Tube Screamer Overdrive SMD
This pre-assembled PCB is based on the Tube Screamer circuit with six switches for overdrive and tone customization. Simply mount the potentiometers and DIP switches to complete the build.Steps
Categories
Status: Active
PCB Step 2 of 4
COMPONENTS
PCB
PCB TUBE SCREAMER PCB
Potentiometers
GAIN 500k-A 500K OHM LOGARITHMIC TAPER POTENTIOMETER
TONE 20k-W 20K OHM W-TAPER W20K TONE CONTROL POTENTIOMETER
VOL 100k-A 100K OHM LOGARITHMIC TAPER POTENTIOMETER
DIP Switch
DIP SWITCH 6 POSITIONS (Optional)
Connector
4 PINS XH-2.54 MALE CONNECTOR (Optional)
PCB
SCHEMATIC
DIP SWITCH SETTINGS
Use a DIP switch for versatility, or wire jumpers to create a fixed configuration. With the switch in the "ON" position, the circuit is closed (shorted), which is the same as creating a permanent connection with a wire jumper.
S1: Flat mids. 
S1 OFF: original setting with mids hump.
S1 ON: flat mids.
S2 and S3: Bass control (fat mod). 
S2 OFF, S3 OFF: original bass setting.
S2 ON, S3 OFF: extra bass 1.
S2 OFF, S3 ON: extra bass 2.
S2 ON, S3 ON: extra bass 3.
S4 and S5: Clipping diodes. 
S4 ON, S5 OFF: one pair of silicon diodes. Original setting. More compressed sound.
S4 OFF, S5 ON: two pairs of silicon diodes. More transparent and less compressed sound.
S4 OFF, S5 OFF: one pair of LED diodes. Most transparent and least compressed sound.
S6: Brightness control. 
S6 OFF: original tone setting.
S6 ON: brighter tone.