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| | |-+  Can I use KT66s with Nik's standard Power transformer
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Author Topic: Can I use KT66s with Nik's standard Power transformer  (Read 6030 times)
BillyRocket
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« on: January 25, 2015, 09:21:20 PM »


I am enjoying the amplifier that Nik built for me - it's sounds wonderful and his workmanship is outstanding!

I am writing to ask if the power transformer specs would allow me to run KT66 power valves, as I have read they draw a greater heater current than the 5881 / 6L6 valves.

I believe the KT66 draw 1.3 amperes and the 5881 / 6L6GB draw only 0.9 amperes for heater current.

I really don't want to fry the transformer just trying some different valves!

Cheers and thanks in advance for any advice - this is a GREAT amp!
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BillyRocket
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« Reply #1 on: January 26, 2015, 10:34:27 PM »

I emailed Nik and he informed me that the PT is rated at 6A in these amps - and will cope with the extra current of KT66 tubes - it will of course run a little hotter but at the moment the heat from the Xformer is not great ( I have had several amps which seem to run much hotter including an English made Mxxxxxxx amplifier  Wink

Quick reply to my query from Nik - great service for great amps! 

Rock on Grin


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