HT Soloist 60 making a loud popping

General Discussion Forum - Voice The Sound In Your Head
Post Reply
Posts: 1
Joined: Tue May 14, 2019 3:32 am

Tue May 14, 2019 3:14 pm

Hi all,

I have a blackstar ht soloist 60 for more than 3 years and few weeks ago the amp turned off by itself. I opened it and saw that one diode and capacitor from rectifier bridge had burned it out (D22 and C144 - schematic attached here). These bridge capacitors are 10n 500v, but I didn't found these capacitor with the same voltage so I replaced them by 10n 2kv instead.

Now the amp is making a "hum" noise (i'm not sure if it's 60hz or 120hz) and loud popping. I recorded that sound at ... em/s-4Yc3u
This defect get start happening after some minutes, maybe something between 5 and 20 min.

Do you know what could be the problem now? The power tubes? Should I consider replace all filter capacitors? I already replace one of them (C138) but they are expensive here in my region and I'm not sure that they are damaged.
Screen Shot 2019-05-14 at 11.04.11.png
Screen Shot 2019-05-14 at 11.04.11.png (120.71 KiB) Viewed 6468 times

Post Reply
  • Information
  • Who is online

    Users browsing this forum: No registered users and 19 guests