TLC272

Dual CMOS-Input Op-Amp DIP-8 / SOIC-8.7 circuits use this part.

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 6), 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
TLC272	CMOS	3–16 V	4.5 MHz	21 V/µs	10.8 nV	0.56 mA	7

CMOS dual limited to 16 V total; the input range includes the negative rail.

Fits the same socket

Part	Input	Supply	GBW	Slew	Noise	Iq	Boards	Differs
LF412	JFET	7–36 V	4.5 MHz	21 V/µs	18 nV	0.56 mA	4	JFET input. FET-input dual with standard pinout per the drawing (the 2026 pin table misprints pins 4 to 8).
TL072	JFET	4.5–40 V	5.25 MHz	20 V/µs	37 nV	1.4 mA	1338	JFET input. JFET input; inputs must stay 4 V above the negative rail, and the input range reaches the positive rail.
TL082	JFET	4.5–40 V	5.25 MHz	20 V/µs	37 nV	1.4 mA	72	JFET input. JFET input; inputs must stay 4 V above the negative rail, and the input range reaches the positive rail.
OPA2134	JFET	5–36 V	8 MHz	20 V/µs	8 nV	4 mA	108	JFET input; draws 4 mA per amplifier. FET-input audio op-amp without phase inversion; draws about 4 mA per amplifier, so it is hungry on a 9 V battery.
CA3260	mosfet, RR out	4–16 V	4 MHz	10 V/µs		4.5 mA	8	MOSFET input; rail-to-rail output; draws 4.5 mA per amplifier. CMOS output swings to both rails, but the 16 V supply limit rules out 18 V pedals.
LF353	JFET	7–36 V	3 MHz	13 V/µs	18 nV	1.8 mA	73	JFET input; draws 1.8 mA per amplifier. JFET dual; common-mode range must stay 4 V inside each rail.
CA3240EZ	mosfet	4–36 V	4.5 MHz	9 V/µs	40 nV	4 mA	10	MOSFET input; draws 4 mA per amplifier. Dual CA3140: MOSFET inputs that reach 0.5 V below the negative rail, but about 4 mA per amplifier.
TLC2272	CMOS, RR out	4.4–16 V	2.25 MHz	3.6 V/µs	9 nV	1.2 mA	20	rail-to-rail output; much slower. CMOS rail-to-rail-output dual limited to 16 V total; do not run it on an 18 V rail.
TLE2072		4.5–38 V	10.6 MHz	32 V/µs	17 nV	2.4 mA	1	draws 2.4 mA per amplifier. Fast, low-bias dual drawing about 2.4 mA per amplifier.
M5218		4–32 V	7 MHz	3 V/µs		1.5 mA	21	draws 1.5 mA per amplifier; much slower. Low-noise audio dual the maker calls close to the 4558 and 4559, with ±50 mA load current.

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
VCA-1 multipurpose VCA pedal 2N3904 · 2N3906 · LM358 · LM555 1590B	—	Wah / Envelope	Bent Fishbowl	1590B	2	—	48
Death by Audio Space Ring Vero21×19 Verified LM567 · TLC272 Death By Audio Space Ring	Death By Audio Space Ring	Fuzz	Dirtbox Layouts	—	2	—	28
Mad Professor Little Green Wonder Perfboard Verified 2N5457 · TLC272 Mad Professor Little Green Wonder · 1590B	Mad Professor Little Green Wonder	Overdrive	Effects Layouts (blog)	1590B	3	—	23
Mad Little Wonder 2N5457 · TLC272 · TLC272CP Mad Professor Little Green Wonder · 125B	Mad Professor Little Green Wonder	Overdrive	PCB Guitar Mania	125B	3	€9.90 out	34
Mad Professor Little Green Wonder overdrive 2N5457 · TLC272 · TLC272CP	—	Overdrive	PCBWay: Glory to Ukraine	—	3	—	22
Mad Professor Little Green Wonder 2SK170 · TLC272 Mad Professor Little Green Wonder	Mad Professor Little Green Wonder	Overdrive	Revolution Deux	—	3	—	38
BJFE Little Green Wonder Vero21×12 Verified 2SK170 · TLC272 BJFe Little Green Wonder	BJFe Little Green Wonder	Overdrive	Tagboard Effects	—	3	—	21