Hello,

i want to build a Circuit, TS or Distortion and like to integrate a Booster Circuit after it.

Wich cirtuit is good to use for this Job? I thought about an LPB circuit
or other simple one. But i want to prevent, that the Output of the
First Stage overloads the Booster Circuit and that it sounds muddy, when
Booster is activated.

Perhaps the Output Buffer of the typical TS Circuit can be used for that Job and modified to Boost the Level UP?

Thanx for any suggestions !!

bye
Oliver

Hi.  The output buffer of a TS is an emitter-follower, and has a gain of just less than 1.  You'd need to change the design to get a boost.  

One possibility is to use the final stage of a Big Muff as a simple output buffer with some useful gain (of around 5).  More gain is possible with this and other designs, but you'll quickly run into clipping due to the limitations of a 9V supply.

cheers

It would be pretty easy to wire up a LPB to add at the end. I think you would only overdrive the LPB if you crank the TS level too high. You could put a 10k or so between them to help with that. I run my dual mosfet booster right after my SD-1/808 for the same purpose you're talking about.

Regards

RDV

If you need more headroom in the booster, run it at a higher voltage (12-18v?).  But if you set your TS level to match your bypassed level, you should not run into any problem, even at 9v.  Rather than muddying up, the booster may actually add clarity to your notes.

Hello,

and Thanx for Your Suggestions..

At the Moment i run the TS Level a bit higher than the Bypass Level, to color the Tone for an overdriving rhythm Sound. For more Level, i switch
a Resistor between Vr (4.5Volt) and the LevelPot. The Resistor is a 500K Pot. That works fine!

I'll try some cheap Boost circuits.

For those of You who likes a Transistorboost  
Try the Electra Distortion Circuit from http://www.geocities.com/j4_student/schematics.htm
take a BC549C Transistor, a 4M7 instead the 2M2 Resistor between
Base and Collector, leave the Clipping Diodes away and play with the
Emitter Resistor for Your taste. A 43K Resistor instead the 47K one will
work properly.
It makes a huge Clean Boost - more Boost, than an LPB.
I didnt Try it yet with more SignalInput (this is the Time for it)

Ill post my experience, when done!

bye
Oliver

Hi,

here is the little Schematic of the little BoostCircuit i described above...



cu

Oliver