Hi forum,
I’m a professional artist (painter) with a HiFi hobby that took a back seat to health, and because it’s America, selling a lot of my gear to pay bills. I’m better now and looking to repair some pre-sickness gear and build some speakers. Things I make tend to look good and have questionable functionality!
I’m a professional artist (painter) with a HiFi hobby that took a back seat to health, and because it’s America, selling a lot of my gear to pay bills. I’m better now and looking to repair some pre-sickness gear and build some speakers. Things I make tend to look good and have questionable functionality!
Here’s the beast that finally turned me from a lurker to a participato.
This is a TubeLab Simple SE amp I built about 10yrs ago? About 5yrs ago it went silent. I then got sick and had to sell my speakers to pay bills. Plus it was just way down on my list of priorities. Now I’m building some new speakers and want to fix this thing. I am a novice at best when it comes to the dark arts of tube amplifier circuits.
I removed the board originally and all I could find was that the Jupiter caps had leaked. Nothing on the board looked burned. Swapping all the tubes resulted in nothing. I also originally installed the recommended current inrush limiter for what that’s worth. I could use some more knowledgable eyes and ideas to help me work through what could have gone wrong and where to start spending repair money.
Any advice would lovely and I’ll do my best to answer questions about the build… if I can remember.
BS
Here‘s some photos my dusty amp that needs help:
View attachment 1356414
This is a TubeLab Simple SE amp I built about 10yrs ago? About 5yrs ago it went silent. I then got sick and had to sell my speakers to pay bills. Plus it was just way down on my list of priorities. Now I’m building some new speakers and want to fix this thing. I am a novice at best when it comes to the dark arts of tube amplifier circuits.
I removed the board originally and all I could find was that the Jupiter caps had leaked. Nothing on the board looked burned. Swapping all the tubes resulted in nothing. I also originally installed the recommended current inrush limiter for what that’s worth. I could use some more knowledgable eyes and ideas to help me work through what could have gone wrong and where to start spending repair money.
Any advice would lovely and I’ll do my best to answer questions about the build… if I can remember.
BS
Here‘s some photos my dusty amp that needs help:
View attachment 1356414
Pictures now work.
I'm not familiar with Jupiter caps, one looks crusty as, I would replace those, perhaps (temporarily?) with regular caps of the same specs. Imho anything leaking out of caps is going to change the capacitance and that's bad.
What tools do you have, you can solder?
I'm not familiar with Jupiter caps, one looks crusty as, I would replace those, perhaps (temporarily?) with regular caps of the same specs. Imho anything leaking out of caps is going to change the capacitance and that's bad.
What tools do you have, you can solder?
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Yeah, I would have and will post in the tube amp section. 👍 My first try will be the caps. I just can’t figure why they failed so dramatically if they were the cause after 5 yrs...? My goal is to hopefully find the root cause. Which is probably me, since I built the thing. I did solder the board when I built this. Can‘t say I trust my current skills as much now though. Thanks ya’ll. I’ll repost this in the amps section now that I’m a legal poster.