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Welcome!  Thanks for purchasing your       Tightfuzz™
  pedal,  the  first  Amptweaker™  handmade  product 
desigded   with  your  advice.    The  TightFuzz is based 
on  consumers

ʼ

  requests  for  a  more  tweakable  classic 

fuzz box, with both Germanium  and Silicon transistors. 
Automatic  biasing  extends  the  range  from  very  clean 
tones to  killer  fuzz using a  single Fuzz control.   Keep 
those ideas coming!

Cool Ideas:

• True Bypass switching–with special input circuitry, 

works great with active pickups or wah pedals in front!

• Tight Attack control lets YOU dial in the chunk
• Fuzz, Volume, & Tone with 60

ʼ

s-70

ʼ

s Tone switch

• Bias automatically tracks Fuzz control for greater range 
• Germanium/Silicon output transistor switch
• Edge switch smoothes out the buzz
• Pre/Post selectable Effects Loop-tracks Bypass Switch
• Battery On/Off switch with red 

ʻ

Don

ʼ

t Forget

ʼ

 indicator

• LED lit knobs when using a DC adapter

good tone comes from tweaking ...

TM

James Brown, Amp Engineer

Welcome! Thanks for purchasing your TightFuzz™ 
pedal,  another  Amptweaker™ 
designed with

Summary of Contents for TIGHTFUZZ

Page 1: ...g with special input circuitry works great with active pickups or wah pedals in front Tight Attack control lets YOU dial in the chunk Fuzz Volume Tone with 60ʼs 70ʼs Tone switch Bias automatically tracks Fuzz control for greater range Germanium Silicon output transistor switch Edge switch smoothes out the buzz Pre Post selectable Effects Loop tracks Bypass Switch Battery On Off switch with red ʻDo...

Page 2: ... Bypass SW disconnects all circuitry and directly connects Input Jack to the Output Jack Input Jack from guitar or previous effect The battery disconnects when unplugged 60ʼs 70ʼs Tone SW tweaks EQ for bright 1960ʼs or full range 1970ʼs fuzztones DC Jack use regulated 9V 18VDC supply center pin 9V is the most distorted while 18V is cleaner and louder works better for clean boosting Fuzz adjusts di...

Page 3: ... off the battery when not in use not active when using an adapter Specs Input impedance 250K Ohm effect on Output Impedance 1K Ohm effect on Current 11mA with 9V battery 22mA with 9V adapter 45mA with 18V adapter adapter adds knob LEDs Adapter 9 18VDC adapter w 5 5mm X 2 1mm positive barrel center ground Housing 14 Gauge galvanized steel Weight 2 pounds Dimensions 3 75 W X 5 D X 2 H Effects Send R...

Page 4: ...ffects Loop set to Post to add more output level or tweak the TightFuzz tone By using higher Volume and lower Fuzz settings the TightFuzz works more like a clean tone with Tight DOWN 70ʼs tone or treble booster with Tight UP 60ʼs tone For the thickest and buzziest fuzz use Silicon 70ʼs Edge OFF Fuzz turned UP and Tight turned DOWN Select Pre Effects Send to use it as a switchable ʻcleanʼ send to a...

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