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Stewmac light cycle II
Posted: Wed Jul 02, 2025 11:25 am
by laurie
Picked up one of these locally on the weekend. Unopened (unbuilt). Will be an interesting pedal... l haven't seen the LDR approach before.
https://www.stewmac.com/kits-and-projec ... 82pkIiiz2t
Re: Stewmac light cycle II
Posted: Wed Jul 02, 2025 12:42 pm
by Pepe
Nice! I just read that it is an exact copy of the Mu-Tron Phasor II. Very interesting!
Re: Stewmac light cycle II
Posted: Fri Jul 04, 2025 3:31 pm
by bigtone23
Very cool!
I have an original Phasor II I got in a trade in the mid 90s. Been living on the big, cumbersome board ever since.
It's a proper, big, cumbersome pedal, powered with a hardwired AC cable.
Sounds amazing, though!
Re: Stewmac light cycle II
Posted: Fri Jul 04, 2025 8:23 pm
by laurie
bigtone23 wrote: ↑Fri Jul 04, 2025 3:31 pm
Very cool!
I have an original Phasor II I got in a trade in the mid 90s. Been living on the big, cumbersome board ever since.
It's a proper, big, cumbersome pedal, powered with a hardwired AC cable.
Sounds amazing, though!
That would be a sweet "pedal"!
Re: Stewmac light cycle II
Posted: Sat Jul 05, 2025 5:59 am
by bigtone23
Re: Stewmac light cycle II
Posted: Sat Jul 05, 2025 11:06 am
by laurie

- Thumbs_up.jpg (55.76 KiB) Viewed 44317 times
Re: Stewmac light cycle II
Posted: Sat Jul 05, 2025 4:36 pm
by Pepe
Yep, that's a pedalboard that I would tinker around with for more than five minutes.
Re: Stewmac light cycle II
Posted: Fri Jul 11, 2025 3:09 am
by laurie
The build is straightforward so far. Boring, even.
You can see the 6 LDRs around the LED. I used 600 grit sandpaper and sanded the surface of the LED to get more sideways diffusion onto the LDRs.
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- Lightcycle_a.jpg (373.66 KiB) Viewed 44083 times
Re: Stewmac light cycle II
Posted: Fri Jul 11, 2025 12:33 pm
by laurie
Done! Works. Interesting sound. Takes a little bit of effort to dial in the trim-pots, but all good!
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- Lightcycle_b.jpg (245.06 KiB) Viewed 44052 times
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- Lightcycle_c.jpg (137.44 KiB) Viewed 44052 times
Re: Stewmac light cycle II
Posted: Fri Jul 11, 2025 3:19 pm
by Pepe
Looks like fun!