blowing fuses

Hi AK’ers, I’ve got a magic smoke story to share, and I’m hoping for some advice on how to fix it. I’ve been working on a Sherwood S-7110 for a bit now, I got it in pretty rough shape with no right channel output, and after some unhelpful attempts to “fix” it. After a full recap, a replacement...

Hey all, it's been a while, back at it! I'll keep this brief. When I first tested the unit it had a blown right channel fuse (the fuse that sits next to the main filter caps) along with the fuse on the underside for the same channel (FU3), both 3A. I replaced both fuses, removed and tested the...

Bought a pair of Heathkit W-7M tube amps 3 months ago, in all-original condition with NOS Rubys installed about 5 years ago. They've sounded amazing up until 2-3 weeks ago when one of them started blowing a fuse, the 2-amp slo-blo. Two weeks later the other amp started doing the same thing...

Just picked up my first 730, stoked! I've had loads of 330c's and 430's, even picked up a 330B the other day, but wow, I was so excited to get this 730 even though its condition was the dreaded "untested". I'll cut to the chase here. The left channel is blowing it's fuses. When I first plugged...

I'll do my best to state the facts, just the facts: Came across a decent looking 330c, cleaned the pots and interior dust, had to install new speaker terminals as previous owner had hacked them out of the unit After new terminals installed, tested the unit and found left channel good and...

Hey guys! I'm helping a friend repairing his beautiful Denon DP-80. About a week ago, he turned it on without using the step-down transformer; so our denon got a 220V charge instead of a 100V. The plate spinned a few seconds then stopped. The 1.6A 30mm fuse was blown, we tried to swap it with...

Hi guys, I was given a Marantz 1060 stereo amplifier and when I turned it on it was dead. I opened the cover and noticed the 3 amp fuse was blown. I replaced it, powered it on, and had the exact same thing happen. What could the cause be? Any service manuals around here? I'm not that...

I posted this in the Yamaha forum, but got no replies at all. Is this a better forum for this topic? (Sorry, trying to learn the ropes...) Ok, so not that much drama but still my first major screw up. I found this posting from a while back from someone else that explains almost exactly what I...