Your response is perhaps a bit terse; not exactly narrowing it down for the rest us, those who might be wanting to try them in our own amps...
If you care to look in the Allnic section under T2000 anniversary you will see these were confirmed ok by the designer to be used! I did not elaborate to you where I got them simply because Iam Uk and you being Canada, that is all. I have been told by my supplier that they are a drop in replacement from the kt150.
would you be so kind as to elaborate where it was you were able to buy these tubes? did you learn from allnic these were a drop in replacement in your amp? If not, what convinced you?
i see this similar to all the churn when the KT150 first showed up, many folks wanting to give them a try where Kt120s were used but unsure if the mfg of a particular brand had “blessed” them for use.
Yeh, you're amp really needs to be designed around the KT 150.Got the spec sheet? Need to look at the heater current etc.
At least they dont have the, shall we say 'unfortunate' looks of the KT150.
Edit: found it - https://shop.ehx.com/catalog/addimages/kt170-tung-sol-specs-curves.pdf
Getting quite far from KT88 though ... this looks like a stretch too far for many amps.
My Leben CS1000p was designed around KT120 but not sure I'm in a rush to try these. (Actually I'm running KT90s, much sweeter and less ' thick' sounding in the Leben than KT120s or KT150s - KT90s sounds like a grown-up EL34.)
You planning on inserting one somewhere haha!
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