Tag Archives: Analog



Watamp Tube Preamplifier

Watamp is a Tube Preamplifier. Based on Orange, Green and similar amplifiers. It has a very sludgy warm buzzy sound. I use it with a 12ax7 or 6N2P-EV tube. (Undecided :#Q)

Part of the Guitar/Bass Modular.

  • Bass, Bass Boost, Treble, Depth and Gain
  • Bypass switch with Led Indicator .



(B)ASSMAN Tube Preamplifier

(B)ASSMAN Tube Preamplifier is based on the Fender BASSMAN 100’s “Bass Instrument” Preamp.
I use it with a 12ax7 or 6N2P-EV tube. (Undecided :#Q)
Great unique sound! 😛

Part of the 424 Guitar/Bass Modular.

  • Bass, Treble, Gain and Volume
  • “Deep” and Bypass switch with led on/off indicators

Schematics @ drtube.com

New modular guitar/bass stuff! :P

*July 2018*


New Guitar/Bass Effects/Amps I’ve built the last few months.

1. Thumb Screwer –  Distortion
2. (B)assman – Tube preamplifier
3. Alemthicc – Tube preamplifier
4. Watamp –  Tube preamplifier
5. Femder –  Speaker simulator
6. Warshall – Speaker simulator

More info and specs soon…

http://ninjanidiskus.net/ninjaniprojects/alt text

“Arch” 424 VCO

"Arch" 424 Eurorack VCO
“Arch” 424 Eurorack VCO

Single VCO with multiple waveforms


“Arch” 424 is a voltage-controlled oscillator. This VCO’s frequency range is wide, Can be used as VCLFO. It can produce four waveforms simultaneously: square, sawtooth, triangle, PWM and sine wave (sawtooth shape is not perfect yet). The frequency or pitch of the VCO is determined by tuning (Pitch and Fine) knob, and by the voltage present at the CV inputs.
You can control the pulse width of the square wave either by hand, or by voltage control – Pulse Width Modulation or PWM.

If perfect pitch is required better VCO is recommended. For a perfect sawtooth this is not recommended.

Part of the Synthesizer Modular


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