|  | 
12-19-2009, 06:55 AM
| | |  please help me with my On/Off switch
Sign in to disble this ad
I have a actieve bass with 2 vol. and 1 tone.
I have add a On/Off switch in the bass but i can't find a wiring diagram. can some one help me?
and sorry for my bad english |
12-19-2009, 08:11 AM
|  | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | | By on/off switch, you mean a killswitch?
If so, place an SPST (Or SPDT, DPST or DPDT.) switch across the tip and sleeve terminals of the output jack. |
12-19-2009, 06:36 PM
| | Registered User | | Join Date: May 2006 Location: Pietarsaari, Finland | | | If it's the preamp you want to switch on and off we're gonna need to find out what kind of preamp you have, some can be switched (G&L's for instance) but some needs battery power to function (EMGs for example).
__________________
G&L Club Founder & Member #1 | SWR Mo'Bass Club #23 | Fender MIJ Club #54 | Yamaha Club #95 | Ampeg Club #154
|
12-21-2009, 05:32 AM
| | | | sorry i mean a killswitch.
but i don't understand things like SPST.
so is there a wiring diagram on internet or something? |
12-21-2009, 08:57 AM
| | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | Quote:
Originally Posted by BloodBass  sorry i mean a killswitch.
but i don't understand things like SPST.
so is there a wiring diagram on internet or something? | 
This diagram shows a DPDT switch.
You can choose either an SPST, SPDT, DPST or DPDT, just wire the terminals as shown. |
12-21-2009, 09:17 AM
|  | keepin' the beat since the 60's | | Join Date: Dec 2007 Location: Studio City, SoCal, USA | | | I also add the mute or kill switch to many of my basses. It is really handy between sets, etc.
However, I don't know if you can short the output of the active preamps in this way without damage to the preamp. Anyone know for sure?
__________________
We never really grow up - we just learn how to act in public.
|
12-21-2009, 09:21 AM
| | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | Quote:
Originally Posted by Gio S I also add the mute or kill switch to many of my basses. It is really handy between sets, etc.
However, I don't know if you can short the output of the active preamps in this way without damage to the preamp. Anyone know for sure? | It's fine.
Remember that if you have a volume control after your preamp, turning it to "0" shorts the output to ground.
Last edited by line6man : 12-21-2009 at 09:23 AM.
|
12-21-2009, 10:24 AM
| | keepin' the beat since the 60's | | Join Date: Dec 2007 Location: Studio City, SoCal, USA | | | It depends on how the volume control is wired.
The wiper can ground the output of the pot rather than the input, much the way tone controls are wired. The preamp always sees the constant resistance of the pot. The switch is always 0 Ohms when closed.
I think that it is best to check with the preamp maker before installing the switch.
__________________
We never really grow up - we just learn how to act in public.
Last edited by Bassamatic : 12-21-2009 at 10:27 AM.
|
12-21-2009, 10:26 AM
| | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | Quote:
Originally Posted by Gio S It depends on how the volume control is wired.
It can ground the output rather than the input, much the way tone controls are wired. | It doesn't matter either way, it isn't going to hurt anything to ground the output or the input of a preamp.
Don't worry about it. |
12-21-2009, 10:52 AM
| | keepin' the beat since the 60's | | Join Date: Dec 2007 Location: Studio City, SoCal, USA | | | Well, it is shorting the output of the preamp to ground. The circuit may or may not be able to tolerate a short without blowing the output devices.
Of course it is very low level, but it is all dependent on the design. The preamp expects to see a load of 250-500K or more and is designed for this and not a short.
__________________
We never really grow up - we just learn how to act in public.
|
12-21-2009, 10:56 AM
| | | I don't have any preamps in this bass so thats not a problem 
but still don't get it. i have to put it betweeen the output and the ? |
12-21-2009, 11:05 AM
|  | Registered User | | Join Date: Nov 2008 Location: Minnesota - Twin Cities | | | Dumb Question (I'm NOT an engineer)
Why not just simplify it and kill one of the plug terminals?
Wouldn't this be the lowest risk?
__________________
-------------
-------------
(o)\ ! /(o)
-------------
Minnesota Classic VW Collector & Peavey USA Custom Shop Freak
Peavey USA Club Member # 122 (X40) Bassists who drive a VW club #? (x20+)
|
12-21-2009, 11:22 AM
| | keepin' the beat since the 60's | | Join Date: Dec 2007 Location: Studio City, SoCal, USA | | | If the bass is passive with no preamp, you just use the switch to short the 2 terminals on the output jack, connecting the output to ground. = total silence. Works great, no click or pop.
If there IS a preamp, this connects the output of the preamp to ground, short circuiting it. This may or may not be damaging to the preamp.
__________________
We never really grow up - we just learn how to act in public.
|
12-21-2009, 11:23 AM
| | Registered User | | Join Date: Nov 2008 Location: Minnesota - Twin Cities | | | Gio..
Was Click/pop an answer my question.. unsure if the thread was completely read
__________________
-------------
-------------
(o)\ ! /(o)
-------------
Minnesota Classic VW Collector & Peavey USA Custom Shop Freak
Peavey USA Club Member # 122 (X40) Bassists who drive a VW club #? (x20+)
|
12-21-2009, 11:37 AM
| | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | Quote:
Originally Posted by MNAirHead Dumb Question (I'm NOT an engineer)
Why not just simplify it and kill one of the plug terminals?
Wouldn't this be the lowest risk? | The problem with simply disconnecting the signal is that then you get that "open guitar cable" buzzing sound.
In order to get a totally silent output, you have to ground the signal. |
12-21-2009, 11:59 AM
| | Registered User | | Join Date: Nov 2008 Location: Minnesota - Twin Cities | | | Couldn't we kill both conductors "DPDT"
__________________
-------------
-------------
(o)\ ! /(o)
-------------
Minnesota Classic VW Collector & Peavey USA Custom Shop Freak
Peavey USA Club Member # 122 (X40) Bassists who drive a VW club #? (x20+)
|
12-21-2009, 12:38 PM
| | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | Quote:
Originally Posted by MNAirHead Couldn't we kill both conductors "DPDT" | If you wanted to disconnect the preamp, and short the output to ground, you could do that, like in this older diagram I have.  |
12-21-2009, 01:03 PM
| | | I'm confused as hell now 
tis is the diagram that im using now. were do i have to put the kill switch? |
12-21-2009, 01:06 PM
| | Supporting Member | | Join Date: Jun 2008 Location: Close to Los Angeles, CA | | Quote:
Originally Posted by BloodBass I'm confused as hell now
tis is the diagram that im using now. were do i have to put the kill switch? | Between the tip terminal of the output jack and ground. | | Thread Tools | Search this Thread | | | | 
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off | | | |
