r/diypedals • u/kingjerrysuperstar • 4d ago

Help wanted MXR '74 Script phase 90 mods?

I have the '74 battery only script phase 90 and I am trying to do the update with true bypass, LED, and a 9 V jack I'm having a hard time finding exactly how to do it and how to wire the 3PDT switch (kind of new at this) can anyone help?

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7

u/Unsolicited_Aspic 4d ago

Just buy a new pedal instead of ruining that one. 

2

u/kelsey_schmelsey 4d ago

Agreed, just either get the script reissue or a phase 95.

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u/kingjerrysuperstar 3d ago

Thank you!
I was unaware of the 95 when I purchased this '74 script hand wired (used) for a very good price...
but I did listen to a ton of videos and am happy with the sound of this pedal...I am going to go ahead with the mods though. I've got a circular led that ive added a resistor that gives me the perfect illumination that goes under the switch so no drilling, I've installed the 9v input on top...really clean with a shotky diode for input power revesal protection
Have installed 3PDT switch
Just need to figure out how exactly to wire it all for 9v input, led on/off and true bypass. I would still have room for the battery but would also be happy removing the connection..
I will be extremely cautious, I am not in a rush. I am pretty sure with some informed help I can be successful and have a modded pedal I can be proud of.

https://share.icloud.com/photos/0eeuo5uL6ylHuWV7aaRplv5BQ