Bass Guitar Hardware Repairs, Notes, and Modifications

Charles Eric LaForest, PhD., GateForge Consulting, Ltd.

Bass guitar was supposed to be my hobby away from work but I could not escape the technical aspects. So I made the best of it.

• Jackson Spectra: Overview, Electronics, and some Fixes and Upgrades
• Modifying and Improving the Behringer BDI21
• Bass Guitar Setup Notes
• Characterizing Magnetic Guitar Pickups (and Other Large Inductors)
• Replacing a Germanium Diode with a Silicon Diode
• Power Supply and Bias for the TL072 Op Amp
• Filtering Input Buffer
• Quasi-Log Output Buffer
• Active Quasi-Log Boost/Cut Output Buffer
• Even-Only Harmonics Generator
• Fourth-order High Pass Filter with Grounded Gyrator
• Fourth-order Low Pass Filter with Floating Gyrator