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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Keeping my lunetta in tune with autotune pedal
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mike page



Joined: Sep 26, 2016
Posts: 110
Location: norwich, uk

PostPosted: Tue Mar 20, 2018 4:53 am    Post subject: Keeping my lunetta in tune with autotune pedal Reply with quote  Mark this post and the followings unread

Hello all, just thought I'd share my sneaky tip for making my lunetta more melodic. This may be heresy to some, but im not too dogmatic and will incorporate anything I feel like into my system.

Ive been using a Helicon C1 auto tune pedal and it works well!
Snapping the funky lunetta squall in neat semitones.

I think however it could be improved by suitable input buffering.
The pedal is expecting a mic input so low impedance I guess (the manual saying input impedance is 2.68k ohms, and output is 200ohms). Any tips on suitable buffering techniques?
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mosc
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PostPosted: Tue Mar 20, 2018 4:25 pm    Post subject: Reply with quote  Mark this post and the followings unread

Since it's a Lunetta, you can just try different size resistors until you get a decent sound.

Sounds like an interesting experiment. How about posting some sound examples?

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mike page



Joined: Sep 26, 2016
Posts: 110
Location: norwich, uk

PostPosted: Wed Mar 21, 2018 10:18 am    Post subject: Reply with quote  Mark this post and the followings unread

here you go, live one take with my lunetta.

sequenced main voice ---> autotune pedal ---> resonant filter ---> EHX super ego

https://soundcloud.com/michaelanimationpage/coda
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PHOBoS



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PostPosted: Fri Mar 23, 2018 8:12 am    Post subject: Reply with quote  Mark this post and the followings unread

sounds good! Very Happy

I don't think impedance is much of a problem but levels could be. Output levels from a lunetta are pretty high
while a mic input usualy expects a pretty low level. A potentiometer followed by an opamp for buffering should
give some decent results. You could also take a look at the output section of the NANDulator which uses a
transistor.

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mike page



Joined: Sep 26, 2016
Posts: 110
Location: norwich, uk

PostPosted: Wed May 30, 2018 1:40 am    Post subject: Reply with quote  Mark this post and the followings unread

Ive been having a problem with using this pedal.
Using an impedance transformer I borrowed from a friend seemed to sort it out,
but actually I think the problem isnt impedance but the fact the the pedal always has phantom power on! I think ive been sending 48v to my lunetta!
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LFLab



Joined: Dec 17, 2009
Posts: 468
Location: Rosmalen, Netherlands

PostPosted: Wed May 30, 2018 10:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

Well,if you are using batterij power,there probably is a cap on the output. Just needs to be a cap with quate rated voltage.
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