Kt150

[Harlequin]

Good morning Folks .

FYI.

Having noted , elsewhere , an interesting and potentially pertinent comment from a DIY'er regarding some early findings within the compass of his own , non , ARC equipment I thought that I would mirror my thoughts there .

" Good morning Craig , as It looks like you have another month racked up on your KT-150's , I for one would appreciate any further consideration in this regard.

I was most interested to read your earlier comment ~

" Electrically they seem to work fine. I really question the raised heater voltage specification since it does not cause a bit of voltage drop on my heater circuit. The KT-120 didn't either... "

For my part I am running an ARC Ref 150 / KT-120 amplifier and It is my understanding that ARC are currently evaluating the KT-150 ( no doubt with an eye toward future models) as an user option in current model production in place of the KT-120.

Whilst we await the official Word from ARC , early rumour would seem to indicate that the Ref 75 /4 x KT-120 might receive sanction however this may not prove to be the case for the Ref 150 sporting 8 x KT-120's !

One might speculate that the Mains transformer / Capacitor tank of the Ref 75 may have a little more head room available , whereas the Ref 150 may not .

Which brings me back to your earlier findings with regard to actual live circuit readings , which I am hoping might indicate that there may prove to be sufficient head room left in the Ref 150 for ARC central to green light this option , especially when one considers that the output tubes in the ARC Ref 150 circuit appear to be run somewhat conservatively.

Jasper."