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BUSINESS CARD DRIVE

3

PARTS LIST, CONT.

PART VALUE

TYPE 

NOTES

IN

1/4" stereo

1/4" phone jack, closed frame

Switchcraft 112BX or equivalent.

OUT

1/4" mono

1/4" phone jack, closed frame

Switchcraft 111X or equivalent.

DC

2.1mm

DC jack, 2.1mm panel mount

Mouser 163-4302-E or equivalent.

BATT

Battery snap

9V battery snap

Optional. Use the soft plastic type—the hard-shell type will not fit.

FSW

3PDT

Stomp switch, 3PDT

ENC

125B

Enclosure, die-cast aluminum

Can also use a Hammond 1590N1.

BUILD NOTES

Son of Screamer variation

The parts list is for the Lovepedal Eternity, but the schematic is also identical to Jack Orman/AMZ’s 
legendary “Son of Screamer” if you swap out a few parts. Here are the values to change if you want to 
build a Son of Screamer.

•  R2: 470k

•  R3: 4.7k

•  R4: 47k

•  R9: 220R

•  C2: 47n

•  C4: 220n

•  D2: jumper

•  D4: jumper

•  Tone: 20kW

•  Volume: 10kB

Summary of Contents for BUSINESS CARD DRIVE

Page 1: ...Card Drive is a fully functional overdrive effect disguised as a business card It s designed to fit the same enclosure style as the new 125B projects although since it doesn t come with a bypass PCB...

Page 2: ...tal film resistor 1 4W R9 330R Metal film resistor 1 4W C1 47n Film capacitor 7 2 x 2 5mm C2 100n Film capacitor 7 2 x 2 5mm C3 47pF MLCC capacitor NP0 C0G C4 150n Film capacitor 7 2 x 2 5mm C5 1uF Fi...

Page 3: ...tional Use the soft plastic type the hard shell type will not fit FSW 3PDT Stomp switch 3PDT ENC 125B Enclosure die cast aluminum Can also use a Hammond 1590N1 BUILD NOTES Son of Screamer variation Th...

Page 4: ...A 1M JRC4558D 47n VB 47pF 1N914 20k 100n VB 3k3 1k 150n JRC4558D 220n 330R GND GND 1k 1uF GND 10k 10k GND 47uF GND VA GND GND VB R1 C8 VOLUME 1 2 3 DRIVE 1 2 3 TONE 1 2 3 R2 2 3 1 IC1A C1 C3 D1 D2 R4...

Page 5: ...umes the use of closed frame jacks like the Switchcraft 111X If you d rather use open frame jacks please refer to the Open Frame Jack Drill Template for the top side LED hole drill size assumes the us...

Page 6: ...BUSINESS CARD DRIVE 6 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B...

Page 7: ...RD DRIVE 7 WIRING DIAGRAM 125B IN GND V GND OUT V LEDR Shown with optional 9V battery If battery is omitted both jacks can be mono rather than one being stereo Leave the far right lug of the DC jack u...

Page 8: ...s suggestions based on the experience and opinions of others Projects may be used for commercial endeavors in any quantity unless specifically noted No attribution is necessary though a link back is a...

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