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#1 |
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diyAudio Member
Join Date: Dec 2003
Location: in a hole
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I need some help deciphering switch lingo.
I'm looking for a 3PDT ON-ON switch. In my search, I've come across a number of different things. First there's the 3PDT ON-OFF-ON switches. These have a center(off) position which I DON'T want. Then there is the 3PDT ON-NONE-ON switches. This is where I get confused. What is this? Is it the same thing as an ON-OFF-ON, or is it the same as ON-ON. I'm not clear on whether they're saying the center position is OFF(open), or whether this means there is no center position at all(exactly what I DO want). The documentation on the switches I've been looking at doesn't seem to make this any clearer. I already screwed up once when I thought I could get by with DPDT switches, until, after the fact, I checked my wiring diagram and realized I needed 3 poles, not 2. DOH! Now I have to find another project for the dpdt rockers. Not that that will be tuff, but it irks me nonetheless. I'm hoping someone can point my dumb *** in the right direction. Many thanks! Also, if anyone has seen a good source for cheap 3PDT ON-ON switches, let me know, these suckers aren't cheap! |
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#2 |
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diyAudio Member
Join Date: Sep 2003
Location: Midland, Michigan
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ON-NONE-ON means that there is no center position.
It is an "ON-ON" switch.
__________________
Frank |
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#3 |
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diyAudio Member
Join Date: Dec 2003
Location: in a hole
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Sweet!
That's what I was hoping, and kinda figured. But after the first screw up I had to be sure. Thanks a mil Frank! |
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#4 |
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diyAudio Member
Join Date: May 2004
Location: Liverpool / Leeds, UK
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Have you tried looking for a rotary switch? I used a three pole six position one of these for pickup selection on a guitar, worked quite well. There's a three pole four position switch here, it would work but you'd have two redundant positions, or you could probably find a three-pole two position switch with a bit of searching.
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#5 |
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diyAudio Member
Join Date: Jun 2003
Location: Planet Earth
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Some rotary switches can be locked to a desired number of positions, in case the switch has more than needed.
(I'm not subscribing to this thread, just came across it by coincidence). Jennice
__________________
I get paid to break stuff. My g/f gets paid to play with children. Life is good. |
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