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    MK3 build photos

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    tubes4hifi
    Admin

    Posts : 1292
    Join date : 2008-11-30

    MK3 build photos

    Post by tubes4hifi on Mon Oct 13, 2014 10:08 pm

    it's been awhile since I've seen much info on the MK3 amps, I built a couple of them last week for a customer with the VTA octal driver board,
    here's some photos of the two builds . . .

    . .























    this final photo shows the bias on each tube (50ma), and the B+ voltage at 455vdc

    PeterCapo

    Posts : 386
    Join date : 2008-12-05

    Re: MK3 build photos

    Post by PeterCapo on Mon Oct 13, 2014 10:41 pm

    Really nice.

    Guest
    Guest

    Re: MK3 build photos

    Post by Guest on Mon Oct 13, 2014 11:05 pm

    'tis a beautiful thing!! cheers

    Maintarget

    Posts : 209
    Join date : 2013-02-10

    Re: MK3 build photos

    Post by Maintarget on Tue Oct 14, 2014 10:09 pm

    Are those coupling caps Russian PIO covered in black shrink tube or "Black beauties" LOL

    tubes4hifi
    Admin

    Posts : 1292
    Join date : 2008-11-30

    Re: MK3 build photos

    Post by tubes4hifi on Wed Oct 15, 2014 11:16 am

    black heat shrink on Russian K40-Y PIOs

    Dingojazz

    Posts : 39
    Join date : 2010-09-03

    Mk IIIs

    Post by Dingojazz on Tue Nov 04, 2014 7:22 pm

    Love my VTA Mk IIIs with octal drivers.  
    Fun amps!  Very Happy

    K.

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    Re: MK3 build photos

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