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TRITON PREAMP DRIVE MK. III

1

PROJECT NAME

TRITON MK. III

BASED ON

EFFECT TYPE

PROJECT SUMMARY

DOCUMENT VERSION

Catalinbread

®

 Dirty Little Secret V3

An adaptation of the classic Marshall

®

 amplifiers from the 1960s. It uses cascaded mu-amp stages in 

place of tubes for amp-like tone in a small box.

Overdrive / Amp Emulation

1.0.1 (2021-02-19)

Actual size is 2.3” x 1.86” (main board) and 1.78” x 0.87” (bypass board).

BUILD DIFFICULTY

Intermediate

This documentation is for the 

Mk. III

 version of the project. There is also a 

Mk. II

 version, based on 

the Dirty Little Secret Mk. II. While the name is similar, the circuit and part numbering are different. 
Please be sure your PCB is labeled “Triton Mk. III” before proceeding with this build document.

IMPORTANT NOTE

Содержание TRITON MK. III

Страница 1: ...ike tone in a small box Overdrive Amp Emulation 1 0 1 2021 02 19 Actual size is 2 3 x 1 86 main board and 1 78 x 0 87 bypass board BUILD DIFFICULTY Intermediate This documentation is for the Mk III ve...

Страница 2: ...onestack of the Super Lead Like several other Catalinbread pedals this circuit blurs the line between a preamp and an overdrive Like a true preamplifier it s very reactive to what comes before it so i...

Страница 3: ...film resistor 1 4W Carbon comp in original measured value 560R Formula 5F6 1k8 DLS Red 1k R12 1k Metal film resistor 1 4W DLS Red 270R R13 1M Metal film resistor 1 4W R14 1M Metal film resistor 1 4W...

Страница 4: ...citor X7R Power supply filter capacitor D1 1N5817 Schottky diode DO 41 Q1 MMBF4393 JFET N channel SOT 23 Substitute for MPF4393 TO 92 See build notes Q2 MMBF4393 JFET N channel SOT 23 Substitute for M...

Страница 5: ...lows All surface mount JFETs use the same pinout so this configuration will fit any type that we re aware of However always check the datasheet if you re uncertain they re difficult to desolder if you...

Страница 6: ...n 1k 2M2 2M2 MPF4393 VA GND 4k7 GND 1n GND 220n 10kB 10n VA GND OMIT IN OUT R1 D1 C23 PREAMP 1 2 3 MASTER 1 2 3 C24 C1 R2 R3 Q1 C3 C4 R5 Q2 R4 R6 R7 C9 C10 R9 Q3 R11 Q4 R12 C13 R13 R14 R22 R8 C5 C6 C8...

Страница 7: ...itchcraft 111X Open frame jacks will not fit in layouts with 5 or more knobs due to the placement of the DC jack LED hole drill size assumes the use of a 5mm LED bezel available from several parts sup...

Страница 8: ...TRITON PREAMP DRIVE MK III 8 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B...

Страница 9: ...TRITON PREAMP DRIVE MK III 9 WIRING DIAGRAM 125B IN V GND N C N C OUT PCB IN GND V V JACK GND JACK OUT IN GND GND PCB OUT...

Страница 10: ...ions of others Projects may be used for commercial endeavors in any quantity unless specifically noted No attribution is necessary though a link back is always greatly appreciated The only usage restr...

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