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 Forum index » DIY Hardware and Software
Neutron O/A in blue
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Skrog Productions



Joined: Jan 07, 2009
Posts: 1131
Location: Scottish Borders
Audio files: 143

PostPosted: Sat Jul 15, 2017 8:27 am    Post subject: Neutron O/A in blue
Subject description: first build started after a soldering break
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Hi Smile

I have a small pile of bare & new to me pcbs forming and decided to tackle the top one first , a Version 1 Neutron orgone accumulator green pcb (thanks Alan).

The home made panel will be the usual 100mm wide by 250mm high with the panel pots , switches , sockets wired back to the board , i found Sduck's cool build a great source of inspiration for helping me with the layout design (Thanks Sduck) , and also the 60 or so pages of the muffs build thread were good to read as well as the pdf docs.

Progress so far ... i have populated the pcb , and now ready to twist some 2/3/4 core wire looms in the drill , i found a piece of 4mm thick ply for when testing and tuning happens , the proper blue panel will have to wait till ive designed some other panels to send 1 order to the printers Smile .


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AlanP



Joined: Mar 11, 2014
Posts: 696
Location: New Zealand
Audio files: 40

PostPosted: Mon Jul 17, 2017 10:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

Don't expect amazing fidelity from the PWM Out (almost typed pwn...) -- it sounds rather chiptune-ish, compared to the very excellent Main Out.

Can't wait to hear about the rest Smile
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Skrog Productions



Joined: Jan 07, 2009
Posts: 1131
Location: Scottish Borders
Audio files: 143

PostPosted: Tue Jul 18, 2017 11:40 am    Post subject: Reply with quote  Mark this post and the followings unread

im looking forward to hearing this myself Smile , i should have it no-chip tested and wired up through the week .
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Skrog Productions



Joined: Jan 07, 2009
Posts: 1131
Location: Scottish Borders
Audio files: 143

PostPosted: Tue Jul 18, 2017 11:56 am    Post subject: Reply with quote  Mark this post and the followings unread

Panel hardware set up on test panel & L plate for pcb in place also i made a few changes to the panel crosses and checked for space around control knobs.

Dave.


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Skrog Productions



Joined: Jan 07, 2009
Posts: 1131
Location: Scottish Borders
Audio files: 143

PostPosted: Mon Jul 24, 2017 10:42 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi all Smile

Had a good burst of building over the weekend and got the V1 pcb all wired up and connected to the switches & pots & sockets , done a no-chip power test ... good Smile , popped in the 3v ref chip and checked there was a nice +3v & -3v good again Smile , then went for the op-amps & the teensy board , powered up and no led's , hmmmm, tried turning them around to the opposite of the pcb legend and intrepidly switched on, all good Smile Smile , i done a quick and dirty tune up on the first couple of octaves just for testing purposes and i was feeling myself sliding into a TD tangram / exit album sound zone Very Happy fantastic my fave Smile
then i checked all the pots & switch operations , i have not fully explored the effects sets , i was having great fun just in normal mode, also i was getting some nice 90's warp records type clicks & drone type sounds .

Once the good panel sticker comes in a month or two i will finish off the sound demo testing of the different effect modes.

Loving this module Smile Smile Smile

Dave.


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Neutron orgone accumulator test - memories of 1993.mp3
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colorbars



Joined: Oct 29, 2015
Posts: 8
Location: Canada

PostPosted: Sat Jul 29, 2017 10:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Looks great! How are you making your panels?
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Skrog Productions



Joined: Jan 07, 2009
Posts: 1131
Location: Scottish Borders
Audio files: 143

PostPosted: Mon Jul 31, 2017 9:37 am    Post subject: Reply with quote  Mark this post and the followings unread

colorbars wrote:
Looks great! How are you making your panels?



Hi colorbars , panels ... i go to my local engineering firm to get 3mm thick aluminium sign sheet ( aluminium sheet with a protective sticker on the non scratched side) cut to my module sizes (100mm X 250mm) on their big hydraulic guillotine machine , i then print off a drill template on my home pc printer and glue on to the module plate and center punch all the crosses , i then use a press drill in my shed to work up the drill sizes start with 4mm for all crosses and build up to the biggest needed (12mm for my jacks) , i give the front a light rub with P1000 automotive body emery paper and wipe clean ready to apply the proper final vinyl sticker by de-activating the adhesive with warm soapy (washing up liquid) water, that allows me to move the sticker about to line up with the holes and i just scalpel vinyl crosses out before putting on the pots & sockets.


Dave.
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AlanP



Joined: Mar 11, 2014
Posts: 696
Location: New Zealand
Audio files: 40

PostPosted: Fri Jul 05, 2019 1:02 am    Post subject: Reply with quote  Mark this post and the followings unread

Dave, does the blue monster long fer more?
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Skrog Productions



Joined: Jan 07, 2009
Posts: 1131
Location: Scottish Borders
Audio files: 143

PostPosted: Sun Apr 26, 2020 12:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

yay! got round to finishing off this module , it has had the template test paper glued on the front for a few years time to get the proper sticker on the panel Smile .

neutron sound orgone accumulator in a slightly darker blue than usual but all is good Smile .

Dave


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