I'm putting up for sale a pair of UcD 700HG boards. Now, heads up – these have got a bit of a hiccup, which is why I'm only asking for 50 euros + shipping from Italy. For anyone outside the EU, I'll make sure to pack 'em real good and declare them as used parts, so hopefully no import duties for you... but hey, you never know these days! 😉
These bad boys used to sing with a seriously beefy linear PSU, and man, they were killer driving two massive 18-inch subwoofers. At some point, I needed the transformer for another project, and I just never got around to setting them back up. You can see the boards in the pics below. I've given them a test run, and here's the lowdown:
These bad boys used to sing with a seriously beefy linear PSU, and man, they were killer driving two massive 18-inch subwoofers. At some point, I needed the transformer for another project, and I just never got around to setting them back up. You can see the boards in the pics below. I've given them a test run, and here's the lowdown:
- Board A: Powers on, but it makes my PSU go into protection mode. Took it to a local tech, and he reckons it's just a dodgy passive component that needs replacing. I can handle putting together kits and messing with basic tube stuff, but this surface-mount wizardry is beyond me. Of course, he wouldn't spill the beans on which part it is – wanted 80 euros for the fix, so yeah, nah!
- Board B: This one's a champ, works perfectly without any issues.
- Both Boards (A & B): Now, as you can see in the last couple of photos, the stuff around those two coils is a bit messed up. No idea how it happened 'cause these boards never took a knock or anything. Weirdly enough, I did find the two missing bits (pointed out with arrows) inside the enclosure. I don't think this caused the problem with board A though, since board B is still doing its thing.
