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 Forum index » DIY Hardware and Software » The layout factory
QuadComparator Revamped : euro rack friendly :PCBs Available
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JRock



Joined: Mar 05, 2010
Posts: 87
Location: Bucks County, PA
Audio files: 1

PostPosted: Fri Aug 31, 2012 10:46 am    Post subject: QuadComparator Revamped : euro rack friendly :PCBs Available Reply with quote  Mark this post and the followings unread

*Updated 9/27/12
Quad Comparator
4 x Gates out
4 x Triggers out
Input 1 is buffered and normalled to Inputs 2 -> 4
So you can get 4 differently timed gates/triggers from the same signal.
euro rack friendly PCB

If you want a simple, CNC cut, tinned PCB with No silkscreen or soldermask
please PM me. The cost of the board is $15 ($12.50 a piece for multiples) + $5 postage(US) Shipping will be more for international. It ended up being about $10 to Germany.

Last edited by JRock on Thu Sep 27, 2012 2:14 pm; edited 2 times in total
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aladan



Joined: Aug 13, 2011
Posts: 52
Location: Australia

PostPosted: Thu Sep 13, 2012 10:48 pm    Post subject: Re: QuadComparator Revamped : euro rack friendly :PCBs Available Reply with quote  Mark this post and the followings unread

JRock wrote:
Quad Comparator


Thanks for this, JRock, handy little circuit!
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JRock



Joined: Mar 05, 2010
Posts: 87
Location: Bucks County, PA
Audio files: 1

PostPosted: Thu Sep 13, 2012 11:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

Sure Very Happy
Glad you like.

it's simple too. If you just need 1 it'd be easy to knock together using a TL071 on pad-per-hole board.
Then again, my favorite part about the circuit is having the 1st input buffered and normalled to the other 3 inputs.

You can use it to get your clock from a spare, self oscillating filter or something, so you don't have to use up an oscillator or LFO (I have lots of filters Wink )
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aladan



Joined: Aug 13, 2011
Posts: 52
Location: Australia

PostPosted: Fri Sep 14, 2012 12:59 am    Post subject: Reply with quote  Mark this post and the followings unread

JRock wrote:
Sure Very Happy
Glad you like.

it's simple too. If you just need 1 it'd be easy to knock together using a TL071 on pad-per-hole board.
Then again, my favorite part about the circuit is having the 1st input buffered and normalled to the other 3 inputs.


I'm teaching myself Eagle and I'm working on getting isolation PCB routing going on my new CNC machine, so I was looking for a small (but preferably useful) circuit to lay out, and this one will do quite nicely Smile

Thanks,
A.
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JRock



Joined: Mar 05, 2010
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Location: Bucks County, PA
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PostPosted: Fri Sep 14, 2012 1:42 am    Post subject: Reply with quote  Mark this post and the followings unread

Hahaha!! That's what I did with it Wink
This was my first eurorack module I cut on my CNC

Good luck!


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JRock



Joined: Mar 05, 2010
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PostPosted: Fri Sep 14, 2012 1:43 am    Post subject: Reply with quote  Mark this post and the followings unread

I oughta put those up in the for sale section Wink
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JRock



Joined: Mar 05, 2010
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PostPosted: Thu Sep 27, 2012 2:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

Updated 9/27/12
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airfrankenstein



Joined: Jan 10, 2010
Posts: 62
Location: france

PostPosted: Sun Nov 02, 2014 1:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi JRock, bouncin on over here from the muff thread...have you got any of these pcb's left? if so I'd be up for one. would love to buy the finished item but cash is tight in europaland right now.

let me know,

cheers
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JRock



Joined: Mar 05, 2010
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Location: Bucks County, PA
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PostPosted: Sun Nov 02, 2014 3:40 pm    Post subject: Reply with quote  Mark this post and the followings unread

I don't have any of the Original Quad Comparator PCBs... and the New revisions have a fair amount of SMD on them. How comfortable are you with that?
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airfrankenstein



Joined: Jan 10, 2010
Posts: 62
Location: france

PostPosted: Sun Nov 02, 2014 4:07 pm    Post subject: Reply with quote  Mark this post and the followings unread

not at all comfortable with smd. do the pcb etching pdfs (rev 5) on your site use smd as well?
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