fuse

Hi all.. I picked up Eico HF-81 which has work done by NosValves decade back.. I did post about that earlier in one of the thread. I powered it up in variac at 40 volts and every 20 minutes stepped it up. I did not see the pilot light on even when i turned it on at 40. I slowly brought it...

Hello all, Long time fan/reader (new member) first time poster. I recently purchased a pair of Cerwin Vega (CV) LS-15. While cleaning them and checking the speakers over more thoroughly at the house I find the fuses have been foiled. The ones in the slots are AGC3 and I have looked at the CV...

Hi. Long time listener, first time caller. I have an opportunity to get a pair of very good condition L710's for a decent price. From my research they seem to be early models with square corners, cloth grills, a/D/s logo, thumbscrew terminals, butyl (rubber) surrounds and no tweeter fuses. Most...

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...

Hi guys, I always do fuse the B+ rail on my creation. I am a McIntosh guy, and all vintage MCxxx had an internal fuse on the high voltage PS, and of course one in the primary winding accessible for a common user. Some will argue that it is useless, as by the time the fuse blow, damage is...

Hi everyone. I am new to this forum so be easy on me. I know just enough to get in trouble. Any speaker gurus out there, this is for you. I have a Phase Linear 400 II and I want to hook up multiple speakers. 4 pair to be exact. If you are not familiar with the Phase Linear it only has...

Well first this 2275 had no left channel. So we recapped pretty much everything but the FM boards. Still no left channel. So we checked the B+, it was fine (35 V). Then on the main amp boards DC offset we adjusted R741 to the correct value, all is well. Then, on the idle current adjustment...

Hello all! I have talked about this in another thread but it suggested I start a new one. I have a Motorola SK32W that I inherited when I purchased my house. It sat in the garage here in New England probably for 6 years or so until I moved it back in the house this summer. Not being up to...

Hi everyone. My Sony STR-2800 has blown two 4AT fuses (F803 & 804). I wasn't there to witness it, so it's hard to say how exactly it happened and whether someone maxed out the volume knob or something. It powers on, but there's no signal coming through the speakers and headphones outputs. A few...

So awhile back I got a Luxman R-1120A receiver with 3 out of the 4 dial lamps burnt out, although it otherwise appeared to be working properly and sounded great. I finally got around to replacing the bulbs, I used 12V/70mA rather than the original 12V/100mA since the latter is hard to come by...

Hi All, I hate to make a new thread about the Pioneer SX 434 as there seems to be so many, but I am stuck a moment in my repair process and I would like to be able to revitalize this unit without having to take it to a shop (and certainly without having to throw it out, particularly because I...

I bought a package of Radio Shack fuses for my amp and after I installed one I found out they were made in China? Should I take it out?

Working on a nice SX-535 right now... came to me with both 4A fuses on the Power Supply Circuit board blown. Replaced both of them right off, powered the unit up and they blew again immediately. As it stands right now there is signal from both channels albeit quiet, heavily distorted signal...

Hello Audiophiles! I am a newbie in Audiokarma and I would like to seek an advice for my HiFi problems. It's my old sugden a21a where it keep blowing the AC fuse. Fuse rating was 1.6A 250V slow blow. Noticed that there is a fuse connected to the power supply and it doesn't blow. What did I...

I've got a Sansui 9090db in pretty good condition, but both channels were coming in and out for some time (and sounded scratchy). Recently, the left channel went out altogether. I should mention that I've never attempted to service/repair a receiver. In an attempt to diagnose the problem, I...

I was going to replace the fuses in my HK930, there are a total of 3 and they are all rated at 3amp 250v. Are they all fast blow fuses? I read on a 330c post that the speaker fuses are always fast blow, I was just unsure in the AC line. I have a few bucks to blow and wanted to hear for myself...

One of the few pieces of vintage audio equipment I still have that my grandfather gave me is a Sansui RA-500 reverberation amplifier. It's a funky piece of kit with some psychedelic rainbow colored lights on the front. It was a lot of fun when I was in college both for the sound effects and the...