Here's my top Suggestions:
V571D (1)
Skoolie [neg gnd EHX Dlx Memory Man] MBP
Setback [DOD FX90 DELAY] revised MBP
ManOWarDX [MAXON AD-900 delay] MBP
Aquababy [Boss DM-2] MBP
Anamorph 550ms Analogue Delay MBP
LM741CN (1)
Build a Square Wave Oscillator—DIY Modular Synth
DOD OD-250 / MXR Dist+ HEAVILY MODDED
Muff Op-Amp
LM13700N (1) ————— With an adapter, any CA3080-based circuit, too.
Engineer's Thumb
Snow White Autowah
BOE Whetstone Phaser
DOD FX25
DOD 440 CDXL Reissue PedalPCB
L4_bass_preamp [Lab Series L4]
L5 pre clean-ch [Lab Series
Guyatone PS-021 Exciter/Comp]
Mu-tron Micro V
EHX SmallStone] phaser
ROG TRI-VIBE
Coloursound Dipthoniser
Hydronium | Rare Waves
EHX PULSAR
CHUNK SYSTEMS' AGENT 00FUNK MKII
KORG MS-20 FILTER
LM13700 ring mod.pdf
Fairfield Shallow Water
MFOS VOCODER
Maestro FSH-1 Filter Sample Hold
PELLUCID COMP CT033_B.2
Blackout Effectors Crystal Dagger
Maestro MP-1
MFOS SUB-COMMANDER GUITAR SYNTH
Somnambulist
VIBRATO VIIB-BOM PedalPCB
Vocoder VocLog | Analog Synthesizer DIY
J201 (2)
DoubleShot Boost from GPCB
Too many more to list...
2N7000 (2)
Use them as Clipping diodes in a Muff
Muff's middle two transistors.
MOSFET Boost
Zendrive Clipping — or I suppose an OCD's clipping diodes, if you must
SHO / SUPER DUPER / BOR
Catalinbread RAH
MPSA18 (5)
DeviEver builds
Musket or Blunderbuss and use MPSA18 instead of stock spec
Delegate (1)
BearHug (1)
Moonn Good Vibes (2)
2N5485 (8)
Woolly Mammoth/Mastotron
BLUEBERRY BASS OD
Rat
Systec Harmonic Energiser
Dunwich Wizard
AMZ MiniBooster