KT-120 tubes vs Gold Lion KT88's

Wolf,

To quote from one of my favorite movies, "Now who can argue with that!?"

I admit I was initially put off by 150s…the pickle shape reminded me of a building in London. I got over it.

Not all amps that are okay with 120's are also with 150's, the Music Reference RM-200 being one. I think some parts values would need to be changed in that amp. Best check with the maker of an amp before putting in 150's.

Wolf, at the introduction of the 150s there was much talk regarding the 150s as a direct replacement for, say a set of KT88s, because the transformers and/or power supplies may need to be upgraded.

I haven't been keeping up with this topic and I'm not intending to put you on the spot but are you saying you haven't heard of any problems associated with replacing KT88s with KT150s?

I have a pair of Carver VTA 180s and I believe his sales information states that his latest line of VTA 200s and 350s are able to use the KT150 tubes. Might this simply be a bit of upgrade hype?

I have had an ongoing extremely scientific and formal survey of this issue (upgrading an amp to handle the instantly destructive utterly dangerous death hazard of 120s or 150s needing heater juice that will instantly destroy the amp, and all life within 11 feet) using informal and clearly amoral studies of data and nearly incoherent blather here and elsewhere. The results indicate nobody has experienced this issue and lived to tell about it…I had KT120s in my trusty 502p for nearly 3 years…replaced with KT150 last December with no issues except burnt fingers from adjusting the blinky light bias screws. The current score in my survey is as follows:

No issue with unmodded amp using 120s or 150s: 317,412.

Issue with catastrophic amp failure after which there is no reason to ever trust in data from posts like this one: 0 (zero)

Keep checking here for updates on this survey.