Momentary Switch Question

Do-it-yourself pedal building

Moderator: Ghost Hip

Forum rules
The DIY forum is for personal projects (things that are not for sale, not in production), info sharing, peer to peer assistance. No backdoor spamming (DIY posts that are actually advertisements for your business). No clones of in-production pedals. If you have concerns or questions, feel free to PM admin. Thanks so much!
Post Reply
User avatar
lotus_eater
involved
involved
Posts: 52
Joined: Wed Jul 11, 2012 8:34 pm
Location: Tacoma, WA

Momentary Switch Question

Post by lotus_eater »

Hi! I'm building a Devi Ever Sodameiser kit right now, and for the chaos (oscillation) mode I need to remove one of the caps from the circuit. I wanted to do this with a DPDT Momentary switch. Do I just solder the cap to one side of the lugs and run wire to the pcb where it should go? I'm confused! :idk: Any help would be really appreciated!
User avatar
eatyourguitar
IAMILFFAMOUS
IAMILFFAMOUS
Posts: 3127
Joined: Sun Oct 03, 2010 12:37 pm
Location: USA, RI

Re: Momentary Switch Question

Post by eatyourguitar »

you need to post a link to a schematic
WWW.EATYOURGUITAR.COM <---- MY DIY STUFF
User avatar
Dr Satan
committed
committed
Posts: 196
Joined: Thu Aug 25, 2011 4:11 pm
Location: North of the ATL.

Re: Momentary Switch Question

Post by Dr Satan »

You need a SPST NC switch between the .1uf and the 10k/2.2M/.1uf collector junction (or between the .1uf, .1uf/2.2M and base junction). That will leave the cap in and when you press and hold the switch it will lift the cap out of the circuit.
                                                               1
                                                               0
                                                               k
                                                               l
                                                               l
---------.1uf--------/ SPSTNC switch /-------0-------.1uf--------
      l                                                        l
      l                                                        l c
      l                                                        l o
      l-----------2.2M resistor------------------l l
      l                                                        l l
      l                                                        l e
      l                                                        l c
      l                                                        l t
      l                                                        l o
      l                                                        l r
      l----------------------base-----------------O
                                                               l e
                                                               l m
                                                               l i
                                                               l t
                                                               l t
                                                               l e
                                                               l r
                                                               l
                                                          ground
User avatar
eatyourguitar
IAMILFFAMOUS
IAMILFFAMOUS
Posts: 3127
Joined: Sun Oct 03, 2010 12:37 pm
Location: USA, RI

Re: Momentary Switch Question

Post by eatyourguitar »

Code: Select all

                                                        1
                                                        0
                                                        k
                                                        l
                                                        l
----.1uf--------/ SPSTNC switch /----0-------.1uf--------
      l                                                 l 
      l                                                 l  c
      l                                                 l  o
      l-----------2.2M resistor-------------------------l  l
      l                                                 l  l
      l                                                 l  e
      l                                                 l  c
      l                                                 l  t
      l                                                 l  o
      l                                                 l  r
      l----------------------base-----------------------O
                                                        l  e
                                                        l  m
                                                        l  i
                                                        l  t
                                                        l  t
                                                        l  e
                                                        l  r
                                                        l
                                                       ground


I couldn't read it so I tried to fix the spacing for you. I hope i didn't break it by moving stuff. Dr Satan maybe you want to try a free program like diy layout creator, ltspice, eagle, diptrace etc.. to draw schematic. its really easy and fast. you just take a screen shot of your schematic and post the image. ascii art is cool but I'm guessing that it is tedious work to draw it by hand with text :?: anyway thanks for taking the time to dig up the devi schematic and redraw it. :thumb:
WWW.EATYOURGUITAR.COM <---- MY DIY STUFF
User avatar
Dr Satan
committed
committed
Posts: 196
Joined: Thu Aug 25, 2011 4:11 pm
Location: North of the ATL.

Re: Momentary Switch Question

Post by Dr Satan »

I have most of those programs, I had just been working with them all day designing some layouts and needed a break. Alt + 255 and some copypasta is cake. I can even triforce.

  ▲
▲ ▲
User avatar
lotus_eater
involved
involved
Posts: 52
Joined: Wed Jul 11, 2012 8:34 pm
Location: Tacoma, WA

Re: Momentary Switch Question

Post by lotus_eater »

Thanks for the help! :)
User avatar
theavondon
Supporter
Supporter
Posts: 10742
Joined: Tue Mar 16, 2010 2:58 am
Location: Denton, TX

Re: Momentary Switch Question

Post by theavondon »

Dr Satan wrote:I have most of those programs, I had just been working with them all day designing some layouts and needed a break. Alt + 255 and some copypasta is cake. I can even triforce.

  ▲
▲ ▲

Bro, nice.
TAKE ME TO YOUR LEADER
Post Reply