Modding 1176 rev D to longer attack times….1176AE Mod possible.?

[la-2a]

Hi, can somebody support me with the schematics 1176 AE reissue attack modification.?? I want to make a mod to my 1176 revD to have longer attack time available on a switch. Any suggestions. ??
I know.. changing just the attack pot to a higher value is not really what i am searching for. Btw.. I spent hours searching in the forum.

I want to add a switch to keep the original values  . Tried C27 and R470 with different values …results in …...not much audible difference.
Thank you in advice.

 

[dmnieto]

This is how I did it, using the SPDT switch on the attack pot, I wired so when the pot is at its lowest setting it disconnects C27 and instead it connects a 0.22uF capacitor in parallel with R54

 

[la-2a]

Thank you @dmnieto .Good Idea. But you can really  hear a difference by just changing the C27 value from 0.022 to 0.22uF….

 

[dmnieto]

Both the attack and release times are multiplied by 10... so yeah. You do hear a difference.

There is also a way to add the "2:1" ratio, if you have the rotatory switch version.