Atari Punk Console, Joystick Controller

Just completed another version of the Atari Punk Console (APC).  This one is housed in an Atari Joystick Controller.

Standard dual controls for the oscillators.  This device utilizes the 4-positions of the joystick and the button to change an alter the sound.

1/4" mono output jack
2.1mm input power jack (7-9VDC)
LED out output signal

Video Demo:

Polivoks Filter

Here is a version of the Polivoks Voltage Controlled Filter.

Circuit is based on the LM4250 Programmable OP Amps.  Features:

• Resonance, or "Q" Control
• Cutoff Frequency Control
• LP and BP Filter Settings
• On-board LFO
• Frequency Control
• On/Off Switch
• FM Control (controls the amount of oscillation of filtering)
• 1/4" Input and Output Jacks
• Input Gain Control
•  True Bypass
• Runs on 12VDC input power

I used the LTC1144 IC to make a dual voltage power supply for the circuit (+/- 12VDC).  This worked the best, straight forward and effective solution.

Assembled Unit Demo:

Circuit in development:

Photos of finished filter.

Designed for those who want table top units, guitar pedal type FX units.

Monster Box: Phantom

Square Wave and Triangle Wave based tabletop synthesizer.

4 oscillators
  Triangle Wave, Square Wave selector switches
  Frequency controls, High and Low frequency settings
  Range control, controls the amount of signal to the mixer
On/Off switch, power LED
1/4" Output jack

Oscillators A and B are mixed differently than C and D.  This gives a unique way of blending all or some of the oscillators.. Master volume controls the output signal to an amp, computer, other mixer, or  ... .

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