From bruce@ashbysolutions.com Wed Jun 28 18:21:24 2006
Subject:Re: VK8M Rotary On/Off?

Hi Walter,

The Boss FS-5L will do what you want. It has a single set of contacts inside -- if you discount the LED circuit -- and a little switch on the side of the case to select the polarity. It would seem that this polarity doesn't matter, but again, it's with respect to the LED; i.e., do the contacts close or open when the LED is on?

I used a set of two FS-5L's for Leslie speed control for several years. A pair of Duracell AA's will power the LED for several weeks to several months, as long as you remember to switch the contacts so the LED is off. (Pulling the cable out of the jack might kill it, too. It's been a long time.)

Regards,

-BW

--
Bruce Wahler
Design Consultant
Ashby Solutions™ http://consult.ashbysolutions.com
978.386.7389 voice/fax
bruce@ashbysolutions.com

At 12:36 PM 6/28/2006 +0000, you wrote:
>--- In CloneWheel@yahoogroups.com, "jake92028" wrote:
>> Now I need to find which kind of music floor switch has a single
>> pole switch that would do the same thing - the regular sustain pedal
>> had me baffled as I thought they were a simple on/off, but I see it
>> depends on the keyboard's logic. I understand with the Mapper it can
>> only keep sending cc80. This is fine as long as I get a switch that
>> works in the sustain jack. Since the Mapper is obsolete anyway, it's
>> good for it still to have a useful function. Strange electronics!
>
>I've looked at all the online music stores' pedals and none of them
>are single-pole. I think this would be single-throw also (don't know
>if they even make a SPDT) ..would you believe I used to be a combat
>electrician in the service and I can barely remember this stuff?
>
>The 'throw' is the switching that happens including how many wires are
>connected, plus or minus, on each side of the switch, like the
>movement of a wall lightswitch from off to on and back = 1 plus wire,
>1 minus wire - not counting a ground screw that "should" be connected
>to ground in any large overall electrical system. A household switch's
>metal box it's mounted in works fine as ground to connect a ground
>wire to since it doesn't touch the wires. The wire conduit
>metal 'pipes' with household wiring are actually connected to the
>ground, or 'earthed' when properly done. If there's not a large
>electric service nearby to ground to, driving a big metal stake in the
>ground and 'earthing' to it works. Plastic switch boxes and conduit,
>uh-um, needs a safe ground after a limited wire run.. woops/boring.
>
>This doesn't apply in every case to low voltage signals like mine
>since I didn't hear any static or pop. Stepping on a music footswitch
>to make/break a connection is usually double-pole, double throw. Now I
>gotta' find that single pole floorswitch. Thanks for your patience .
>
>Walter j
>
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