The Dynaco Tube Audio Forum

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The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


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    Dynaco Mk IV's

    harpy
    harpy


    Posts : 94
    Join date : 2012-02-04

    Dynaco Mk IV's Empty Dynaco Mk IV's

    Post by harpy Sat Feb 01, 2014 3:29 am

    Were the Mk V1's a good amp?  They seem to be pretty rare.
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    DarthBubba


    Posts : 88
    Join date : 2012-05-05

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    Post by DarthBubba Sat Feb 01, 2014 3:28 pm

    harpy wrote:Were the Mk V1's a good amp?  They seem to be pretty rare.

    Think of them as a single channel St-70. Same everything in the circuit except the power transformer is smaller.
    Sal
    Sal


    Posts : 221
    Join date : 2009-02-05
    Location : Central New Jersey Dynaco-ST70.com

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    Post by Sal Sat Feb 01, 2014 4:22 pm

    Are you asking about the Mark 4 or the Mark 6?

    Sal
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    DarthBubba


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    Post by DarthBubba Sat Feb 01, 2014 4:42 pm

    Sal wrote:Are you asking about the Mark 4 or the Mark 6?

    Indeed, I read the topic line and missed the "V1" in his question, which would be a "6", not a "4."

    Anyway, the Mark 6 (VI) was a 120 watt mono amp from Dynaco that used a 7199 input tube and a matched quad of 8417 output tubes, that were hard to find even when the Mark 6 was being manufactured.

    Never seen one in person, much less listened to one.
    Sal
    Sal


    Posts : 221
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    Location : Central New Jersey Dynaco-ST70.com

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    Post by Sal Sat Feb 01, 2014 4:51 pm

    I have a pair of near mint Mark VI's and 4 quads of NOS 8417's which cost me dearly...

    Sal

    Dynaco Mk IV's Mk6a
    Dynaco Mk IV's Mk6b
    sKiZo
    sKiZo


    Posts : 1530
    Join date : 2013-04-01
    Location : Michigan USA

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    Post by sKiZo Sat Feb 01, 2014 4:58 pm

    Dearly is putting it mildly. Even single tubes are what ... $85 for decent. Times 8 adds up quickly.

    Rumor has it you can convert the amps to use either EL34's or 6550's ...
    Sal
    Sal


    Posts : 221
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    Location : Central New Jersey Dynaco-ST70.com

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    Post by Sal Sat Feb 01, 2014 5:03 pm

    You can convert them for 6550's with some component changes but I opted to keep the circuit original. I have not used them yet but will do so when I redo my living room and connect them to my Klipsch speakers.

    Sal
    harpy
    harpy


    Posts : 94
    Join date : 2012-02-04

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    Post by harpy Sun Feb 02, 2014 1:45 am

    I apologize for the mucked up title.  I was asking about the 6's.  Thanks for the pictures (gorgeous) they must be the Holy Grail of the Dynacos.  Were they offered as kits or were the all factory assembled?

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