Author Topic: can i skip the battery clip?  (Read 1799 times)

hubble

can i skip the battery clip?
« on: July 28, 2006, 10:46:09 PM »
and just use a dc jack? if so how exactly would i wire it

petemoore

Re: can i skip the battery clip?
« Reply #1 on: July 28, 2006, 10:57:52 PM »
  I'll tell how I wire 'em.
  [100uf +], I use a metal DC jack, the barrel, if in a metal enclosure is good contact, so I make the pin + and the Barrel -, for NPN Neg Gnd. at least.
  Actually I put the black and red wires to the - and + poles of the electrolytic, then put that on the DC jack, if there's not a cap across the power supply +/- already on the board.
  Just one example of wiring and types of jacks....
  Someone tell us why that's not the optimal way...probably because some effects may not like grounds here 'and there, better to use an isolated jack?
 
« Last Edit: July 28, 2006, 10:59:23 PM by petemoore »
Convention creates following, following creates convention.

hubble

Re: can i skip the battery clip?
« Reply #2 on: July 28, 2006, 11:29:03 PM »
http://aronnelson.com/gallery/Mihkels-layouts/MarshaValveTube
i saw this in the layout gallery, assuming that layout with the boss type jack will that work? using the usual negative pole (sorry i dont know if there are correct terms for the jack poles), and the other one going to the usual positive?  what about the third pole

John Lyons

Re: can i skip the battery clip?
« Reply #3 on: July 28, 2006, 11:41:26 PM »
One lug is ground, one is hot and the other is for the switch inside the DC jack. When you plug in a DC plug the switch inside takes off the battery connection.
I believe on the smallbear site where you order the DC jacks there is a diagram. SHould be at General Guitar Gadgets as well under the wiring diagrams.
Basic Audio Pedals
www.basicaudio.net/

hubble

Re: can i skip the battery clip?
« Reply #4 on: July 28, 2006, 11:56:49 PM »
ok, so the 3rd lug is unused unless there is a battery connected?

i found this pic, http://www.generalguitargadgets.com/diagrams/switch_lo_dcjack.gif

does that mean that nothing is connected to the ring of the input jack if i omit the battery clip?   (or should the ring still be grounded?)

thanks for the help so far
« Last Edit: July 28, 2006, 11:58:29 PM by hubble »

formerMember1

  • Guest
Re: can i skip the battery clip?
« Reply #5 on: July 29, 2006, 12:09:51 AM »
http://www.smallbearelec.com/Detail.bok?no=93

that is the way i figured it out when i started.  THat is for negative ground. For positive ground, just make all the plus's a minus and make thall the minu's a plus.

hope this helps

hubble

Re: can i skip the battery clip?
« Reply #6 on: July 29, 2006, 12:12:56 AM »
AH! i remember seeing that pic.  i always like how smallbear labels their pics(like the stereo/mono jacks).  but what about the ring on the input jack, assuming i omit the battery clip and the 3rd pole of the dc jack is not needed...?

aron

Re: can i skip the battery clip?
« Reply #7 on: July 29, 2006, 01:45:56 PM »
If you only intend to run with no battery, you can use a mono plug.