TL-082

Dual JFET-Input Op-Amp DIP-8 / SOIC-8.6 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 14), 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
TL082	JFET	4.5–40 V	5.25 MHz	20 V/µs	37 nV	1.4 mA	72

JFET input; inputs must stay 4 V above the negative rail, and the input range reaches the positive rail.

Fits the same socket

Part	Input	Supply	GBW	Slew	Noise	Iq	Boards	Differs
TL072	JFET	4.5–40 V	5.25 MHz	20 V/µs	37 nV	1.4 mA	1338	JFET input; inputs must stay 4 V above the negative rail, and the input range reaches the positive rail.
LF412	JFET	7–36 V	4.5 MHz	21 V/µs	18 nV	0.56 mA	4	FET-input dual with standard pinout per the drawing (the 2026 pin table misprints pins 4 to 8).
LF353	JFET	7–36 V	3 MHz	13 V/µs	18 nV	1.8 mA	73	JFET dual; common-mode range must stay 4 V inside each rail.
OPA2134	JFET	5–36 V	8 MHz	20 V/µs	8 nV	4 mA	108	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.
TLC272	CMOS	3–16 V	4.5 MHz	21 V/µs	10.8 nV	0.56 mA	7	CMOS input; 16 V max, not for 18 V; input range reaches the negative rail. CMOS dual limited to 16 V total; the input range includes the negative rail.
TLE2072		4.5–38 V	10.6 MHz	32 V/µs	17 nV	2.4 mA	1	Fast, low-bias dual drawing about 2.4 mA per amplifier.
CA3240EZ	mosfet	4–36 V	4.5 MHz	9 V/µs	40 nV	4 mA	10	MOSFET input; input range reaches the negative rail; draws 4 mA per amplifier. Dual CA3140: MOSFET inputs that reach 0.5 V below the negative rail, but about 4 mA per amplifier.
CA3260	mosfet, RR out	4–16 V	4 MHz	10 V/µs		4.5 mA	8	MOSFET input; 16 V max, not for 18 V; input range reaches the negative rail; 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.
M5218		4–32 V	7 MHz	3 V/µs		1.5 mA	21	much slower. Low-noise audio dual the maker calls close to the 4558 and 4559, with ±50 mA load current.
UPC4570	bipolar	8–32 V	15 MHz	7 V/µs		2.5 mA	5	bipolar input. Low-noise, wideband audio dual; needs at least ±4 V (8 V) supply.

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Sawtooth Frequency Doubler TL-082	—	Ring Mod / Synth	Experimentalists Anonymous	—	—	—	7
Sawtooth Frequency Doubler TL-082	—	Vibrato / Chorus	Experimentalists Anonymous	—	—	—	7
Sawtooth Frequency Doubler 2 TL-082	—	Ring Mod / Synth	Experimentalists Anonymous	—	—	—	5
Sawtooth Frequency Doubler 2 TL-082	—	Vibrato / Chorus	Experimentalists Anonymous	—	—	—	5
Sawtooth Manual Phase Shifter TL-082	—	Phaser	Experimentalists Anonymous	—	—	—	5
Sawtooth Manual Phase Shifter TL-082	—	Phaser	Experimentalists Anonymous	—	—	—	5