Parts · ICs
MC33178
Dual BJT-Input Op-Amp DIP-8 / SOIC-8.27 circuits use this part. Listed as: Dual op-amp, DIP8; DIP-8 W7.62mm; IC MC33178 (or MC33078) SO8.
Datasheet · from onsemi.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 4), 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 |
|---|---|---|---|---|---|---|---|
| MC33178 | bipolar | 4–36 V | 5 MHz | 2 V/µs | 7.5 nV | 0.42 mA | 35 |
Low-noise bipolar dual that draws only about 0.42 mA per amplifier and drives 600 ohm loads.
Fits the same socket
| Part | Input | Supply | GBW | Slew | Noise | Iq | Boards | Differs |
|---|---|---|---|---|---|---|---|---|
| 4559 | bipolar | ?–36 V | 4 MHz | 2 V/µs | 1.65 mA | 29 | draws 1.65 mA per amplifier. Audio dual with stronger output drive than a 4558 (±10 V into 600 Ω). | |
| 4558 | bipolar | 10–30 V | 4 MHz | 2.2 V/µs | 7 nV | 1.25 mA | 1164 | rated from 10 V; draws 1.25 mA per amplifier. Bipolar input with about 80 nA bias current, so it needs a DC bias path on each input. |
| NJM4565D | bipolar | 8–36 V | 10 MHz | 4 V/µs | 2.25 mA | 2 | draws 2.25 mA per amplifier. Drives 20 V peak-to-peak into 400 Ω; the DIP8 (NJM4565D) is listed as discontinued. | |
| NJM2100 | bipolar | 2–7 V | 12 MHz | 4 V/µs | 1.75 mA | 1 | 7 V max, not for 18 V; draws 1.75 mA per amplifier. Low-voltage dual op-amp rated to ±3.5 V (7 V total), so it cannot run straight from 9 V. | |
| M5218 | 4–32 V | 7 MHz | 3 V/µs | 1.5 mA | 21 | draws 1.5 mA per amplifier. Low-noise audio dual the maker calls close to the 4558 and 4559, with ±50 mA load current. | ||
| NE5532 | bipolar | 10–30 V | 12 MHz | 5 V/µs | 5 nV | 3 mA | 155 | rated from 10 V; draws 3 mA per amplifier. Low noise and strong output drive, but draws about 3 mA per amplifier and has 200 nA bias current. |
| 4580 | bipolar | 4–36 V | 15 MHz | 5 V/µs | 3 mA | 103 | draws 3 mA per amplifier. Low-noise, high-output-current audio dual from ±2 V; the DIP8 (NJM4580D) is listed as discontinued. | |
| M5216 | 4–32 V | 10 MHz | 3 V/µs | 2.25 mA | 4 | draws 2.25 mA per amplifier. High-current dual (±100 mA load) meant for headphone drivers. | ||
| UPC4570 | bipolar | 8–32 V | 15 MHz | 7 V/µs | 2.5 mA | 5 | draws 2.5 mA per amplifier. Low-noise, wideband audio dual; needs at least ±4 V (8 V) supply. | |
| LM833 | bipolar | 10–36 V | 16 MHz | 7 V/µs | 4.5 nV | 2.05 mA | 144 | rated from 10 V; draws 2.05 mA per amplifier. Low-noise audio dual; needs at least ±5 V (10 V) and draws about 2 mA per amplifier. |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| MXR M-151 Doubleshot schematic tracing MC33178 · MC33179 Dime | Dime | Distortion | Bent Fishbowl | — | — | — | 112 | |
| Synergy V.2 2N3904 · J201 · MC33178 · TL072 TWA Triskelion 3 · 1590BBS | TWA Triskelion 3 | Overdrive | Dead End FX | 1590BBS | 2 | $15.00 | 68 | |
| Laney Black Country Customs TI Boost Vero21×25 Verified MC33178 Laney Black Country Customs TI Boost | Laney Black Country Customs TI Boost | Boost | Dirtbox Layouts | — | 4 | — | 34 | |
| MXR Custom Badass Modified OD Vero18×19 Unverified MC33178 · MPSA14 MXR Custom Badass Modified OD | MXR Custom Badass Modified OD | Overdrive | Dirtbox Layouts | — | 2 | — | 33 | |
| MXR M75 Super Badass Distortion Vero25×25 Unverified LM833 · MC33178 MXR M75 Super Badass Distortion | MXR M75 Super Badass Distortion | Distortion | Dirtbox Layouts | — | 5 | — | 44 | |
| Seymour Duncan 805 Overdrive Vero21×21 Verified MC33178 · MPSA18 Seymour Duncan 805 Overdrive | Seymour Duncan 805 Overdrive | Overdrive | Dirtbox Layouts | — | 5 | — | 46 | |
| Seymour Duncan Dirty Deed Vero21×17 Verified 2N3906 · MC33178 · MPSA18 Seymour Duncan Dirty Deed | Seymour Duncan Dirty Deed | Distortion | Dirtbox Layouts | — | 4 | — | 43 | |
| TC Electronic Dark Matter Distortion Vero22×24 Unverified MC33178 TC Electronic Dark Matter Distortion | TC Electronic Dark Matter Distortion | Distortion | Dirtbox Layouts | — | 4 | — | 43 | |
| TC Electronics Mojo Mojo Overdrive Vero22×25 Unverified MC33178 TC Electronics Mojo Mojo Overdrive | TC Electronics Mojo Mojo Overdrive | Overdrive | Dirtbox Layouts | — | 4 | — | 39 | |
| MXR Custom Badass Modified OD Perfboard Verified MC33178 · MPSA14 MXR Custom Badass Modified OD · 1590B | MXR Custom Badass Modified OD | Overdrive | Effects Layouts (blog) | 1590B | — | — | 32 | |
| Seymour Duncan Dirty Deed Perfboard Verified 2N3906 · MC33178 · MPSA18 Seymour Duncan Dirty Deed · 1590B | Seymour Duncan Dirty Deed | Distortion | Effects Layouts (blog) | 1590B | 4 | — | 42 | |
| Dunder Dirt Cheap 2N3906 · MC33178 / LM833 · MPSA18 Seymour Duncan Dirty Deed | Seymour Duncan Dirty Deed | Distortion | Five Cats Pedals | — | 4 | £4.50 | 53 | |
| GT-OD (GTOD) MC33178 · MPSA14 | — | Overdrive | Guitar-Electronics.eu | — | 3 | €6.25 | 35 | |
| ZW44 MC33178 · MPSA14 MXR ZW-44 Wylde Overdrive | MXR ZW-44 Wylde Overdrive | Overdrive | Guitar-Electronics.eu | — | 3 | €6.25 | 35 | |
| Thunderbird Preamp BC847 · J111 · J177 · J201 Lionsound 16.0 Fire Angel · 1590BB | Lionsound 16.0 Fire Angel | Preamp / Amp-in-a-box | HotKits | 1590BB | 7 | $10.00 | 59 | |
| ARM overdrive MC33178 | — | Overdrive | PCBWay: Glory to Ukraine | — | 5 | — | 25 | |
| MXR Distortion III MC33178 · MPSA14 | — | Distortion | PCBWay: Glory to Ukraine | — | 3 | — | 29 | |
| MXR Zakk Wylde Overdrive ZW-44 MC33178 · MPSA14 | — | Overdrive | PCBWay: Glory to Ukraine | — | 3 | — | 25 | |
| Article 59 Overdrive MC33178 · TL072 Marshall 1959 Pedal · 125B | Marshall 1959 Pedal | Fuzz | PedalPCB | 125B | 4 | $12.00 | 55 | |
| Bad Mamma Jamma Distortion LM833 · MC33178 MXR M75 Super Badass Distortion · 125B | MXR M75 Super Badass Distortion | Fuzz | PedalPCB | 125B | 5 | $12.00 | 66 | |
| Dark Esbat Boost MC33178 Laney Black Country Customs TI Boost · 125B | Laney Black Country Customs TI Boost | Fuzz | PedalPCB | 125B | 5 | $12.00 | 66 | |
| Dunder Chief Distortion 2N3906 · MC33178 · MPSA18 Seymour Duncan Dirty Deed · 125B | Seymour Duncan Dirty Deed | Fuzz | PedalPCB | 125B | 4 | $8.00 | 53 | |
| Eight Ball Overdrive 2SK209G · MC33178 Marshall JCM800 · 125B | Marshall JCM800 | Fuzz | PedalPCB | 125B | 4 | $12.00 | 54 | |
| Nine Ball Overdrive MC33178 · TL072 Marshall JCM900 Overdrive Pedal · 125B | Marshall JCM900 Overdrive Pedal | Fuzz | PedalPCB | 125B | 4 | $12.00 | 61 | |
| Noctis Fuzz MC33178 Keeley Moon Op Amp Fuzz · 125B | Keeley Moon Op Amp Fuzz | Fuzz | PedalPCB | 125B | 4 | $12.00 | 55 | |
| Seyfoam Overdrive MC33178 · MPSA18 Seymour Duncan 805 Overdrive · 125B | Seymour Duncan 805 Overdrive | Fuzz | PedalPCB | 125B | 5 | $12.00 | 65 | |
| Dunlop Q-Zone QZ1 Vero16×18 Verified MC33174 · MC33178 Dunlop Q-Zone | Dunlop Q-Zone | EQ / Filter | Tagboard Effects | — | 3 | — | 27 |