charliewphelps@gmail.com wrote:
I had this exact problem with some PS Vane EL34's. Rachel at Grant Audio explained that there was a problem with the screen grid in the early batches of the tube and that they had to make a change in the design to fix it. The screen grid takes to much current and will melt down. Don't use them- they may take out your transformer. She gave me a new set, no questions asked. Doubt you can get that to happen with Ebay but good luck.
It's a shame that the tube has problems, I think they have a lovely sound but I never let them run when I'm not around.
Charlie
Hey Charlie,
Do you know, would early batch versions be the tubes with the gold colored base, and the recent "fixed" versions be the ones with the gray base.
Mine were the ones with the gray base, and based on what I have found on the internet, that's the newer version.
Which one are yours?
Thanks,
Chris