ABDUCTOR II DELAY.

[kurt224]

Hi, could you share the single layer pcb? please.

[deadastronaut]

hi, there isn't a single layer for this....if there was it would be huge..

[bluebunny]

hi, there isn't a single layer for this....if there was it would be huge..

...and DA (the other) would complain about the image size.   

Still: huge, single-side, . . . I wonder if Dino's done a vero layout?                                          

[11-90-an]

Not Dino (I think) but this guy pulled it off...

http://guitar-fx-layouts.42897.x6.nabble.com/deadastonaut-abductorIIdelay-td29363.html

Now I'll patiently wait for a perf layout... anyone...? 

[duck_arse]

I'm confused by which DA (to).

[skyled]

Here's my build report on the Abductor II delay over on Madbean's forum. I managed to add an effects loop in a way which can only be described as "stupid easy". Hope you guys enjoy 

https://www.madbeanpedals.com/forum/index.php?topic=32001.msg307588#msg307588

[deadastronaut]

Cool....no pics of your build?..

[skyled]

Green knobs for little green men.

[deadastronaut]

Green knobs for little green men.

looks great...nice build. 

the term little green men was apparently from a guy who said he witnessed  'little grey men' around WWII but he was miss quoted by the press and it stuck.... don't ask me how i know this... 

[gigimarga]

Hello!

It looks like a fabulous delay...thank you for it, deadastronaut!

If I want to build it with true bypass, I can omit 2N5457 and the parts between its gate and +9V? Of course, I will put a wire between drain and source of FET.

Thank you!

[deadastronaut]

Yep you can do that, no problem....

[gigimarga]

Yep you can do that, no problem....

Thank you very much, Rob!

[gigimarga]

Hello!

I finished the Abductor and it sounds amazing, but I have a problem: the delayed sounds are distorted (most on the bridge position). I have an Ibanez RG370 unmodified, with Infinity pickups, but when I use it with other PT2399 delays (Multiplex, EQD etc.) I don't have this problem. I tested 3 types of PT2399 (different sources), including ones that don't sound distorted in other delays. The source of the problem could be the fact that I omitted 2N5457 bypass? I tried to find on Internet the drain-source resistance of 2N5457 when it's on, but I have no luck. Also, I added 4 yellow and green 3mm LEDs from pin 7 to ground as I saw in other builds (Jon Patton's idea) and the twos from IC1 and IC2 lights almost all time, while the last two lights weakly. Maybe I must add a trimpot insted jumpering 2n5457 drain and source? If yes, which value could be?

Thank you a lot!

[ian_macpherson]

I'm having a real struggle getting this to work. Using an audio probe I cannot trace a signal beyond the input (pin 3) of IC5a. I have the green version of the PCB, which includes R5 next to IC5, although this does not appear on the schematic, the overlay or the parts list. I assume that I should replace it with a link to join pins 1 & 2? Are there any other differences between this version of the PCB and the correct layout?
Cheers
Ian

[deadastronaut]

hi ian, wow those old green boards were from years back..

anyway , without seeing the board i suspect you need to do this ''fix''

[ian_macpherson]

Hi Rob,
Thanks for your reply. Yes I've had the PCB for a while! I'll give your suggestion a go and let you know.
Cheers
Ian

[deadastronaut]

is your R8 / R9 the same as the diagram above?.

[ian_macpherson]

Hi Rob,
I've just seen your last update. Yes, R8 (22k) and R9 (56k) are as shown in your diagram. They are also connected to the correct pins of IC5 according to the schematic V2. I'm yet to try rewiring R4, but R6 is already 1M. I'll let you know how I get on.
Cheers
Ian

[bamslam69]

Just finished soldering up my board today.
Wasn't sure about the lack of true bypass, but I like the way the effect dies off slowly when you disengage.

Boxing up is going to be a nightmare!

[bluebunny]

I cheated somewhat with all that wiring by using JST connectors.