EHX - Clockworks EH5385  [schematic]

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Re: EHX EH5385 Clockworks

Postby e45tg4t3 » 14 Oct 2011, 18:04

Ok thank you, i just never have seen this type of output boost.. Every Day something new to learn :D ..

Also Attached a Quick View of the first Version of the Clock-Section Board.
First View.png


I´m gonna make this Modular so i don´t end up with a giant board, and also because the Divisor Sections are all the same...

Ben
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Re: EHX EH5385 Clockworks

Postby JuliaDee » 14 Oct 2011, 18:30

Awesome, Ben! Good luck and please let me know how it works out.

julia

e45tg4t3 wrote:Ok thank you, i just never have seen this type of output boost.. Every Day something new to learn :D ..

Also Attached a Quick View of the first Version of the Clock-Section Board.
First View.png


I´m gonna make this Modular so i don´t end up with a giant board, and also because the Divisor Sections are all the same...

Ben
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Re: EHX EH5385 Clockworks

Postby e45tg4t3 » 18 Nov 2011, 13:08

So... i finished it some time ago, but never had the time to Upload it. It is NOT verified and i would be lucky if someone of you could look over it. Files are Eagle-Format.

Best Regards

Ben
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Re: EHX EH5385 Clockworks

Postby DiscoFreq » 04 Dec 2012, 22:42

Wow, great, I tried to buy a Clockworks several times, but it was always too expensive...

(I do have 2 Drum Sequencers, 1 with and 1 without trigger outs).
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Re: EHX EH5385 Clockworks

Postby jaidee » 31 Dec 2012, 18:00

Hi Julia

Thanks for the great post.

I'd still be interested in seeing the original PCB artwork if you can find the time to scan and post it.
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Re: EHX EH5385 Clockworks

Postby JuliaDee » 04 Jan 2013, 19:42

jaidee wrote:Hi Julia

Thanks for the great post.

I'd still be interested in seeing the original PCB artwork if you can find the time to scan and post it.


Here 'tis - COPPER side.

Julia
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Re: EHX EH5385 Clockworks

Postby jaidee » 12 Jan 2013, 01:10

Julia, thanks for taking the time and trouble to dig out and post the schematic.

Amongst all the postings on this board this is a fairly unique pedal and circuit, so I feel that we're privileged that you, the designer, have had the generosity and good grace to share the details!

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Re: EHX EH5385 Clockworks

Postby JuliaDee » 12 Jan 2013, 01:53

jaidee wrote:Julia, thanks for taking the time and trouble to dig out and post the schematic.

Amongst all the postings on this board this is a fairly unique pedal and circuit, so I feel that we're privileged that you, the designer, have had the generosity and good grace to share the details!


Thanks, jaidee. I haven't laid hands on a Clockworks in 20+ years, but just the other day I was reverse-engineering a commercial e-drum brain, trying to establish the exact level at which it triggered. I got it just on the threshold, and there it was - the Clockworks effect! sometimes it would fire and other times it wouldn't, but always in sync with the master clock I was feeding it, making nice polyrhythms. It was so soothing I left it on at a low level all day while I worked, and it reminded me why the Clockworks is so cool. I really should build one sometime...

julia
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Re: EHX EH5385 Clockworks

Postby jaidee » 12 Jan 2013, 18:25

My attempt to tidy up the PCB artwork - component overlay removed, through-holes redrawn, contrast/brightness improved, cropped, resized and converted to JPEG.
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Re: EHX - Clockworks EH5385

Postby JuliaDee » 09 Aug 2017, 15:25

It was recently brought to my attention that the schematic I posted a few years back has an error - the charge pump diodes are backwards. A corrected schematic is attached; I apologize for any inconvenience caused.

Julia

Clockworks Schematic corrected.pdf
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Re: EHX - Clockworks EH5385

Postby Wiseblood » 01 Sep 2017, 23:58

Really cool to have such a brilliant engineer such as yourself to offer up a schematic and some insight to one of your creations. Clockworks is an underappreciated design imo but I know there are some people on here who are stoked to see this and appreciate it, myself included! Thanks JulieDee!

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