Clean Boost (Guitar-Bass) 10dB

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Description

Clean Boost for Guitar (or Bass)
Opamp Booster v1.0


This is a transparent, clean guitar booster for solo’s and other times when you need
extra dB’s. It is just a simple volume booster.

You can also use it to get some more gain out of an amp or distortion pedal. The circuit
is a very common amplifier circuit built around a TL071-opamp. Other opamps can be
used as well, but the TL071 is cheap and produces very little noise.

The "Boost"-knob controls the amount of boost, but can also attenuate the signal so you
can use it as a sort of pre-settable volume knob.


Notes:

    The maximum gain of this circuit is about 10 dB. If you need more (which I doubt),
    increase R2 (or decrease R1).  The gain A = 20*log(1+(R2/R1)
    
    Rp resistor is optional, it’s a pulldown-resistor to avoid ‘switch-popping’ when the effect
    is turned on.

    The circuit also acts as a buffer since it has a high input impedance (about 1 MOhm).
    This will give you more overall ‘clarity’ (high frequencies) when you’re using long cables.

    The booster is preferably used at the very end of the effect chain, just before the signal
    goes into the amp-input (or FX-return when using your amp’s effect loop).

 

 

 

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*Regards*
® 2017 (c) 
moutoulos ™
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