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[pcb+panel] Ian Fritz 2x ad/ar envelope for eurorack (4hp)
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Author [pcb+panel] Ian Fritz 2x ad/ar envelope for eurorack (4hp)
TimoRozendal
Hi all, I made 4 hp eurorack adaptation of the Ian Fritz AD/AR. Hereby i present it and I have pcbs and panels on the way (all with Ian's kind permission)

The module is based on this circuit with the following modifications:
It has twice the ad/ar envelope circuit
It is without the delayed pulser part
There is a led indicator to show if an envelope is active
Input of the first envelope is normalled to the second envelope
There is an additional switch that converts a gate into a trigger, combined with the previous modification this can result an a simultaneous AR and AD envelope with one incoming gate signal
Schematic can be found here

Known limitations:
-The envelope won’t retrigger if the attack is still busy
-Some very short triggers are not passed through when the gate to trigger switch is enabled (when switch is down)



Build info:
It is all through hole (with no standing resistors) with standard components, but it is a bit dense.
Here is the online build doc with more info

availability/pricing:
pcb: 7 euro
panel:7 euro
shipping: 3e for a pcb or pcb+panel (other orders need to be calculated)
I have 20 sets on the way (and perhaps a few left from the first test batch, need to count/check)

orders:
niicholas pcb+panel [shipped]
GryphonP3 pcb+panel [shipped]
mutedial pcb+panel [shipped]
Starspawn pcb+panel+(bass++ panel) [shipped]
Zaiback pcb+panel [shipped]
xahdrez pcb+panel [shipped]
acilator 2x (pcb+panel) [shipped]
SMonk 2x (pcb+panel) [shipped]
oberkorn pcb+panel [shipped]
batank pcb+panel [shipped]
Suf-fuD pcb+panel [shipped]
qfactor 2x (pcb+panel) [shipped]
mattfearsatan pcb+panel [shipped]
audiohawk 2x (pcb+panel) [shipped]
Dogma 2x (pcb+panel) [shipped]
darkstar pcb+panel + steiner parker pcb+panel+chip [shipped]
Starspawn
Ill take one with panel, and an extra Bass++ panel please.
Zaibach
I'm in for a pcb+panel when they're available!
samuraipizzacat29
Quote:
(all with Ian's kind permission)


Thank you Ian and Timo smile
xahdrez
Yes please - I'm in for one pcb + panel set!
Dogma
2 x pcb and panels please. Hello PH-8 smile
niicholas
w00t
I'll take a set, can you send it with my recent vco order?
mutedial
I'll take 1 pcb + 1 panel, thanks!
-md
GryphonP3
I'll take a set smile could you add it to my fm ogre order if it hasn't been shipped yet?
acilator
Two sets (pcb + panel) for me..
SMonk
I'd like 2 sets (pcbs+panels).
oberkorn
I'll take one PCB/Panel set, please add it to my pending FMogre/3340 order smile
batank
If it's no trouble, one pcb + panel here please. Thanks, Timo.
Suf-fuD
Hey timo, a pcb/panel set for me please mate
qfactor
I would to get 2 sets of pcb and panel, please!
Thanks! thumbs up
mattfearsatan
Hey Timo, yes I'd really like a PCB/panel set please. Cheers
darkstar
Thanks Ian and Timo.

I'd like a panel+pcb.
And - if still available - a steiner parker VCF set (panel+pcb+THAT300).
audiohawk
I'll have 2 sets if possible.
Thank you!
TimoRozendal
pcbs/panels are in, everybody who expressed interest should be notified now.
Oh, and darkstar, I only have 1 steiner parker set left and I first need to check with someone who expressed interest in it before. Will get back to you soon.
Zaibach
Received my set yesterday hyper Built it up today, and worked right away! Thank you for this addition to my rack. One little thing about the BOM: it lists only one Led, two are needed - almost not worth mentioning.
TimoRozendal
Zaibach wrote:
Received my set yesterday hyper Built it up today, and worked right away! Thank you for this addition to my rack. One little thing about the BOM: it lists only one Led, two are needed - almost not worth mentioning.


you're fast! w00t
congrats on the build and thanks for the bom correction
audiohawk
Also arrived safely here.
Thank you for your work we're not worthy
Bartimaeus
Any more of these left? I'm interested in a pcb+panel.
ambrohski
Nice, easy build, and it works as advertised. thumbs up
williamcarthief
Bartimaeus wrote:
Any more of these left? I'm interested in a pcb+panel.


I purchased pcb/panel here.
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