two in one out splitter box.
- freq67
- Solder Soldier
I'm building a 2 in 1 out splitter for a friend and was wondering if there are any pit falls I should worry about in the design?
He want's this to be able to switch out guitars with out having to unplug them on the spot. Since this is a one out I'm pretty sure I don't need to worry about isolating because it's only going to one amp. Do I need to worry about isolating the input of the two guitars? Also since this is going to be a passive design I'm I going to have to worry about the switches popping Since there is no DC offset.
He want's this to be able to switch out guitars with out having to unplug them on the spot. Since this is a one out I'm pretty sure I don't need to worry about isolating because it's only going to one amp. Do I need to worry about isolating the input of the two guitars? Also since this is going to be a passive design I'm I going to have to worry about the switches popping Since there is no DC offset.
- phatt
- Transistor Tuner
You need buffers on each input.
All passive will mean you turn down the passive volume on one guitar then you kill the signal to both.
You can overcome that in a passive system but you loose signal strength for both and you then need to boost it back up.
you need a simple HiZ mix circuit run from battery.
Phil.
All passive will mean you turn down the passive volume on one guitar then you kill the signal to both.
You can overcome that in a passive system but you loose signal strength for both and you then need to boost it back up.
you need a simple HiZ mix circuit run from battery.
Phil.
- Nocentelli
- Tube Twister
Information
- Posts: 2222
- Joined: 09 Apr 2009, 07:06
- Location: Leeds, UK
- Has thanked: 1155 times
- Been thanked: 954 times
Or a switch?
modman wrote: ↑ Let's hope it's not a hit, because soldering up the same pedal everyday, is a sad life. It's that same ole devilish double bind again...
- Nocentelli
- Tube Twister
Information
- Posts: 2222
- Joined: 09 Apr 2009, 07:06
- Location: Leeds, UK
- Has thanked: 1155 times
- Been thanked: 954 times
A simple A-B box would do it, and I think it's unlikely to pop. Apologies to Beavis for jacking his picture -
modman wrote: ↑ Let's hope it's not a hit, because soldering up the same pedal everyday, is a sad life. It's that same ole devilish double bind again...
- freq67
- Solder Soldier
Nocentelli wrote:A simple A-B box would do it, and I think it's unlikely to pop. Apologies to Beavis for jacking his picture -
That's what I was thinking too but I was also thinking about turning them on/off each independently BUT I'm also worried about both being on accidentally. Haven't figured out how to wired them to be separate but not interact when both are on. My main concern about a switching back and forth scenario is let's say when A is turned off it goes right to B but B isn't ready yet and there is an unplugged chord making a lot of noise. My head hurts. BTW thanks all for the input.
- phatt
- Transistor Tuner
Then purchase those guitar cords with the deadman switch built into the 6.5 plug end.
They ground the hot the moment they are removed from a guitar,, quite a clever trick.
Another possible fix is a floor mounted kill switch which uses a momentary switch to ground while changing leeds.
I personally don't like adding to much complexity to things as it often becomes just more thing to go wrong.
Phil.
They ground the hot the moment they are removed from a guitar,, quite a clever trick.
Another possible fix is a floor mounted kill switch which uses a momentary switch to ground while changing leeds.
I personally don't like adding to much complexity to things as it often becomes just more thing to go wrong.
Phil.
- freq67
- Solder Soldier
Ahh........like the cord idea! Thanks!!!phatt wrote:Then purchase those guitar cords with the deadman switch built into the 6.5 plug end.
They ground the hot the moment they are removed from a guitar,, quite a clever trick.
Another possible fix is a floor mounted kill switch which uses a momentary switch to ground while changing leeds.
I personally don't like adding to much complexity to things as it often becomes just more thing to go wrong.
Phil.
- freq67
- Solder Soldier
BTW with a 3P3T how could I wire this up for two LED's to show each input that is on?Nocentelli wrote:A simple A-B box would do it, and I think it's unlikely to pop. Apologies to Beavis for jacking his picture -
- rocklander
- Old Solderhand
Information
- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
- Has thanked: 1406 times
- Been thanked: 231 times
- Contact:
positive goes to the centre pin of the third pole... each of the two other pins feed positive to the LEDsfreq67 wrote:BTW with a 3P3T how could I wire this up for two LED's to show each input that is on?Nocentelli wrote:A simple A-B box would do it, and I think it's unlikely to pop. Apologies to Beavis for jacking his picture -
or reverse that... do same but earth/negative is the centre pin of third pole... LED negative to the outer pins
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- rocklander
- Old Solderhand
Information
- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
- Has thanked: 1406 times
- Been thanked: 231 times
- Contact:
dredge.
so, I'm looking at making a stompbox.. a proper one..
I have a wee looper, and I play acoustic guitar into it. I want to hook up a car speaker to a piece of plywood so I can thump my foot on it to get a 'drum' beat kinda sound.
I am thinking I'll stick an input jack on the thing that the guitar can go into, then the speaker +ve and the guitar+ve together to go out to the looper.
the big question is, will that be okay ? as a passive unit, or am I likely to have some problems? maybe the stomp signal going up to the guitar to cause some weirdery.. dunno.. I'd rather it was passive if possible, but i guess I could put a buffer in there if necessary... will that be necessary?
so, I'm looking at making a stompbox.. a proper one..
I have a wee looper, and I play acoustic guitar into it. I want to hook up a car speaker to a piece of plywood so I can thump my foot on it to get a 'drum' beat kinda sound.
I am thinking I'll stick an input jack on the thing that the guitar can go into, then the speaker +ve and the guitar+ve together to go out to the looper.
the big question is, will that be okay ? as a passive unit, or am I likely to have some problems? maybe the stomp signal going up to the guitar to cause some weirdery.. dunno.. I'd rather it was passive if possible, but i guess I could put a buffer in there if necessary... will that be necessary?
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- phatt
- Transistor Tuner
You won't hear much as the speaker is likely 4 Ohm while your pickup (assuming powered preamp) is at line level.
You will need 2 separate circuits a two channel mixer of some sorts.
Phil.
You will need 2 separate circuits a two channel mixer of some sorts.
Phil.
- rocklander
- Old Solderhand
Information
- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
- Has thanked: 1406 times
- Been thanked: 231 times
- Contact:
sweet.. I was wondering so thank you!
so a buffer on each would sort that out?
so a buffer on each would sort that out?
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- phatt
- Transistor Tuner
A buffer will only Isolate the two sources and you would then at least hear the guitar but the speaker as pickup will need a lot more than just a buffer.
Frankly a piezo transducer with a dedicated preamp will make for a far better setup. (IMO)
There are many types already on the market and most will work better than the old speaker as a mic trick.
Phil.
Frankly a piezo transducer with a dedicated preamp will make for a far better setup. (IMO)
There are many types already on the market and most will work better than the old speaker as a mic trick.
Phil.
- rocklander
- Old Solderhand
Information
- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
- Has thanked: 1406 times
- Been thanked: 231 times
- Contact:
thanks.. I've already ordered a piezo, but until that arrives.. I have a speaker, heh.
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.