Would it make sense to just order some cheap fuses from Amazon to use during testing/repairing?A customer of ours recently did that and even though the ad was for slow blow fuses he got fast blow instead and blew most of them before we sorted it out. So I'd look elsewhere.
Repair questions
Hey folks,
So I just inherited the last of my Uncle's gear. Along with a Rega Planar 3 he purchased (and modded) in the UK 30+ years ago, I now have a Jolida sj 502a. There are some extra Sovtek tubes, etc in another box.
I have been wanting to try tubes for a while. But my uncle said this Jolida has been blowing fuses lately.
The specs indicate using 6.3 Fast Blo.
Does it matter what kind? Glass? Ceramic?
Searched the threads here but couldn't find much info on this fuse issue.
I also know very little about tubes. Have been warned to always have speakers hooked up before testing, etc.
Should I try to find a local shop to have it looked at?
Or are there things I can do to troubleshoot?
Thanks!
So I just inherited the last of my Uncle's gear. Along with a Rega Planar 3 he purchased (and modded) in the UK 30+ years ago, I now have a Jolida sj 502a. There are some extra Sovtek tubes, etc in another box.
I have been wanting to try tubes for a while. But my uncle said this Jolida has been blowing fuses lately.
The specs indicate using 6.3 Fast Blo.
Does it matter what kind? Glass? Ceramic?
Searched the threads here but couldn't find much info on this fuse issue.
I also know very little about tubes. Have been warned to always have speakers hooked up before testing, etc.
Should I try to find a local shop to have it looked at?
Or are there things I can do to troubleshoot?
Thanks!
4 responses Add your response
Fuse type from equipment safety point of view does not matter. Fuse type from audiophile point of view matters a lot. But there is no point blowing expensive fuses. Figure out your problem. Could be as simple as he started using the wrong fuse. Should be printed or etched right on the fuse. Tube amps are not like solid state, they do not like to be turned on without speakers connected. If that was done he may have done some damage that is now causing his current problems. Could also be the tubes are old and one or more is still working but causing the fuse blow situation. Don't know, just guessing. Won't do much harm to try running with the spare Sovteks just to see. If that does it, great. Enjoy! If not, I would open it up and look everything over real close for any signs of overheating or damage. At 30 years the caps could be shot. Write down values, make a shopping list, search and get some idea what you are looking at. If nothing else you will have some idea what to expect from a repair/refurbish estimate. Basically it is a process, and you work through the process. Here's a guy had something similar and was able to fix it himself with some help= https://audiokarma.org/forums/index.php?threads/jolida-sj-502a.726000/ |