2025年1月18日 · I recently purchased some 2N5457s and 2N5458s and am wondering if there are some simple pedal circuit schematics out there that use those transistors. I know the Rat uses it, and I may start there, but am wondering if there is a better or more simple place to start.

2021年10月8日 · (*) JFET 2N5457 - Guaranteed Genuine - GuitarPCB (1) Genuine 2N5457 JFET Transistor from my own personal collection. Hand Tested and all are in the proper range for guitar pedals.

2020年3月20日 · Whether you use 2N5457 or 2N5458, not every one that is in-spec will work in that circuit. That's because there is a large range for Vp aka VGS(off). The spec for 2N5457 is -0.5V to -6.0V. The spec for 2N5458 is -1.0V to -7.0V. Anything over -3V and you will have zero headroom. Little or no signal gets thru unless you start fiddling R16 and R18.

2021年9月13日 · AionFX has 2N5457 chips for a reasonable price. They basically took the surface mount version and adapted them with a little PCB. Works well and gives you the same as a standard through hole version

2024年5月15日 · I don't know if they still have any but I've had good luck finding 2N5457s and other similar JFETs at Mouser. I just used a 2N5457 today from my Mouser stash. I know they don't have any J201s, only the surface mount equivalents. The BS170 MOSFET is indeed very similar to the 2N7000 but is noticeably beefier sounding, ie more powerful.

2022年1月19日 · Recently I ordered some parts from another website, RetroAmplis and bought some CentralSemiconductor 2N5457 since someone claimed they were the real deal, installed them, and now I can "tune" that thing much lower. Currently I have them set at 5V, but I don't quite know what does it mean. To me it sounds great as it is but I'd like to know:

2019年4月1日 · 2N5457 and MPF4393 have the same pinout. Nothing special about MPF4393 except Catalinbread was designing them into their pedals when the MPF4393 was still in production. You can buy legit PN4393 from Mouser, $1.17 ea in quantities of 10. Don't risk your money on eBay when you can buy the real-deal from a trusted supplier.

2022年1月13日 · 2n5457 substitutions for Glory Hole? Thread starter StratsRNeat; Start date Jan 13, 2022; S. StratsRNeat ...

2021年12月2日 · laundryman - 2N5457 replacement is a very common question, not only here.. There's no 1:1 replacement. You can try J202 (MMBFJ202) MPF102, J113 (MMBFJ113), BF245A, MPF4393, 2N5458 (MMBF5458). And of course MMBF5457 (Tayda: out of stock)

2023年1月22日 · Substituting similar series JFETs (5457, 5458, 5459) doesn’t always work in my experience. My layman’s understanding is that they present different impedances and turn on with varying voltages (increasing with the numbers, so a 57 turns on ‘easier’ than a 58).