalineCP-16_2.jpg
CalineCP-16_3.jpg
CalineCP-16_4.jpg
CalineCP-16_5.jpg

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Manfred
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Post by Manfred »

I inserted the passive compont identifier according to the assembly print into the drawing
and corrected the LED identifier.
CalineCP16.jpg

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Manfred
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Post by Manfred »

I I am thinking about to adding a simple tone control, and found that the value of the R12 resistor is to low.
I measured the value and read about 50 KOhms in parallel with VR3 on the right stop.
The Value is 100 kOhms not 10 KOhms.
CalineCP16corrected.jpg

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roseblood11
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Post by roseblood11 »

What about a variable resistor in series with the 6n8 as a simple tone control? Or have you tried s.th. else?

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roseblood11
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Post by roseblood11 »

The pedal sounds great, but it could be more versatile with (at least) a little more control over the high frequencies. What about adding the tone and presence control of the Crunch Box V2 or maybe even the TMB tonestack of the Guv'nor/Drivemaster, maybe modified to the values of the tonestack in the real Boogie Mk4?

http://1.bp.blogspot.com/-0zGoV3jSwJs/T ... tv2rx7.jpg
http://2.bp.blogspot.com/-kbEEXqIxX2A/T ... guvnor.gif

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Chugs
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Post by Chugs »

Look at the MI Audio Tubezone for some tone control ideas.

The topology of the Caline appears to be a simplified version of the Tubezone.

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roseblood11
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Post by roseblood11 »

Interesting! Do you have a schematic for the Tubezone (6 knob)? All I found was dead links

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Chugs
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Post by Chugs »

Here you go...
Attachments
MI Audio - Tube Zone 6-knob.pdf
(92.75 KiB) Downloaded 414 times
MI-Audio_TubeZone Schematic.pdf
(58.54 KiB) Downloaded 430 times

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DanAmpora
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Post by DanAmpora »

It looks like C8 (2u2) should be the other way around.

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caspercody
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Post by caspercody »

I made this pedal, using a vero board I created. The first gain stage works, but when I start to turn the gain 2 pot up, I get some weird noise. Just a little turn of the gain 2 pot I can start to hear a difference in the gain get dirtier, but once I start to turn the gain 2 pot more I get a loud shrieking sound. As I turn the gain 2 pot more clockwise it turns into wired noise, seems to get lower in frequency and reminds me of video game noise. Here are the voltage readings of the IC pins:

1 = 4.43
2 = 4.43
3 = 3.99
4 = 0
5 = 4.37
6 = 4.43
7 = 4.43
8 = 8.86

Voltage reading at source is 9.48 vdc. Any thought on why I am getting this weird noise on gain stage 2?

Thanks
Rob
Attachments
MARK 4.png

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caspercody
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Post by caspercody »

I found my mistake, missing (1) more cut. Now this is verified.
Attachments
MARK 4.png

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paulo shure
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Post by paulo shure »

Greetings everyone:

I would like some help on the assembly of this Caline mark4 pedal, I downloaded the electronic schematics I copied on the eagle I looked at it 30 times, and today I made the plate but the sound only came out, it did not make the distortion effect, I am posting the original link of where I downloaded and a pdf with my copy and the board I made. If you can help me I appreciate it.

Schematic link:
[spoiler] viewtopic.php?f=1&t=27849&hilit [/ spoiler]
Pdf with the board and scheme copied:
[spoiler] https://www.4shared.com/office/FHV2ex9u ... _erro.html [/ spoiler]

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emanuelneto
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Post by emanuelneto »

paulo shure wrote: 11 Sep 2020, 01:20 Greetings everyone:

I would like some help on the assembly of this Caline mark4 pedal, I downloaded the electronic schematics I copied on the eagle I looked at it 30 times, and today I made the plate but the sound only came out, it did not make the distortion effect, I am posting the original link of where I downloaded and a pdf with my copy and the board I made. If you can help me I appreciate it.

Schematic link:
[spoiler] viewtopic.php?f=1&t=27849&hilit [/ spoiler]
Pdf with the board and scheme copied:
[spoiler] https://www.4shared.com/office/FHV2ex9u ... _erro.html [/ spoiler]
You forgot the 220nF capacitor, without it the signal is attenuated

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houseofglass21
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Post by houseofglass21 »

Caline is actually about to release a new version of the Mark 4 pedal this month with a built in 6 band EQ called the “Easy Driver”. I have the regular Mark 4 and it’s great as is so adding the EQ should make it even better. I use the Mark 4 pedal thru a very bright and clean Silverface Fender Bassman 135, but I can see how some might find it dark thru certain amps.

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