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  1. #1

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    Default whats the deal with Kt66 tubes in Dynaco's??

    I read that you can use Kt66's in place of the el-34's in the St 70
    Is this true, i also read the Kt77's could be used also.. The manual says differect tubes that can be used in place of also... anybody try this? good bad, indifferent?? wanna know
    MY HT RIG:
    Sherwood p-965
    Sherwood sd871 dvd
    Rotel 1075 amp x5
    LSI15 mains
    LsiC center
    LSIfx surround backs
    Lsi7 side surrounds
    SVS pb12/plus2


    2 Channel Rig:

    nad 1020 Pre-amp
    Rotel 1080 stereo amp
    Polk sda 2B
    kenwood grunt Tuner
    realistic lab 450 TT
    Signal cable IC

  2. #2

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    Default

    The KT series tubes look cool because they are a lot bigger and they have a few extra watts. To me they don't sound as good as the EL-34's. Not a lot of tube magic.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  3. #3

    Member Sales Rating: (2)

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    Default

    Oh ok, So if i find any local cheap (i havent) then i still could grab em.. I noticed the Heathkit amps take these
    MY HT RIG:
    Sherwood p-965
    Sherwood sd871 dvd
    Rotel 1075 amp x5
    LSI15 mains
    LsiC center
    LSIfx surround backs
    Lsi7 side surrounds
    SVS pb12/plus2


    2 Channel Rig:

    nad 1020 Pre-amp
    Rotel 1080 stereo amp
    Polk sda 2B
    kenwood grunt Tuner
    realistic lab 450 TT
    Signal cable IC

  4. #4

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    Default

    When you change from EL34 to KT or vice versa (I forget which way) you have to add a resistor some where too.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  5. #5

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    Jul 2001
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    FL 320
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    Default

    I remember reading something about this. Like Madmax said, you need add a resistor somewhere. A lot of people like the EL34 for its "romantic" sound. The amp was designed for EL34/6CA7 output tubes. I think modding it for KT tubes could change the specs in certain areas.

    You should order a new pair of NOS 7119 when you get the chance. NOS are becoming rare. The price of the JAN 7199 jumped $7 since I got mine. Mullard 5AR4 are going up in price as well. I'll have to order spares. This disease is killing me.

    Maurice
    CD Player: Original CD-A8T
    Receiver: Harman/Kardon HK3390
    Speakers: Polk Audio RT1000p
    "I would rather have a cup of tone than an ocean of power" **Dr. Harvey Rosenberg**

  6. #6

    Member Sales Rating: (17)

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    Northern Colorado
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    Default

    Anything you can buy now you should. NOS Tubes overall have gone way up since I got into it a few years.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

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