I put together a Lightspeed this morning on a piece of perfboard. I sourced the LDRs from Farnell and just picked four out of the bag of 25. (truth is I did not know how to match them!) One of the easiest things I have built. Worked first time (apart from the pot working back to front - but easy to fix).
I have only listened to it for about an hour, both with headphones and through speakers. Very promising. Will hve to plumb it in to my main system for the acid test.
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