Hi Paul, it’s good news that the supplier agreed to replace them.
I’m using 8600s with Gold Lion and there is no issue after the initial failure.
Enjoy your setup☺️
I’m using 8600s with Gold Lion and there is no issue after the initial failure.
Enjoy your setup☺️
Hi Kimgg , I'm glad to hear your amp is working fine with Gold lion tubes.
My supplier is just changing the one tube that I think is faulty , the crackling sound only happens for a second so it's hard to pinpoint witch channel it comes from so fingers crossed.
It's a great sounding amp so I will miss it until it's fixed.
My supplier is just changing the one tube that I think is faulty , the crackling sound only happens for a second so it's hard to pinpoint witch channel it comes from so fingers crossed.
It's a great sounding amp so I will miss it until it's fixed.
Hi all. My new selected pair of 300B just arrived. This time I went JJ Electronic instead of Genalex Gold Lion. Everything ok! It works like a charm! 🙂 Thanks again to Kimgg for the valuable hint. The diagnosis is confirmed: faulty Genalex 😡. I will keep the other good Genalex as spare.
Just a comment for Paul: I have to say that, all in all, the Genalex seemed to perform a little bit better than these JJ. I have not an "absolute ear" (despite I'm a church organist...), but I can perceive some subtle improvement with Gold Lions... Therefore, if you succeed with your Genalex, stay happy with them!
Just a comment for Paul: I have to say that, all in all, the Genalex seemed to perform a little bit better than these JJ. I have not an "absolute ear" (despite I'm a church organist...), but I can perceive some subtle improvement with Gold Lions... Therefore, if you succeed with your Genalex, stay happy with them!
That's more good news, looks like we have just all been unlucky with tubes.
I have posted my tube off today so hope to update you all next week.
Thanks all for your help, without it I would floundering in the dark.
I have posted my tube off today so hope to update you all next week.
Thanks all for your help, without it I would floundering in the dark.
There are two reasons to cause issues.
1. your soldering
2. your bad 300B. Please use other brands of 300B
1. your soldering
2. your bad 300B. Please use other brands of 300B
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Hi Victor, can you ship COSSOR/LinLai Black Plate 30B to Italy? If yes, how to get in contact for a purchase order? Ref. eMail?
Hi Victor thanks for the help, when I can confirm things are working with the Gold lions I will get the same valves as Cosimo 3112.
Hi all , it looks like luck is not on my side with this problem. I fitted the replacement Gold lion valve and this one has the same crackling sound come from any side that I fit it.
Do you mean that, if you exchange the new tube between channels, the defect follows the tube? If this is true, very bad, but also very clear: another defective Gold Lions... I could suppose that these are tubes coming from the same, ill-fated production lot... Perhaps it's time to change music, following the Victor's suggestion...
Yes it follows the channel that I move it to.
The supplier got the faulty valve back and said he could not find a fault with it .
The supplier got the faulty valve back and said he could not find a fault with it .
Well, providing he really did it, you never know which test bed he is referring to, and if he is replicating startup conditions similar to those implemented inside TU8600...
Hi Cosimo, thanks for the help as this is my first tube amp so I don't have any experience with valves.
I don't think he is replicating the same start-up conditions, could it be a compatibility problem with Gold lion tubes?
I don't think he is replicating the same start-up conditions, could it be a compatibility problem with Gold lion tubes?
It could very well be... In facts, as soon as I realized that my problem was related to one of the tubes, I decided to go JJ Electronic, and everything went ok. On the other hand, Victor has an immense experience, and if he says that he is not proposing Gold Lion anymore, I would not insist with them. As I was telling you, I had the feeling that audio quality with Genalex was a bit better, but: 1) these feelings are quite subjective, and 2) insisting after the second failure does not seem to me really worth ("errare humanum est, perseverare diabolicum")
My supplier is sending me another Gold lion from a different batch, is it ok to use as it will not be a matched pair and have different mA and V.
Hi all, just to let you know: Victor shipped to me a complete tube set, including a matched pair of COSSOR/LinLai Black Plate 30B. I asked Victor as well to suggest me the best choice (price / performance) for upgrading the 4 coupling caps, and he shipped me 4 x ODAM V-Cap ODAM Oil Damped Advanced Metalized Audio capacitors. I just finished installing everything. The final result is UAHO! Definitely more power, much better definition in the mid range, and always a damn silent amp! Very, very, very good upgrade. Let me thank again Victor for the highly professional and real-time support.