So I’ve just drawn up a 3D Printed faceplate for LMNC Simple envelope…
I managed to fit it on a 2.5cm panel using the parts I have and also made a “dual” faceplate.
Just wondered if anyone has had a go at this already swapping the TL072 for a TL074 on stripboard.
If not ill have a draw tomorrow and see if I can get a layout together.
yes it’s possible, but i don’t know if it’s more simple/convenient ?
i’ve just made a Dual version too, and i 've used 2 TL072.
a stripboard more large or a stripboard more tall, and you have to redo a new layout.
That’s just my opinion
it is also sometimes depending on the components that we have 
@Dud, I think I bought like 25 of each the TL072 and TL074 just before Xmas when I caught the modular bug 
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Its probably going to be easier for me to use 2x 072s tbh and have a slightly deeper board, my case is 40cm deep due to a mishap when cutting the wood so its not like I’m short of room
Well the plate looks to be big enough to fit 2 of the LMNC Simple AD/AR 
STLs available on my github if anyone else wants to give it a try.
Print at at least 50% infill to stop the mounts falling off
annoyingly, ive just realised i havent got any 1m linear pots 
Tell us your address, we’ll send you the t-shirt! 
Just ordered some more pots… damn, the woman is going to kill me .
In the mean time, do you think I could get away with 500K pots?.
Really want to get this thing up and running as my case is looking too bare at the moment
You can always try if you feel you can re-solder later. Its just going to change the range.
Build a sort of tiny version of the LMNC simple envelope generator…
worked nicely
Here in action on via VCA tapeloops: https://www.instagram.com/p/Cvwnlafsreg/?img_index=1 and if that link doesn’t work:
https://www.youtube.com/watch?v=AuYMlYTg4-I
You get longer times if you add more capacitance, any tests on how much would be good?
Here are some build pics. Aimed for a Eurorack format, used angled boards to the pots and put the pot-diodes and input-output components close to the panel (hopefully you can get the idea).
You can solder in SIP sockets cut to 3 positions and then easily experiment with different capacitors. Connect 2 adjacent terminals to ground and 1 to TL072 pin 5, then you can plug in caps with either 2.5 or 5 mm lead pitch. Of course if squeezed for space you can just use a 2 position socket and somehow bend the leads to fit.
I did something like that with an ADSR envelope generator I made:
There are 2 capacitors with a switch to select. I ended up using a 10 µF aluminum electrolytic (not tantalum! The ones I tested were awful. Be careful with orientation, - terminal goes to ground.) and 1 µF polyester film in conjunction with 1M pots for maximum RC time = 10 seconds and 1 second respectively. Yours seems to be a dual module, you could use different caps in each.
Did the cat approve? There is something in its stare …
I know! And the cat was right. The lower CV input jack was dodgy, I’ll get to replace that.
I know I should have asked her in more detail what she meant…
