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Build an Analog Fiber Optic Guitar Cable
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W Pirkle
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May 5, 2016 - 12:10 am
Member Since: January 29, 2017
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Check out this old article I published when I was an undergrad student way way way back...

http://www.willpirkle.com/abou.....dom-stuff/

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Derek
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May 5, 2016 - 12:56 am
Member Since: November 19, 2015
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Cool stuff, Will!

That ad for the Carvin power amp brought back memories. I almost bought that to pair with my ADA mp-1, but ended up getting a Boogie 50/50 instead.Laugh

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W Pirkle
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May 5, 2016 - 1:06 am
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I play Boogies these days - a DC-2 and a Lonestar Special. But at the time I wrote that article, I was a 100% addicted Gallien-Kreuger GK-250ML die-hard... And I still have the 250, though I spray painted it in blue-sparkle automotive paint a few years back after replacing the speakers...

I hear that the old MP-1's are considered classic now and going for big $$$ on the used market!

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Derek
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May 5, 2016 - 10:24 pm
Member Since: November 19, 2015
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Nice! I remember those GKs. I've got a Mark IV now (and still have the mp-1) but don't play as much as I used to anymore.

I assume you built some of those fiber optic cables, do you still use them? If I can get motivated I'd like to make one.

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W Pirkle
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May 6, 2016 - 3:59 pm
Member Since: January 29, 2017
Forum Posts: 573
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I do still have the original one I made for that article and amazingly it still works. However, knowing what I know now, I'd probably change the design for a higher quality (lower THD) transmitter. I don't use it in practice any more.

But one of the things I experimented with after that project was published was "optical FX" -- we found that if you severed the fiber optic cable, but held the two ends near each other with a few mm (up to about 1/2 cm) the information would still flow and you could do things like place semi-transparent plastic in the "gap" to create distortion, or move a knife blade back and forth for a gapper effect. A friend of mine blew smoke across the gap and it made a really interesting distortion effect as well. Finding the parts would probably be the most difficult part - not sure if Motorola makes that stuff anymore...

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