|HOME| |DIY FAQ| |GEO FAQ| |Debugging Page| |Links| |Schematics| |Wiki| |Layouts Gallery| |STORE|
|AMPAGE| |GEOFEX| |AMZ|

Welcome, Guest. Please login or register.
Did you miss your activation email?
October 24, 2014, 05:59:52 AM
971621 Posts in 103589 Topics by 33037 Members
Latest Member: Trevoga
Home Help Login Register
DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  Modding Boss SD-1 0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] Go Down Print
Author Topic: Modding Boss SD-1  (Read 799 times)
jonathansuhr
Posts: 129


Modding Boss SD-1
« on: April 18, 2013, 08:29:26 AM »

If I replace all the electrolytic caps that are rated <50V, is the pedal safe to run on 18v?
Logged
duck_arse
Posts: 2744



Re: Modding Boss SD-1
« Reply #1 on: April 18, 2013, 09:23:34 AM »

there is an internal zener diode to provide over-voltage protection. the value is not shown on my circuit, but it would be less than 15V, I'm guessing. these are fitted to stop damage from 18V adaptors, and the like.
Logged

"tremolo is enpugh weak". - E.B.
MartyMart
Posts: 6064


Martin L / Berlin for a while


WWW
Re: Modding Boss SD-1
« Reply #2 on: April 18, 2013, 10:06:45 AM »

If I replace all the electrolytic caps that are rated <50V, is the pedal safe to run on 18v?

They might get a little large for the enclosure, 25v or 35v is fine and should be smaller - though check when you order them.

Yes the reverse protection diode will have to be replaced.

You will gain some headroom but it's not a huge change IMHO

M
Logged

"Success is the ability to go from one failure to another with no loss of enthusiasm"
My Website www.martinlister.com
DougH
Posts: 6058


WWW
Re: Modding Boss SD-1
« Reply #3 on: April 18, 2013, 10:35:30 AM »

Is that really you, John Suhr?...
Logged

"I can explain it to you, but I can't understand it for you."
Electron Tornado
Posts: 686


Re: Modding Boss SD-1
« Reply #4 on: April 18, 2013, 01:12:51 PM »

If I replace all the electrolytic caps that are rated <50V, is the pedal safe to run on 18v?

18v is the max supply voltage for the 4558.
Logged

OK, where's the data?

"Top hole. Bally Jerry pranged his kite right in the how's your father. Hairy blighter, dicky-birdied, feathered back on his Sammy, took a waspy, flipped over his Betty Harper's and caught his can in the Bertie."
roseblood11
Posts: 480



Re: Modding Boss SD-1
« Reply #5 on: April 18, 2013, 01:17:43 PM »

No, it's +/- 18V...
Logged

wavley
Posts: 1919


Staunton, VA


WWW
Re: Modding Boss SD-1
« Reply #6 on: April 18, 2013, 01:37:22 PM »

I don't get the benefit of adding headroom to this pedal, isn't it just going to be negated by the clipping diodes?
Logged

New and exciting innovations in current technology!

darlingtonpair.bandcamp.com
eccohollow.bandcamp.com
Ben N
Posts: 3357

Ben N. - really! Now Israel, once Baltimore


Re: Modding Boss SD-1
« Reply #7 on: April 18, 2013, 03:23:24 PM »

I've got a Barber Direct Drive, which is sonically similar to an SD-1 (I use them almost interchangeably even though the Barber's midhump is slightly less pronounced) and advertised to be 18V-ready. I tried 18V for a while, but I honestly didn't hear much of a difference, if any, and it wasn't worth the extra wallwart.
Logged
EATyourGuitar
Posts: 510


ALL YOUR BASE ARE BELONG TO US


Re: Modding Boss SD-1
« Reply #8 on: April 18, 2013, 07:24:27 PM »

I don't get the benefit of adding headroom to this pedal, isn't it just going to be negated by the clipping diodes?

maybe double up the diodes while your in there?
Logged

Pages: [1] Go Up Print 
« previous next »
Jump to: