CHASM REVERB

[Ice-9]

yeah i agree, he's cool, i just came back from benton wednesday...been up there for 2 weeks.

I wished I had known Rob we could of had a meet up and a few pints , there's been some good local bands on up here over the last two weeks as well.

[deadastronaut]

yeah that would've been cool...unfortunately i was up for a funeral at st marys lighthouse way...

no doubt i'll be up again sometime under better circumstances though man..

[Ice-9]

yeah that would've been cool...unfortunately i was up for a funeral at st marys lighthouse way...

no doubt i'll be up again sometime under better circumstances though man..

Ah ! Sorry to hear that , funerals aren't the best of days, I've been to far too many this year.

[threepwood]

Hey again

Just getting the bits ordered for the circuit and have been looking for the TL072P chips. The site I am using has TL072 or TL072IP. Will either of these fit the bill?

http://www.musikding.de/TL072_1
http://www.musikding.de/TL072IP_1

And finally, is the SPDT On-On ?

Thanks!

[Cozybuilder]

@Threepwood
either of the TL072's you referenced will work.
yes, the SPDT is on-on

[deadastronaut]

hi guys..i got fed up with typing untold messages back n forth, so decided to add a page to my site to make life simpler for me, and you...


http://deadastronaut.wix.com/index#!__build-your-own-pedal

[threepwood]

Cheers Rob that's great! Good work.

I hope this doesn't sound rude but would there be any way you could provide Build Docs for the pedals? I find it almost impossible to collate all the build tips that come up through the threads here on DIYSB. A Build Doc with a BIM and build notes would help immensely.

Keep up the good work!

[deadastronaut]

hi man, yep i'm working on that, trying to suss pdf's.. 

mrs astro's office skills will probably help with that..

[threepwood]

You're a gent!

Thanks Rob.

[bluebunny]

hi man, yep i'm working on that, trying to suss pdf's.. 

You wanna create PDFs, Rob?  I think the latest versions of Microshaft Orifice will do it, or else OpenOffice does it out of the box and fer free.

[deadastronaut]

ahhh cool, cheers marc, i have an old 2003 orifice prog...mrs astro knows how to do all that stuff apparently..

i'll email her the gumf at work and see what she comes up with..

[threepwood]

Thanks for all the hard work Rob.

I might hold off putting my PCB together until the build doc is up. I'm sure I'll screw it up otherwise. Ha.

[chi_boy]

Thanks for all the hard work Rob.

I might hold off putting my PCB together until the build doc is up. I'm sure I'll screw it up otherwise. Ha.

This will get you going:

http://home.comcast.net/~gprause/BuildDocs/Chasm_Reverb_V2.1.pdf

The only difference between this build doc and the final boards is that the silk screen error was fixed.  Any board that is greater than V2.1 was fixed and doesn't require REG1 or Q3 to be rotated.

Cheers,
George

[threepwood]

Thank you. Greatly appreciated!

[deadastronaut]

should have a build pdf up later if mrs astro gets time ...

[deadastronaut]

pretty crude CHASM build pdf. courtesy of mrs astro....

board design courtesy of chi boy 


https://dl.dropboxusercontent.com/u/7464107/Chasm%20Reverb.pdf

[threepwood]

Thank you to Mr and Mrs Astro and Chi Boy!

[deadastronaut]

 

[threepwood]

Would anyone be kind enough to spell out how to connect an LED to this? I've not used DPDT switches before so I'm not familiar with how to do it.

Also, is it possible to hook this up to a test rig with a 3pdt so I can make sure the board is all working before connecting the jacks and foot switch?

Cheers guys.

[Cozybuilder]

@ threepwood

If space in the pedal enclosure is not an issue, just use a 3PDT, thats the easiest way to include an LED.

There are many methods of wiring a DPDT switch for a pedal. This is what I use to include an LED: