UIUC Physics 406
Acoustical Physics of Music
Student Projects/Experimental Results
Spring Semester 2001:

1. Wesley Cheong measured the effect of varying the AC line voltage/Heater Voltage on Cathode Current in 12AX7 Tubes.

• Measuring the Effect of Heater Voltage on Cathode Current in a 12AX7 Vacuum Dual-Triode

2. Tony Gallagher built an op-amp based distortion box.

• Distortion Box

3. Brian Large built a Tweed-Style Deluxe Amp.

• Building A Vacuum Tube Amplifier

4. Jared Mehl built a Solid-State Theremin.

• A Simple Theremin Project

5. Jason Mock carried out some experiments in psychoacoustics/physics of human hearing.

• Experiments in Psychoacoustics

6. Chris Needham also built a Solid-State Theremin.

• To Build a Theremin

7. Bill Paine built a "Chimp" Amp - a Champ in a Gorilla Amp Cabinet...

• A Fender Chimp Amp

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8. Tim Patterson also built a Champ Amp - 5F1 circuit, with a "Woody" style cabinet he made.

• Fender Champ Construction

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9. Piya Poongbunkor used a computer-based DAQ system to investigate the frequency response of various speakers and measure/determine (some of) the Thiele-Small parameters.

• Speaker Analysis Using Thiele-Small Parameters

10. Piya Poongbunkor also used a DSP in his ECE320 course to investigate DSP-based audio effects.

• DSP Audio Effects

• Listing of Piya's DSP Flanging Assembler Code (5 kb ASM file - use e.g. Notepad/Wordpad to view)

• Listing of Piya's DSP Wah Assembler Code (13 kb ASM file - use e.g. Notepad/Wordpad to view)

11. Patrick Tarantino also built a Solid-State Theremin.

• Theremin with On-Board Effects

12. Gary Thiakos built an MXR Distortion type fuzz box.

• MXR Distortion

13. Joe Wicks built a "reduced" Princeton 5F2A Amp - using subminiature/pencil tubes!

• A "Reduced" Fender 5F2-A Princeton Amp

• Schematic and Layout Drawing for a "Reduced" Fender 5F2-A Princeton Amp

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