When the weather got warm here (which lasted a week -- then it got cool again!), I decided to try out some soiled state amplification to keep things a little cooler.
I ended up pulling out an HH Scott LK-60, the kit form of the Scott 260 amplifier. This fairly early ss product used a capacitor-coupled, quasi-complementary circuit topology. This approach - born, it is said, of necessity - got the star treatment in a gushy article on the internet long ago. The original site/link is long gone, but a copy (sans images) may be seen at the link below (or it can be found via the Wayback Machine).
Thing is, I couldn't ever tell if the article was sincere or satire! Thus, when an LK-60 showed up at the NEARC antique radio fleamarket a couple of years ago (in wooden case) cheap, I couldn't resist it. The volume control pot was virtually frozen (and controls dirty, of course), but other than that, it was in working order.
Put it in the basement for... well... years.
To cut to the chase, as-found and utterly unrestored (i.e., all original passives, including the coupling caps), this actually is a nice-sounding little amplifier. I've tried it with a variety of loudpspeakers, but have been really enjoying it with the tiny, cheap 4" FR Fostex kits that Madisound sells (and a subwoofer, in the interest of disclosure). Nice lifelike midrange and generally good sound overall. I'd expect it to be even better with fresh output coupling caps -- but based on the way it sounds as is, I've gotta admit, I am not in a big hurry to refresh it.
Anyone else here using a quasi-complementary Scott ss amp or receiver regularly?
all the best,
mrh
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