What can I do with these ICs/transistors?

MBFX

Well-known member
I have some leftover ICs and transistors that I don't know what to do with. Anyone have any suggestions for how to use the following?

V571D (1)
LM741CN (1)
LM13700N (1)
J201 (2)
2N7000 (2)
MPSA18 (5)
2N5485 (8)
 
LM741CN (1)
Blackhawk amplifiers Morgul boost is usable if you want drive your preamp to oblivion. Bit noisy, but gives nice grit. Dirtboxlayouts has vero layout for it, but unfortanely no schematic there. I’d like draw it, but haven’t yet been motivated for it.

Just remember 20-50pf compensation cap for 741cn between pins 1-8!

Edit. I mixed uA741 with 741CN. Latter has internal compensation, so no need for that…
 
Last edited:
If you're looking for PCBs that can use those parts, here are some from a search of my 'database':

V571: Aion Blueshift (Boss DC-2), Madbean Total Recall (Memory Man)

LM13700 Aion Aurora (Ross compressor), Madbean Honey Dripper, Aion Redshift (phaser) (3 req'd)

J201: PPCB Proposition (1), PPCB Cobalt (4) Aion Hypercube (3)

2N7000: Aion Azimuth (Zen Drive), PPCB Grover (Dover) Drive

Also, the Madbean Aquaboy uses MPSA18 & V571, but I think that project is discontinued. I believe he's got a newer version, but don't know if it uses these parts.
 
Last edited:
I have some leftover ICs and transistors that I don't know what to do with. Anyone have any suggestions for how to use the following?

Here's some that come to mind:
  • Hermida ZenDrive (PedalPCB Mahayana) uses 2N7000
  • Mad Professor Simble (PedalPCB Symbolic OD) uses 2N7000
  • Fulltone OCD (PedalPCB ADHD) uses 2N7000
  • OKKO Diablo OD (PedalPCB Deofol) uses J201 (albeit 5 of them)
  • Runoffgroove Umble (PedalPCB) uses J201 (albeit 6 of them)
  • Several Wamplers from PedalPCB use J201s, but again more than your 2 (but you can buy more J201's as presoldered/mounted SMDs from Richard (https://www.pedalpcb.com/product/mmbfj201-jfet-pre-soldered/)
 
Last edited:
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​
 
Back
Top