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Using a KT66

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mvbaaren

Post subject: Using a KT66

Posted: Wed Nov 28, 2018 10:35 am

Joined: Tue Nov 27, 2018 10:48 pm
Posts: 1

Can a KT66 power tube be used in the Triton if an appropriate cathode bias resistor is used, as is suggested in the documentation for the Tramp? Also, would the output transformer primaries have to be switched to 2.5 K or left at 5K, again per the Tramp documentation? Any other things to consider, say heater current requirements, if I wanted to run a KT66 in a Triton? Thanks much.

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sazafraz

Post subject: Re: Using a KT66

Posted: Fri Nov 30, 2018 8:50 pm

Experienced

Joined: Wed Aug 26, 2009 11:27 pm
Posts: 273
Location: Ontario

Looking at the schematic it says the power trans has 1.5 amps of heater current avail

Coco will have to confirm

Kt66 draws 1.3 amps

6l6 draws . 9 amps. 6v6 draws less
6sj7 draws .3 amps

6l6 +6sj7 =1.2amps

kt66+6sj7=1.6amps

the only kt66 that I know of that draws .9amps is the new production tung sol

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coco

Post subject: Re: Using a KT66

Posted: Fri Dec 14, 2018 12:48 pm

Holy Ghost

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada

Transformer specs say it can provide 100mA at High voltage and 2.25 A heater current.

I expect it will power the heaters, the bias current should b fine too. Use the 4K bias tap.

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DumbleJum

Post subject: Re: Using a KT66

Posted: Thu Oct 24, 2024 12:08 am

Joined: Wed Oct 23, 2024 3:11 am
Posts: 1

coco wrote:

Transformer specs say it can provide 100mA at High voltage and 2.25 A heater current.
fnaf 1
I expect it will power the heaters, the bias current should b fine too. Use the 4K bias tap.

I found it to be quite good and the power is quite good.

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