Support
Looper's Delight
|
Support |
|
|
Is this the "FS44" you are using? Are the switches unique for each selection or are they set up as A/B switches? when you switch from channel one to channel two do you need to deselect channel one? I think that if you were to arrange the LEDs in series and use a diode matrix to determine which LED was lit for which combination you could get it working > > Are these latching or momentary switches? > >Latching. Big humongoid chrome-plated latching stomp switches. The kind >that >give off a moderate "click" when you step on them, and you can feel it >click >in your foot bones. The old Fender-style "reverb and vibrato" type >switches. > >> >Hi Crew- >> > This is way OT, but I'll bet one of you loopers just might be the >DIY >> >brainiac to solve my problem. >> > >> >I just purchased a Carvin V3 amp head - great sounding 100-watt EL34 >> >monster, by the way - but the channel-switching footswitch has no >LEDs on >> >it. There are three channels plus a "boost" function, and all four >> >footswitches are simple SPDT switches with one lug unused. I figure it >would >> >be fairly easy to swap the SPDTs for DPDTs or, if necessary, those >groovy >> >Fulltone triple-throw DT switches, drill holes in the switch housing, >add >> >LEDs and a 9V battery, and I'd be rocking. >> > >> >The problem is, I can't find a schematic that would cause just one >channel >> >light to be on at a time. I'm boggled about how to wire it so that if, >for >> >example, I'm using Channel 1 and want to change to Channel 2, when I >press >> >switch #2 (for Channel 2), the LED for switch #1/Channel 1 goes off >and >the >> >LED for switch #2/Channel 2 goes on. So among the three channels, only >one >> >LED can be on at a time. The 4th (boost) switch would remain on or off >> >regardless of which channel is on (that one's easy). >> > >> > I spent about an hour the other night doing Google searches on >all >kinds >> >of guitar and amp DIY sites, and I checked my Craig Anderton books, >and I >> >couldn't find anything for this other than to get into some kind of >solid >> >state switching chip, which I'd rather avoid. It SEEMS like it would >be a >> >simple enough circuit WITHOUT any chips or boards, but I don't do this >kind >> >of thing often enough to figure it out for myself. >> > >> >HELLLLLLLPPPPP! >> > >> >Douglas Baldwin, coyote-at-large >> >www.thecoyote.org >> >coyotelk@optonline.net >> > >> >"Life! Life! >> >Clouds and clowns! >> >You don't have to come down!" >> >- Sly and the Family Stone >> >> >> -- >> ... >> http://www.zmix.net >> -- ... http://www.zmix.net