Parts · ICs
LM324
Quad BJT-Input Op-Amp DIP-14 / SOIC-14.100 circuits use this part. Listed as: IC LM324 DIP14; Op Amp; IC.
Datasheet · from ti.com
Substitutes same socket
Parts that fit the same socket: the same function, pin count and pinout. The figures are read off each part's datasheet (this one's from page 11), typical where the sheet gives a typical value, otherwise the maximum. Closest first; the last column says what differs. A different part can change the sound, and a circuit may lean on one particular figure, so read the build document's notes before you swap.
This part
| Part | Input | Supply | GBW | Slew | Noise | Iq | Boards |
|---|---|---|---|---|---|---|---|
| LM324 | bipolar | 3–30 V | 1.2 MHz | 0.5 V/µs | 35 nV | 0.35 mA | 100 |
Input range includes the negative rail and the output nears ground, but it is slow and shows crossover distortion.
Fits the same socket
| Part | Input | Supply | GBW | Slew | Noise | Iq | Boards | Differs |
|---|---|---|---|---|---|---|---|---|
| 3403 | bipolar | 5–30 V | 1 MHz | 0.6 V/µs | 0.7 mA | 17 | 741-class quad that runs from a single supply; the input range includes the negative rail and the output has a class AB stage. | |
| LM348 | bipolar | 8–36 V | 1 MHz | 0.5 V/µs | 0.6 mA | 2 | Four 741-class amplifiers in the LM324/TL074 pinout. | |
| JRC2902 | bipolar | 3–32 V | 0.5 MHz | 0.5 V/µs | 0.25 mA | 2 | LM324-class single-supply quad with crossover distortion; the DIP14 (NJM2902N) is listed as discontinued. | |
| LF444 | JFET | ?–36 V | 1 MHz | 1 V/µs | 35 nV | 0.15 mA | 4 | JFET input. Low-power JFET quad at about 150 µA per amplifier. |
| LMC660CN | CMOS, RR out | 4.75–15.5 V | 1.4 MHz | 1.1 V/µs | 22 nV | 0.4 mA | 4 | CMOS input; 15.5 V max, not for 18 V; rail-to-rail output. CMOS quad limited to 15.5 V total; rail-to-rail output and an input range that includes ground. |
| TLC2264 | CMOS, RR out | 4.4–16 V | 0.73 MHz | 0.55 V/µs | 12 nV | 0.21 mA | 3 | CMOS input; 16 V max, not for 18 V; rail-to-rail output. CMOS rail-to-rail-output quad limited to 16 V total. |
| TLC27M4AIN | CMOS | 3–16 V | 1.1 MHz | 4.5 V/µs | 32 nV | 0.06 mA | 8 | CMOS input; 16 V max, not for 18 V. Low-power CMOS quad limited to 16 V; the input range includes the negative rail (single-supply friendly). |
| TL064 | JFET | 10–30 V | 1 MHz | 3.5 V/µs | 30 nV | 0.2 mA | 17 | JFET input; rated from 10 V. Low-power JFET quad at 200 µA per amplifier. |
| MC33179 | bipolar | 4–36 V | 5 MHz | 2 V/µs | 7.5 nV | 0.425 mA | 2 | much faster, may oscillate in a slow part's place. Quad version of the MC33178 in the standard quad pinout. |
| TL974 | RR out | 2.7–12 V | 10.6 MHz | 2.48 mA | 1 | 12 V max, not for 18 V; rail-to-rail output; draws 2.48 mA per amplifier; much faster, may oscillate in a slow part's place. Low-noise quad (4.4 nV/√Hz at 100 kHz) limited to 12 V total; it will not survive an 18 V rail. |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| "That" compressor LM324 · TL072 | Bent Fishbowl That Compressor | Compressor | Bent Fishbowl | — | — | — | 28 | |
| Chewborg Envelope Filter CD4007 · LM324 · TL072 · TL074 125B | — | Wah / Envelope | Bent Fishbowl | 125B | 3 | — | 63 | |
| Definite Phase 2N3904 · 4093N · 4558 · CD4093 ProphecySound Systems Infinitphase | ProphecySound Systems Infinitphase | Phaser | Dead End FX | — | 19 | $35.00 | 199 | |
| Mr. Multi 2SK30A-GR · LM324 · LM324N · LM358 Korg FK-2 Mr. Multi | Korg FK-2 Mr. Multi | Wah / Envelope | Dead End FX | — | 2 | $15.00 | 85 | |
| Zuul 2SC1815-BL · 2SK30A-Y · 4558 · LM324 Guyatone PS-027 Loop Gate · 1590BBS | Guyatone PS-027 Loop Gate | Utility | Dead End FX | 1590BBS | 3 | $15.00 | 87 | |
| "Up, Down, Daddy!" 2N5457 · CD4013 · J201 · LM324 Pearl OC-07 Octaver · 1590B | Pearl OC-07 Octaver | Octave / Pitch | delyk PCBs | 1590B | 3 | — out | 103 | |
| 7Dwarves Auto Wah 2N5457 · 78L05 · BC550C · LM13700 1590B | — | Wah / Envelope | delyk PCBs | 1590B | 4 | — | 56 | |
| Boss DB-5 Driver Vero33×30 Unverified 2N3906 · 2N5089 · 2SK30A-GR · 7660S Boss DB-5 DRIVER | Boss DB-5 DRIVER | Compressor | Dirtbox Layouts | — | 5 | — | 61 | |
| Colorsound Vocalizer Vero21×22 Unverified 2N3906 · CA3080 · CA3080E · LM324 Colorsound Vocalizer | Colorsound Vocalizer | EQ / Filter | Dirtbox Layouts | — | 3 | — | 32 | |
| Earthquaker Devices Sea Machine Vero26×25 Verified 7805 · LM324 · PT2399 · TL074 EarthQuaker Devices Sea Machine | EarthQuaker Devices Sea Machine | Vibrato / Chorus | Dirtbox Layouts | — | 6 | — | 30 | |
| Earthquaker Devices Space Spiral Vero27×25 Verified 7805 · LM324 · LM833 · PT2399 EarthQuaker Devices Space Spiral | EarthQuaker Devices Space Spiral | Delay | Dirtbox Layouts | — | 6 | — | 37 | |
| Electro Harmonix Bad Stone Vero33×33 Verified 2N5088 · 4558 · CD4009 · CD4009B Electro-Harmonix Bad Stone | Electro-Harmonix Bad Stone | Vibrato / Chorus | Dirtbox Layouts | — | 3 | — | 43 | |
| Electro Harmonix Octave Multiplexer Vero28×28 Unverified 2N5088 · 2N5459 · CD4013 · LM324 Electro-Harmonix Octave Multiplexer | Electro-Harmonix Octave Multiplexer | Octave / Pitch | Dirtbox Layouts | — | 4 | — | 13 | |
| Electro Harmonix Pulsar - Big box version Vero28×23 Unverified 3080 · 78L09 · CA3080 · LM324 Electro-Harmonix Pulsar | Electro-Harmonix Pulsar | Vibrato / Chorus | Dirtbox Layouts | — | 3 | — | 39 | |
| Electro Harmonix Small Stone V3 Vero28×28 Verified 2N5088 · LM13600 · LM324 Electro-Harmonix Small Stone | Electro-Harmonix Small Stone | Vibrato / Chorus | Dirtbox Layouts | — | 1 | — | 38 | |
| Electro Harmonix The Worm / Madbean Charlatan Vero29×34 Unverified 2N5088 · 78L15 · 9203 · LM324 Electro-Harmonix The Worm / Madbean Charlatan | Electro-Harmonix The Worm / Madbean Charlatan | EQ / Filter | Dirtbox Layouts | — | 2 | — | 50 | |
| Fuzzhead Fx Dronestortion Mk. I Vero19×17 Verified LM324 Fuzzhead Fx Dronestortion Mk. I | Fuzzhead Fx Dronestortion Mk. I | Distortion | Dirtbox Layouts | — | 3 | — | 40 | |
| Fuzzhead Fx Freya Fuzz Vero20×13 Verified LM324 Fuzzhead Fx Freya Fuzz | Fuzzhead Fx Freya Fuzz | Distortion | Dirtbox Layouts | — | 4 | — | 32 | |
| Guyatone PS-020 Bass Exciter & Limiter Vero26×30 Unverified 2N5088 · 3080 · 4558 · CA3080 Guyatone PS-020 Bass Exciter & Limiter | Guyatone PS-020 Bass Exciter & Limiter | Compressor | Dirtbox Layouts | — | 4 | — | 43 | |
| Guyatone PS-021 Guitar Exciter & Compressor Vero26×30 Unverified 2N5088 · 3080 · 4558 · CA3080 Guyatone PS-021 Guitar Exciter & Compressor | Guyatone PS-021 Guitar Exciter & Compressor | Compressor | Dirtbox Layouts | — | 4 | — | 43 | |
| Korg FK-2 Mr. Multi Vero30×30 Unverified 2SK30-GR · LM324 · LM358 Korg FK-2 Mr. Multi | Korg FK-2 Mr. Multi | EQ / Filter | Dirtbox Layouts | — | 2 | — | 39 | |
| Lell Heavy Metal DEQ-700 Vero20×28 Unverified 1458 · LM324 Lell Heavy Metal DEQ-700 | Lell Heavy Metal DEQ-700 | Distortion | Dirtbox Layouts | — | 5 | — | 40 | |
| Moody Sounds Octortion Vero18×14 Verified LM324 Moody Sounds Octortion | Moody Sounds Octortion | Distortion | Dirtbox Layouts | — | 4 | — | 23 | |
| The Gristleizer Vero21×26 Verified 1458 · 2N3819 · 2N3904 · 2N3906 Gristleizer | Gristleizer | EQ / Filter | Dirtbox Layouts | — | 4 | — | 38 | |
| Jocelyn Bell CA3080 · LM324 · TL074 Electro-Harmonix Pulsar · 125B | Electro-Harmonix Pulsar | Tremolo | Effects Layouts | 125B | 3 | $10.00 | 61 | |
| Mad Professor Snow White AutoWah Perfboard Verified 2N5457 · 7805 · BC550C · LM13700 Mad Professor Snow White AutoWah · 1590B | Mad Professor Snow White AutoWah | Wah / Envelope | Effects Layouts (blog) | 1590B | 4 | — | 33 | |
| Alpha drum 2732 · CA3080 · CD4040 · CD4046 | — | Ring Mod / Synth | Experimentalists Anonymous | — | 2 | — | 62 | |
| Amp with Tunable Filter LM324 · LM386 | — | EQ / Filter | Experimentalists Anonymous | — | — | — | 35 | |
| Complex Waveform Generator 1458 · 4015 · 4050 · 4070 | — | Ring Mod / Synth | Experimentalists Anonymous | — | — | — | 16 | |
| Cookbook Fuzz LM324 | — | Fuzz | Experimentalists Anonymous | — | 2 | — | 9 | |
| DOD 825 2N5089 · 4558 · 7812 · 7912 DOD 825 | DOD 825 | Compressor | Experimentalists Anonymous | — | 7 | — | 58 | |
| DOD 908B 2N5089 · 4558 · 7805 · 7812 DOD 908B | DOD 908B | Delay | Experimentalists Anonymous | — | 7 | — | 68 | |
| DOD FX35 Octoplus 1458 · 2N5088 · 4007 · 4013 DOD FX35 Octoplus | DOD FX35 Octoplus | Vibrato / Chorus | Experimentalists Anonymous | — | 3 | — | 44 | |
| DOD FX67 Dual Turbo Chorus 1458 · 2N4124 · 2N5088 · CD4007 DOD FX67 Dual Turbo Chorus | DOD FX67 Dual Turbo Chorus | Vibrato / Chorus | Experimentalists Anonymous | — | 4 | — | 54 | |
| DOD R825 2N5089 · 4558 · 7812 · 7912 DOD R825 | DOD R825 | Compressor | Experimentalists Anonymous | — | 7 | — | 57 | |
| EFM Bass Ace 16F84-04/P · 2N3904 · 2N3906 · 4013 | — | Bass | Experimentalists Anonymous | — | 8 | — | 162 | |
| EHX space drum 1048 · 1458 · 2N5088 · ? Electro-Harmonix space drum | Electro-Harmonix space drum | Ring Mod / Synth | Experimentalists Anonymous | — | 6 | — | 43 | |
| Electro Harmonix Badstone 1 2N5088 · 4009 · 4558 · CD4009 Electro-Harmonix Badstone 1 | Electro-Harmonix Badstone 1 | Phaser | Experimentalists Anonymous | — | 3 | — | 81 | |
| Electro Harmonix Echo Flanger 1 2N5087 · 311 · 324 · 78L15A Electro-Harmonix Echo Flanger 1 | Electro-Harmonix Echo Flanger 1 | Flanger | Experimentalists Anonymous | — | 3 | — | 52 | |
| Electro Harmonix Electric Mistress 2 2N5087 · 2N5088 · 311 · 324 Electro-Harmonix Electric Mistress | Electro-Harmonix Electric Mistress | Flanger | Experimentalists Anonymous | — | 3 | — | 57 | |
| Electro Harmonix Electric Mistress 3 2N5087 · 311 · 324 · 4013 Electro-Harmonix Electric Mistress | Electro-Harmonix Electric Mistress | Flanger | Experimentalists Anonymous | — | 3 | — | 57 | |
| Electro Harmonix Zipper 2N5088 · 4558 · ? · LM324 Electro-Harmonix Zipper | Electro-Harmonix Zipper | Other | Experimentalists Anonymous | — | — | — | 75 | |
| Electro Harmonix Zipper 2N5088 · 4558 · ? · LM324 Electro-Harmonix Zipper | Electro-Harmonix Zipper | Fuzz | Experimentalists Anonymous | — | — | — | 75 | |
| Mini Synth like Super DF-2 Page 1 4013 · 4016 · 4046 · BC549 | — | Ring Mod / Synth | Experimentalists Anonymous | — | 1 | — | 76 | |
| Mini Synth like Super DF-2 Page 4 4013 · 4016 · 4046 · BC549 | — | Ring Mod / Synth | Experimentalists Anonymous | — | — | — | 76 | |
| Mini Synth like Super DF-2 Page 5 4013 · 4016 · 4046 · BC549 | — | Ring Mod / Synth | Experimentalists Anonymous | — | — | — | 75 | |
| Moog Taurus (PDF) BC550C · CD4011 · CD4011B · CD4066 | — | Ring Mod / Synth | Experimentalists Anonymous | — | 5 | — | 90 | |
| Old-style ring mod LM324 | — | Ring Mod / Synth | Experimentalists Anonymous | — | 2 | — | 27 | |
| Simple BL3208 echo 2SC945 · BA4450 · LM324 · MN3008 | — | Delay | Experimentalists Anonymous | — | 2 | — | 85 | |
| Single OA tremolo LM324 | — | Tremolo | Experimentalists Anonymous | — | 2 | — | 14 | |
| Stereo test tone oscillator 1458 · 324 · LM324 | — | Ring Mod / Synth | Experimentalists Anonymous | — | — | — | 25 | |
| Synbal 741 · BC108B · CA3080 · CD40106 | — | Ring Mod / Synth | Experimentalists Anonymous | — | 8 | — | 91 | |
| Syntom II 1458 · 78M12 · BC108B · CA1458 | — | Ring Mod / Synth | Experimentalists Anonymous | — | — | — | 87 | |
| Triangle Square and Sine Test Oscillator 1458 · 324 · LM324 | — | Ring Mod / Synth | Experimentalists Anonymous | — | 3 | — | 25 | |
| Waveform Multiplier 1458 · LM1458 · LM324 | — | Ring Mod / Synth | Experimentalists Anonymous | — | — | — | 81 | |
| 7 of Dwarves Auto Wah 2N5457 · 78L05 · BC550 · LM13700 Mad Professor Snow White AutoWah · 1590B | Mad Professor Snow White AutoWah | Wah / Envelope | Fuzz Dog | 1590B | 4 | £37.20 | 58 | |
| Ocean Engine Chorus 78L05 · LM324 · PT2399 · TL074 EarthQuaker Devices Sea Machine · 1590B | EarthQuaker Devices Sea Machine | Vibrato / Chorus | Fuzz Dog | 1590B | 6 | £56.40 | 69 | |
| Stellar Spinner Delay 78L05 · LM324 · LM324N · LM833 EarthQuaker Devices Space Spiral · 1590B | EarthQuaker Devices Space Spiral | Delay | Fuzz Dog | 1590B | 6 | £57.60 | 73 | |
| Analog Octave Down 2N3904 · 4013N · CD4013 · J201/2SK30A Boss OC-2 | Boss OC-2 | Octave / Pitch | Griffin Effects | — | 1 | $16.00 | 61 | |
| Crazy Frog Auto Wah 2N5458 · 78L05 · BC550 · LM13700 Mad Professor Snow White · 1590B | Mad Professor Snow White | Wah / Envelope | HotKits | 1590B | 4 | — out | 32 | |
| Hum Suppressor BC547C · BF245A · LM324 1590B | — | Noise Gate | HotKits | 1590B | 3 | $7.00 | 29 | |
| Bloodstone Phase Shifter 2N5088 · 4558 · CD4009UB · CD4009UBE Electro-Harmonix Bad Stone | Electro-Harmonix Bad Stone | Phaser | Lectric-FX | — | 3 | $13.99 | 87 | |
| Countdown Phaser 1458 · CD4007UB · CD4007UBE · CD4016 | — | Phaser | Lectric-FX | — | 5 | $17.99 | 170 | |
| Dandy Horse Echo Chorus/Flanger 2N5087 · 2N5088 · 4558 · CD4013 | — | Vibrato / Chorus | Lectric-FX | — | 4 | $18.99 | 156 | |
| Flyleaf Envelope Follower 2N5088 · 2N5485 · 4558 · LM324 Electro-Harmonix Zipper | Electro-Harmonix Zipper | Wah / Envelope | Lectric-FX | — | 2 | $12.99 | 81 | |
| Old Chap Flanger 2N5087 · 4558 · 78L15 · CD4013 Electro-Harmonix Deluxe Electric Mistress | Electro-Harmonix Deluxe Electric Mistress | Flanger | Lectric-FX | — | 3 | $15.99 | 95 | |
| BigBottoms 2N5088 · 2N5457 · 4558 · CD4013 Electro-Harmonix Octave Multiplexer · 125B | Electro-Harmonix Octave Multiplexer | Octave / Pitch | Madbean | 125B | 3 | $13.00 | 74 | |
| Charlatan 2N5088 · LM324 · LT1054 Electro-Harmonix The Worm doc updated Sept. 2026 · 1590BB | Electro-Harmonix The Worm doc updated Sept. 2026 | Distortion | Madbean | 1590BB | 2 | $14.00 | 101 | |
| CurrentLover 2N3904 · 2N5087 · 4558 · BBD Electro-Harmonix Electric Mistress · 1590BB | Electro-Harmonix Electric Mistress | Distortion | Madbean | 1590BB | 5 | $14.00 | 86 | |
| HoneyDripper 4558 · CA3080 · LM324 · LT1054 Colorsound Dipthonizer · 125B | Colorsound Dipthonizer | Distortion | Madbean | 125B | 2 | $15.00 | 89 | |
| JunkTrunk LM13700 · LM324 · TL074 Chunk Systems Agent 00Funk · 125B | Chunk Systems Agent 00Funk | Distortion | Madbean | 125B | 4 | $12.00 out | 54 | |
| Polytrog 1458 · 2N3904 · 2N5087 · 2N5088 Electro-Harmonix Polyphase · 1590BB | Electro-Harmonix Polyphase | Distortion | Madbean | 1590BB | 2 | $16.00 | 141 | |
| 3-band EQ LM258P/TL072 · LM324N/TL074 | — | EQ / Filter | OP Electronics | — | 4 | €1.50 out | 27 | |
| Electric Flanger 2N3904 · 2N5087 · 2N5088 · 4558 Electro-Harmonix Electric Mistress · 1590BB | Electro-Harmonix Electric Mistress | Flanger | OP Electronics | 1590BB | 5 | €2.00 out | 84 | |
| Beverly Bitcrusher Vero ADC0804LCWM · LM324 | — | Boost | Parasit Studio | — | 2 | — | 27 | |
| C82 Micro 2N3904 · 78L05 · AVR32DB28 · LM324 Console 84 | Console 84 | Fuzz | Parasit Studio | — | 4 | — | 44 | |
| Green Currant Tremolo Vero LM324 · TDA7052 · TDA7052A · TL072 1590B | — | Tremolo | Parasit Studio | 1590B | 2 | — | 50 | |
| Salad Days CD4013 · CD4060 · LM324 · TL074 | — | Tremolo | Parasit Studio | — | 5 | — | 56 | |
| The Phase Locked Fuzz 2N3904 · 2N3906 · CD4013 · CD4069 | — | Fuzz | Parasit Studio | — | 4 | — | 56 | |
| Electric Lover Flanger 2N3904 · 2N5087 · 4013N · 4558 Electro-Harmonix Electric Mistress · 1590BB | Electro-Harmonix Electric Mistress | Flanger | PCB Guitar Mania | 1590BB | 6 | €11.90 out | 88 | |
| Master Sampler & Hodler 2N3904 · 2N3906 · 2N5457 · 7660S Maestro FSH-1 Filter Sample / Hold · 1590BB | Maestro FSH-1 Filter Sample / Hold | Tremolo | PCB Guitar Mania | 1590BB | 5 | €11.90 out | 73 | |
| Poly-face 1458 · 2N3904 · 2N5087 · 2N5088 Polyphaser EHX | Polyphaser EHX | Phaser | PCB Guitar Mania | — | 6 | €19.90 out | 147 | |
| Sea Device LM324 · TL074 EarthQuaker Devices Sea Machine · 125B | EarthQuaker Devices Sea Machine | Vibrato / Chorus | PCB Guitar Mania | 125B | 4 | €11.90 out | 68 | |
| Sea Device SMD LM324 · PT2399 · TL074 EarthQuaker Devices Sea Machine · 125B | EarthQuaker Devices Sea Machine | Vibrato / Chorus | PCB Guitar Mania | 125B | 4 | €21.90 out | 19 | |
| Soviet Drive 2N5089 · 2N5116 · LM324 LEL` DD · 125B | LEL` DD | Distortion | PCB Guitar Mania | 125B | 5 | €11.90 out | 67 | |
| Sea Mashine 78L05 · LM324 · PT2399 · TL074 EarthQuaker Devices Sea Machine | EarthQuaker Devices Sea Machine | Vibrato / Chorus | PCBWay: Glory to Ukraine | — | 6 | — | 30 | |
| Dark Rift Delay 78L05 · LM324 · LM324A · LM833 EarthQuaker Devices Space Spiral · 125B | EarthQuaker Devices Space Spiral | Delay | PedalPCB | 125B | 6 | $12.00 | 74 | |
| Sea Horse L78L05 · LM324 · PT2399 · TL074 EarthQuaker Devices Sea Machine · 125B | EarthQuaker Devices Sea Machine | Vibrato / Chorus | PedalPCB | 125B | 6 | $12.00 | 70 | |
| Mad Professor Snow White Auto Wah Vero 2N5457 · 7805 · BC550 · LM324 Mad Professor Snow White AutoWah | Mad Professor Snow White AutoWah | Wah / Envelope | Revolution Deux | — | 4 | — | 60 | |
| Dipper Compressor LM324 · TL072 Bent Fishbowl That Compressor · 125B | Bent Fishbowl That Compressor | Compressor | RWL Pedals | 125B | 5 | — | 43 | |
| Triplicator Stereo Triple Tracker with Effects Loops 7805 · 7805T · BC549 · ES56033E | — | Other | Scientific Guitarist | — | 10 | — | 130 | |
| Carl Martin Rock Drive Vero21×18 Verified LM324 Carl Martin Rock Drive | Carl Martin Rock Drive | Distortion | Tagboard Effects | — | 4 | — | 32 | |
| Chunk Systems - Agent 00Funk Vero29×23 Verified LM13700 · LM324 · TL074 Chunk Systems Agent 00Funk | Chunk Systems Agent 00Funk | EQ / Filter | Tagboard Effects | — | 4 | — | 30 | |
| Earthquaker Devices Space Spiral Vero23×28 Verified 78L05 · LM324 · LM324A · LM833 EarthQuaker Devices Space Spiral · 125B | EarthQuaker Devices Space Spiral | Delay | Tagboard Effects | 125B | 6 | — | 39 | |
| Electro Harmonix Octave Multiplexer Vero26×21 Verified 2N5459 · 4013 · CD4013 · LM324 Electro-Harmonix Octave Multiplexer | Electro-Harmonix Octave Multiplexer | Octave / Pitch | Tagboard Effects | — | 4 | — | 30 | |
| Electro Harmonix Small Stone Vero31×22 Verified BC337 · LM13700 · LM324 Electro-Harmonix Small Stone | Electro-Harmonix Small Stone | Phaser | Tagboard Effects | — | 1 | — | 37 | |
| Foxx / Sears Phasing Pedal Vero Unverified LM324 · PN4302 Foxx Sears Phasing Pedal | Foxx Sears Phasing Pedal | Phaser | Tagboard Effects | — | 2 | — | 28 | |
| Guyatone PS-021 Guitar Exciter / Compressor Vero30×22 Unverified 2N5088 · 3080 · 4558 · CA3080 Guyatone PS-021 Guitar Exciter & Compressor · 125B | Guyatone PS-021 Guitar Exciter & Compressor | Compressor | Tagboard Effects | 125B | 4 | — | 36 | |
| Mad Professor Snow White Autowah Vero20×29 Verified 2N5457 · 7805 · BC550 · LM13700 Mad Professor Snow White AutoWah · 1590B | Mad Professor Snow White AutoWah | EQ / Filter | Tagboard Effects | 1590B | 4 | — | 34 | |
| Madbean Gravity Wave (Earthquaker Devices Sea Machine) Vero30×24 Verified 7805 · LM324 · PT2399 · TL072 EarthQuaker Devices Sea Machine | EarthQuaker Devices Sea Machine | Vibrato / Chorus | Tagboard Effects | — | 6 | — | 31 |