Akashic Guitar effects circuit lookup

Parts · ICs

TLE2074

Quad JFET-Input Op-Amp DIP-14 / SOIC-14.20 circuits use this part. Listed as: Quad Op Amp TL074, TLC2274 Any pin compa; or, TL074.

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 34), 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

PartInputSupplyGBWSlewNoiseIqBoards
TLE20744.5–38 V10.6 MHz32 V/µs17 nV2.4 mA20

Fast, low-bias quad drawing about 2.4 mA per amplifier; the input range reaches the positive rail but stops 4 V above the negative one.

Fits the same socket

PartInputSupplyGBWSlewNoiseIqBoardsDiffers
TL974RR out2.7–12 V10.6 MHz2.48 mA112 V max, not for 18 V; rail-to-rail output. Low-noise quad (4.4 nV/√Hz at 100 kHz) limited to 12 V total; it will not survive an 18 V rail.
TL074JFET4.5–40 V5.25 MHz20 V/µs37 nV1.4 mA315JFET input; inputs must stay 4 V above the negative rail.
TL084JFET4.5–40 V5.25 MHz20 V/µs37 nV1.4 mA15JFET quad; inputs must stay 4 V above the negative rail.
LF347JFET7–36 V3 MHz13 V/µs18 nV2 mA20JFET quad; common-mode range must stay 4 V inside each rail.
MC33179bipolar4–36 V5 MHz2 V/µs7.5 nV0.425 mA2much slower. Quad version of the MC33178 in the standard quad pinout.
TLC2274CMOS, RR out4.4–16 V2.25 MHz3.6 V/µs9 nV1.2 mA116 V max, not for 18 V; input range reaches the negative rail; rail-to-rail output; much slower. CMOS rail-to-rail-output quad limited to 16 V total.
TL064JFET10–30 V1 MHz3.5 V/µs30 nV0.2 mA17rated from 10 V; much slower. Low-power JFET quad at 200 µA per amplifier.
TLC27M4AINCMOS3–16 V1.1 MHz4.5 V/µs32 nV0.06 mA816 V max, not for 18 V; input range reaches the negative rail; much slower. Low-power CMOS quad limited to 16 V; the input range includes the negative rail (single-supply friendly).
LMC660CNCMOS, RR out4.75–15.5 V1.4 MHz1.1 V/µs22 nV0.4 mA415.5 V max, not for 18 V; input range reaches the negative rail; rail-to-rail output; much slower. CMOS quad limited to 15.5 V total; rail-to-rail output and an input range that includes ground.
LM348bipolar8–36 V1 MHz0.5 V/µs0.6 mA2much slower. Four 741-class amplifiers in the LM324/TL074 pinout.
FaceplateCircuitBased onCategoryVendorBoxKnobsPriceBOM
God City Instruments Murdock Eq Vero17×18 Verified TL072 · TLE2074 God City Instruments Murdock Eq God City Instruments Murdock EqBoostDirtbox Layouts—1— 22
God City Instruments Murdock Plus Eq/OD Vero20×19 Verified TL072 · TLE2074 God City Instruments Murdock Plus Eq/OD God City Instruments Murdock Plus Eq/ODDistortionDirtbox Layouts—2— 29
VFE Choral Reef Analog Chorus Vero32×25 Unverified 2N5087 · 2N5088 · CD4047 · LM358 VFE Choral Reef Analog Chorus VFE Choral Reef Analog ChorusVibrato / ChorusDirtbox Layouts—5— 53
VFE Dark Horse Vero21×20 Verified 7660S · ICL7660SCPAZ · TLE2074 VFE Dark Horse VFE Dark HorseDistortionDirtbox Layouts—5— 32
VFE Pedals Blueprint Delay Vero26×27 Unverified 78L05 · LM358 · PT2399 · TC1044 VFE Blueprint Delay VFE Blueprint DelayDelayDirtbox Layouts—6— 43
VFE Shredmeister Vero19×22 Unverified 7660S · ICL7660S · TLE2074 VFE Shredmeister VFE ShredmeisterDistortionDirtbox Layouts—6— 38
VFE Springboard Reverb Vero18×19 Verified 7660S · 78L05 · ICL7660S · TLE2074 VFE Springboard Reverb VFE Springboard ReverbReverbDirtbox Layouts—6— 32
VFE The Triplet Vero23×27 Unverified 2N3906 · 2N5088 · 2N5457 · 7660S VFE The Triplet VFE The TripletCompressorDirtbox Layouts—6— 42
VFE Woodchipper Vero22×28 Verified 2N5088 · 7660S · ICL7660S · TLE2074 VFE Woodchipper VFE WoodchipperFuzzDirtbox Layouts—6— 38
Murdock Plus TL072 · TL072P · TLE2074 125B—DistortionGod City Instruments125B3$10.00 53
Blueprint LM358 · PT2399 · TLE2074 Analog-Voiced Delay · 1590B Analog-Voiced DelayDelayMadbean1590B6— 43
Dark Horse TLE2074 Hard Edge Distortion Hard Edge DistortionDistortionMadbean—3— 45
Springboard TLE2074 Echo-Verb · 1590B Echo-VerbDelayMadbean1590B6— 29
The Triplet 2N3906 · 2N5088 · 2N5457 · TLE2074 Comp + Octave + Dist · 1590B Comp + Octave + DistDistortionMadbean1590B6— 35
Tractor Beam 2N5952 · LM358 · TLE2074 Analog Phaser · 1590B Analog PhaserPhaserMadbean1590B3— 36
VFE MiniMu LM358 · NSL32-R3 · OPA134 · TLE2074 Optical AutoWah Optical AutoWahWah / EnvelopeMadbean—3— 52
White Horse 2N5088 · BS170 · TLE2074 Optical Compressor! · 1590B Optical Compressor!CompressorMadbean1590B7— 23
The Sentient Machine Vero CD4066 · TL062 · TL074 · TLE2074 125B—Wah / EnvelopeParasit Studio125B2— 58
Trojan Horse TC1044 · TC1044SCPA · TLE2074 VFE Dark Horse · 125B VFE Dark HorseFuzzPedalPCB125B6$12.00 51
Zorg Effects - Glorious Basstar Vero28×25 Verified 7660S · ICL7660S · TLE2074 Zorg - Glorious Basstar Zorg - Glorious BasstarOverdriveTagboard Effects—8— 29