Bill Jehle's Mad Scientist Guitar Lab

@UCT3KOmzmPWkEl20H9ewZeCQ - 1.5K subscribers

Vintage Circuits. Modern Tone. Endless Curiosity. Making and teaching with fearless curiosity — where experimentation, mistakes, and discovery spark real learning.

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Can A Ring Modulator Sound Like a TRIODE? Math Meets Octave Fuzz!

Can A Ring Modulator Sound Like a TRIODE? Math Meets Octave Fuzz! Bill Jehle's Mad Scientist Guitar Lab

3.3K views - 1 week ago

Asymmetrical Clipping Explained (PROOF From a Triode Datasheet)

Asymmetrical Clipping Explained (PROOF From a Triode Datasheet) Bill Jehle's Mad Scientist Guitar Lab

2.2K views - 2 weeks ago

Building A Ring Modulator From Scratch - VIEWER QUESTIONS

Building A Ring Modulator From Scratch - VIEWER QUESTIONS Bill Jehle's Mad Scientist Guitar Lab

298 views - 1 month ago

Building a RING MODULATOR From SCRATCH

Building a RING MODULATOR From SCRATCH Bill Jehle's Mad Scientist Guitar Lab

4.4K views - 1 month ago

Building A Ring Modulator From Scratch! Just OPAMPS

Building A Ring Modulator From Scratch! Just OPAMPS Bill Jehle's Mad Scientist Guitar Lab

1K views - 1 month ago

I Fixed My 40 Year Old Test Box! New Prototyping Rig!

I Fixed My 40 Year Old Test Box! New Prototyping Rig! Bill Jehle's Mad Scientist Guitar Lab

409 views - 1 month ago

How a Diode + LFO Becomes a Ring Mod-Style Guitar Modulator (No Op Amps)

How a Diode + LFO Becomes a Ring Mod-Style Guitar Modulator (No Op Amps) Bill Jehle's Mad Scientist Guitar Lab

199 views - 1 month ago

How a Diode + LFO Becomes a Tremolo-style Guitar Effect (No Op Amps)

How a Diode + LFO Becomes a Tremolo-style Guitar Effect (No Op Amps) Bill Jehle's Mad Scientist Guitar Lab

423 views - 2 months ago

Use a DIODE to SWITCH AUDIO just like a TRUE BYPASS? Active Diode Switch Explained Part 2.

Use a DIODE to SWITCH AUDIO just like a TRUE BYPASS? Active Diode Switch Explained Part 2. Bill Jehle's Mad Scientist Guitar Lab

3.3K views - 2 months ago

A BYPASS Method Almost No One Uses! Active DIODE Bypass Explained

A BYPASS Method Almost No One Uses! Active DIODE Bypass Explained Bill Jehle's Mad Scientist Guitar Lab

3.6K views - 2 months ago

Testing Weird Pedal Setups You NEVER Tried! AC Delco PEDAL Tonestack DEMO

Testing Weird Pedal Setups You NEVER Tried! AC Delco PEDAL Tonestack DEMO Bill Jehle's Mad Scientist Guitar Lab

338 views - 3 months ago

GM AC Delco Pedal BUILD and TEST. How Can This Little Box Change Your Guitar Sound?

GM AC Delco Pedal BUILD and TEST. How Can This Little Box Change Your Guitar Sound? Bill Jehle's Mad Scientist Guitar Lab

1.5K views - 3 months ago

What Makes Old GM Radios Sound Cool? LOUDNESS TAP and TONESTACK Frequency Analysis

What Makes Old GM Radios Sound Cool? LOUDNESS TAP and TONESTACK Frequency Analysis Bill Jehle's Mad Scientist Guitar Lab

2.3K views - 3 months ago

AC Delco Tonestack Frequency Analysis with LTSpice

AC Delco Tonestack Frequency Analysis with LTSpice Bill Jehle's Mad Scientist Guitar Lab

433 views - 3 months ago

Rebuilding a 1970s VOLUME POT with CENTER TAP

Rebuilding a 1970s VOLUME POT with CENTER TAP Bill Jehle's Mad Scientist Guitar Lab

217 views - 3 months ago

Fender Princeton 5F2-A FREQUENCY ANALYSIS / LTSpice TONE STACK Simulation Explained

Fender Princeton 5F2-A FREQUENCY ANALYSIS / LTSpice TONE STACK Simulation Explained Bill Jehle's Mad Scientist Guitar Lab

463 views - 3 months ago

Imperial Radio Guitar Amp REBUILD Done

Imperial Radio Guitar Amp REBUILD Done Bill Jehle's Mad Scientist Guitar Lab

269 views - 3 months ago

DIY Fender Princeton-Style Volume & Tone Control with Bypass Switch | Experimental Tube Amp Series

DIY Fender Princeton-Style Volume & Tone Control with Bypass Switch | Experimental Tube Amp Series Bill Jehle's Mad Scientist Guitar Lab

787 views - 4 months ago

7 Pin Tube Universal Gain Stage DEMO and SETUP

7 Pin Tube Universal Gain Stage DEMO and SETUP Bill Jehle's Mad Scientist Guitar Lab

279 views - 4 months ago

7 Pin Tube Universal Gain Stage Build from SPARE PARTS

7 Pin Tube Universal Gain Stage Build from SPARE PARTS Bill Jehle's Mad Scientist Guitar Lab

534 views - 4 months ago

Vintage Tube Tester Calibration: Making It Trustworthy Again

Vintage Tube Tester Calibration: Making It Trustworthy Again Bill Jehle's Mad Scientist Guitar Lab

288 views - 4 months ago

Knight Series 600 TUBE TESTER RESTORATION Part 2

Knight Series 600 TUBE TESTER RESTORATION Part 2 Bill Jehle's Mad Scientist Guitar Lab

216 views - 4 months ago

Knight Series 600 TUBE TESTER RESTORATION Part 1

Knight Series 600 TUBE TESTER RESTORATION Part 1 Bill Jehle's Mad Scientist Guitar Lab

368 views - 4 months ago

BAD Multitap TRANSFORMER in Knight 600 Tube Tester?

BAD Multitap TRANSFORMER in Knight 600 Tube Tester? Bill Jehle's Mad Scientist Guitar Lab

188 views - 5 months ago

Imperial Radio GUITAR AMP Testing BAD Tubes

Imperial Radio GUITAR AMP Testing BAD Tubes Bill Jehle's Mad Scientist Guitar Lab

287 views - 5 months ago

Imperial TUBE RADIO to GUITAR AMP Conversion

Imperial TUBE RADIO to GUITAR AMP Conversion Bill Jehle's Mad Scientist Guitar Lab

340 views - 5 months ago

Precision resistor with a FILE?

Precision resistor with a FILE? Bill Jehle's Mad Scientist Guitar Lab

276 views - 5 months ago

Check Guitar Pickup DC VOLTS & OHMS

Check Guitar Pickup DC VOLTS & OHMS Bill Jehle's Mad Scientist Guitar Lab

160 views - 6 months ago

I don’t make the rules. I’m just here to exploit them.

I don’t make the rules. I’m just here to exploit them. Bill Jehle's Mad Scientist Guitar Lab

70 views - 1 year ago

What Video Editor (with full on RANT on Adobe)

What Video Editor (with full on RANT on Adobe) Bill Jehle's Mad Scientist Guitar Lab

110 views - 1 year ago

Cigar Box GUITAR AMPLIFIER Notebook Compressor Tremolo fro...

Cigar Box GUITAR AMPLIFIER Notebook Compressor Tremolo fro... Bill Jehle's Mad Scientist Guitar Lab

473 views - 1 year ago

TUBE AMP FEET from pool cue END bumper?! YES!!

TUBE AMP FEET from pool cue END bumper?! YES!! Bill Jehle's Mad Scientist Guitar Lab

29 views - 1 year ago

Leather Wrap on the SPECIAL OVERDRIVE Amp FIRST TRY

Leather Wrap on the SPECIAL OVERDRIVE Amp FIRST TRY Bill Jehle's Mad Scientist Guitar Lab

238 views - 1 year ago

It’s about to get loud in here… just gotta finish up the edits.

It’s about to get loud in here… just gotta finish up the edits. Bill Jehle's Mad Scientist Guitar Lab

33 views - 1 year ago

Control ANY WINDOW even if you are NOT SUPPOSED TO

Control ANY WINDOW even if you are NOT SUPPOSED TO Bill Jehle's Mad Scientist Guitar Lab

760 views - 1 year ago

Cigar Box GUITAR AMPLIFIER Tone Stacks DUMBLE 124 versus 33

Cigar Box GUITAR AMPLIFIER Tone Stacks DUMBLE 124 versus 33 Bill Jehle's Mad Scientist Guitar Lab

144 views - 1 year ago

Cigar Box GUITAR AMPLIFIER Notebook Tone Stacks Demos for PRINCETON and BIG MUFF

Cigar Box GUITAR AMPLIFIER Notebook Tone Stacks Demos for PRINCETON and BIG MUFF Bill Jehle's Mad Scientist Guitar Lab

52 views - 1 year ago

Cigar Box GUITAR AMPLIFIER Notebook (part 3) OP-AMP Demos for PREAMP

Cigar Box GUITAR AMPLIFIER Notebook (part 3) OP-AMP Demos for PREAMP Bill Jehle's Mad Scientist Guitar Lab

129 views - 1 year ago

Product Review: NAMELESS WIRELESS MICROPHONE

Product Review: NAMELESS WIRELESS MICROPHONE Bill Jehle's Mad Scientist Guitar Lab

50 views - 1 year ago

Cigar Box GUITAR AMPLIFIER Notebook (part 2) POWER AMP Demos

Cigar Box GUITAR AMPLIFIER Notebook (part 2) POWER AMP Demos Bill Jehle's Mad Scientist Guitar Lab

137 views - 1 year ago

Cigar Box GUITAR AMPLIFIER Notebook (part 1) SPEAKER DEMOS

Cigar Box GUITAR AMPLIFIER Notebook (part 1) SPEAKER DEMOS Bill Jehle's Mad Scientist Guitar Lab

125 views - 1 year ago

Product reviews, MY NEW BOOK, recording AUDIO, and a very buzzy MICROPHONE…

Product reviews, MY NEW BOOK, recording AUDIO, and a very buzzy MICROPHONE… Bill Jehle's Mad Scientist Guitar Lab

440 views - 2 years ago

Product review: SMART ICARD - RSH Item Tracker, Finder, Locator for Apple Find My

Product review: SMART ICARD - RSH Item Tracker, Finder, Locator for Apple Find My Bill Jehle's Mad Scientist Guitar Lab

1.9K views - 2 years ago

Product review: LEKATO Guitar Pedal Power Supply, True Isolated Pedal Power Supply

Product review: LEKATO Guitar Pedal Power Supply, True Isolated Pedal Power Supply Bill Jehle's Mad Scientist Guitar Lab

1.3K views - 2 years ago

Product review: DARKBEAM UV FLASHLIGHT. The Swiss Army Knife of Flashlights? SCORPIONS!

Product review: DARKBEAM UV FLASHLIGHT. The Swiss Army Knife of Flashlights? SCORPIONS! Bill Jehle's Mad Scientist Guitar Lab

1.8K views - 2 years ago

NEW BOOK… Cigar Box GUITAR AMPLIFIER Notebook

NEW BOOK… Cigar Box GUITAR AMPLIFIER Notebook Bill Jehle's Mad Scientist Guitar Lab

285 views - 2 years ago

Cut the Cord! DIY WIRELESS iPhone Mic. MICROPHONE HACK!

Cut the Cord! DIY WIRELESS iPhone Mic. MICROPHONE HACK! Bill Jehle's Mad Scientist Guitar Lab

79 views - 2 years ago

Three different wireless microphones. One’s good. One sucks!

Three different wireless microphones. One’s good. One sucks! Bill Jehle's Mad Scientist Guitar Lab

32 views - 2 years ago

Extra powerful Transparent Overdrive

Extra powerful Transparent Overdrive Bill Jehle's Mad Scientist Guitar Lab

2.6K views - 2 years ago

VOLTAGE REGULATOR turned into a $2 small cigar box GUITAR AMP! TWO BUCKS!

VOLTAGE REGULATOR turned into a $2 small cigar box GUITAR AMP! TWO BUCKS! Bill Jehle's Mad Scientist Guitar Lab

326 views - 2 years ago

The reVox parts build from broken Cambridge 15. 12AX7 EL84 Hand Wired

The reVox parts build from broken Cambridge 15. 12AX7 EL84 Hand Wired Bill Jehle's Mad Scientist Guitar Lab

632 views - 3 years ago

Mad Scientist Lab: $7.99 Ring Modulator

Mad Scientist Lab: $7.99 Ring Modulator Bill Jehle's Mad Scientist Guitar Lab

427 views - 3 years ago

Repair a Totally Dead Junk SansAmp Classic - The Hard Way

Repair a Totally Dead Junk SansAmp Classic - The Hard Way Bill Jehle's Mad Scientist Guitar Lab

2.7K views - 4 years ago

Mad Scientist Lab: Arkay Signal Generator SG-2 recap… using another schematic.

Mad Scientist Lab: Arkay Signal Generator SG-2 recap… using another schematic. Bill Jehle's Mad Scientist Guitar Lab

166 views - 4 years ago

Turn Off Accidental Scroll Lock in MS Excel

Turn Off Accidental Scroll Lock in MS Excel Bill Jehle's Mad Scientist Guitar Lab

220K views - 4 years ago

Mad Scientist Lab: 12AX7 EL84 test, Fender Princeton, Marshall JCM800, Jackson mod, Dumble

Mad Scientist Lab: 12AX7 EL84 test, Fender Princeton, Marshall JCM800, Jackson mod, Dumble Bill Jehle's Mad Scientist Guitar Lab

400 views - 4 years ago

Mad Scientist Lab: From Electronic Projects For Musicians Ring Modulator to the Theramin

Mad Scientist Lab: From Electronic Projects For Musicians Ring Modulator to the Theramin Bill Jehle's Mad Scientist Guitar Lab

519 views - 4 years ago

Mad Scientist Lab - Pointless Stomp Box

Mad Scientist Lab - Pointless Stomp Box Bill Jehle's Mad Scientist Guitar Lab

125 views - 4 years ago

Mad Scientist Lab EL84 Power Amp Test Harness

Mad Scientist Lab EL84 Power Amp Test Harness Bill Jehle's Mad Scientist Guitar Lab

235 views - 5 years ago

Mad Scientist Lab The 12AX7 Cathode Follower

Mad Scientist Lab The 12AX7 Cathode Follower Bill Jehle's Mad Scientist Guitar Lab

4.3K views - 5 years ago