ENV-100 6HP adsr SMD by FEEDBACK [UPADTE!]

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strat-1
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ENV-100 6HP adsr SMD by FEEDBACK [UPADTE!]

Post by strat-1 »

www.feedbackmodules.com

[UPDATE] I corrected a mistake in the BOM list. I wrote by mistake NE5532, the correct chip is RC4558DR.
In the building manual the chip was stated correctly.

I made a pdf manual explaining the functions of ENV-100 adsr.

Image

MAIN PCB Top and Bottom
Image

POWER PCB Top and Bottom
Image

This is probably the fastest envelope generator in modularland.
Why? Because it is based on the fastest one. The classic Japanese modular from the seventies everyone loves.
Why we did it? Because we wanted it in our own systems. And we wanted it in SMD.
Later we thought it would be nice to share it with other modular enthusiasts, so here it is.
The ENV 100 is a nice compromise. At 6HP is large enough so the user interface is not a pain to use,
but small enough not to take significant space in your system.
It is a relatively fast build, with easy to find common parts and is adapted to work at +12/-12V eurorack power.

FAST TIME
Attack Time 4ms-2s
Decay Time 8ms-4s
Sustain Level 0-8V
Release Time 8ms-4s

SLOW TIME
Attack Time 6ms-20s
Decay Time 15ms-40s
Sustain Level 0-8V
Release Time 15ms-40s

ENV-100 is available in two type of kits :

KIT1 :
- 2 x PCBs + Front Panel

KIT2 :
- 2 x PCBs + Front Panel
- 1 x Red LED superbright
- 1 x Tactile E-Switch + White cap
- 1 x 100KB Pot
- 3 x 1MA Pot
- 3 x Minijack sockets
- 1 x 6way Pinheader Male for 10/12mm spacer
- 1 x 6way Pinheader Female for 10/12mm spacer
- 4 x 1900h Cream Knobs
The rest of the parts like resistors, caps, diodes, are easy to be found on every common store.


Attachments
ENV-100 - User Manual.pdf
(4.98 MiB) Downloaded 20 times
ENV-100 Build Files 1.0.zip
(28.04 MiB) Downloaded 20 times
ENV-100 - POWER pcb.jpg
ENV-100 - POWER pcb.jpg (107.55 KiB) Viewed 696 times
ENV-100 - Module.jpg
ENV-100 - Module.jpg (135.35 KiB) Viewed 696 times
ENV-100 - MAIN pcb.jpg
ENV-100 - MAIN pcb.jpg (191.68 KiB) Viewed 696 times
ENV-100 Build Photos 1.0.zip
(10.06 MiB) Downloaded 16 times
Last edited by strat-1 on Sun Jul 25, 2021 4:29 am, edited 6 times in total.
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strat-1
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Re: ENV-100 6HP adsr by FEEDBACK [NEW SMD project!]

Post by strat-1 »

I made a movie demo for ENV-100.

ENV-100 fed into LO-FUSIONs freq input and cv input of VCA-100. In second part of the movie LFO-10 triangle output it's modulating the other freq input of LO-FUSION VCF. Signal source is the square output of TWO59 VCO.
VCA-100 is not in the system, is a work in progress module made on a testboard, soon to be released.

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strat-1
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Re: ENV-100 6HP adsr by FEEDBACK [NEW SMD project!]

Post by strat-1 »

ENV-100 specifications :

Attack Time 0.4ms-3s
Decay Time 0.8ms-6s
Sustain Level 0-7V
Release Time 0.8ms-6s

These specifications are with switch set on Fast time.
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strat-1
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Re: ENV-100 6HP adsr by FEEDBACK [NEW SMD project!]

Post by strat-1 »

[UPDATE] I corrected a mistake in the BOM list. I wrote by mistake NE5532, the correct chip is RC4558DR.
In the building manual the chip was stated correctly.
User avatar
strat-1
Veteran Wiggler
Posts: 680
Joined: Wed Jun 03, 2015 8:58 am
Location: Romania
Contact:

Re: ENV-100 6HP adsr SMD by FEEDBACK [UPADTE!]

Post by strat-1 »

I made a pdf manual explaining the functions of ENV-100 adsr.

Image
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strat-1
Veteran Wiggler
Posts: 680
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Re: ENV-100 6HP adsr SMD by FEEDBACK [UPADTE!]

Post by strat-1 »

Updated the user manual with complete specifications :

FAST TIME
Attack Time 4ms-2s
Decay Time 8ms-4s
Sustain Level 0-8V
Release Time 8ms-4s

SLOW TIME
Attack Time 6ms-20s
Decay Time 15ms-40s
Sustain Level 0-8V
Release Time 15ms-40s
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K_nsk
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Re: ENV-100 6HP adsr SMD by FEEDBACK [UPADTE!]

Post by K_nsk »

nice :)
I'm curious to know if self retriggering would work or would it need absolutely an end of cycle gate?
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Re: ENV-100 6HP adsr SMD by FEEDBACK [UPADTE!]

Post by strat-1 »

New video for ENV-310/ENV-100/LFO10 by COLOR MY SOUND :)

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