I am putting together a volume buffer and source selector.
However, I am utterly confused as to what switch I need. I want to be ablee to have 3 inputs.
However, I am utterly confused as to what switch I need. I want to be ablee to have 3 inputs.
If you want to switch three signals you need three poles.
Assuming you want to use a rotary switch, it should of course have three positions, which means you need three throws. However, with rotary switches you normally don't talk about throws but about psositions. What you need is a three-pole, three-pos switch.
If you have rocker or tumbler switches you talk about throws. A tumbler with an on and an off position is a single throw, with one on and another on position it is double throw.
hope this helps,
jan didden
Looking at the schematic symbols for various switches might help shed some light also.
3 inputs that you can select from?
I assume this is 2 channel (stereo)?
Then you'd need 2 poles,with 3 throws. (DP3T)
3 inputs that you can select from?
I assume this is 2 channel (stereo)?
Then you'd need 2 poles,with 3 throws. (DP3T)
So either a dobbelpole trippel throw rocker switch or a dobbel pole 3 position rotary.
Thank you very much!
Thank you very much!
Triple throw rocker would be very unusual. You can buy triple position rocker with a centre detent. But inside there are only two active connections.
Hi,
You might find that the basic rotary switch available is 4 pole 3 way,
(other versions being 1 Pole 12 way, 2 Pole 6 way, 3 pole 4 way).
Just double up the connections.
rgds, sreten.
You might find that the basic rotary switch available is 4 pole 3 way,
(other versions being 1 Pole 12 way, 2 Pole 6 way, 3 pole 4 way).
Just double up the connections.
rgds, sreten.
Wire two sections in parallel. Not really necessary as it would be simpler to just ignore unwanted poles, but you halve contact resistance (and double stray capacitance).
Am thinkin of just this thing myself.
can someone post a link to a 3 position stereo knob i can buy?
I cant seem to find them anywhere.
can someone post a link to a 3 position stereo knob i can buy?
I cant seem to find them anywhere.
Rotary switches are available from almost any electronics supplier. Quality may vary, of course. What is it that you can't find?
Ok so i found 2 on parts express, 2 pole 6 position.
to make an input switcher would i use shorting or non shorting.
just a dead simple line level rca switchbox for the input on my i12.
to make an input switcher would i use shorting or non shorting.
just a dead simple line level rca switchbox for the input on my i12.
I assume 'shorting' means Make Before Break (MBB), and 'non-shorting' means Break Before Make (BBM) - some of these terms vary around the world. For an input selector you want non-shorting or BBM. Most switches are of this type. Using the wrong type probably won't do any harm, provided all your sources are well-engineered and can cope with a brief short circuit.
Most rotary switches have an adjustable 'stop', so you could buy a 2-pole 6-way and set it to do 2-pole 3-way. You may have to be careful to set the stop at the right end, otherwise your knob might not line up with your panel markings.
Most rotary switches have an adjustable 'stop', so you could buy a 2-pole 6-way and set it to do 2-pole 3-way. You may have to be careful to set the stop at the right end, otherwise your knob might not line up with your panel markings.
Ok that makes sense.
So im seeing dead simple as 4 pair input rca's and one pair output rca.
The input selector knob mounted on a front panel and the rcas on a rear panel.
Perhaps some ofc 24guage copper wire in between.
Bob's your uncle?
So im seeing dead simple as 4 pair input rca's and one pair output rca.
The input selector knob mounted on a front panel and the rcas on a rear panel.
Perhaps some ofc 24guage copper wire in between.
Bob's your uncle?
So no carbonized yaks wool helical braided vacum dielelectric detuned hermaphroditic connector type stuff?
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