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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


5 posters

    new PH16 phono preamp build

    Roy Mottram
    Roy Mottram
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    Posts : 1839
    Join date : 2008-11-30

    new PH16 phono preamp build Empty new PH16 phono preamp build

    Post by Roy Mottram Wed Jul 10, 2013 11:17 pm

    check out the photos and build commentary here:  PH16 build

    new PH16 phono preamp build PH16-115s
    arledgsc
    arledgsc


    Posts : 503
    Join date : 2012-11-30

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    Post by arledgsc Thu Jul 11, 2013 10:39 am

    I love it Nice work! The price is right at $695 for the kit version.
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    turbotoy


    Posts : 48
    Join date : 2012-04-15

    new PH16 phono preamp build Empty Re: new PH16 phono preamp build

    Post by turbotoy Sat Jul 13, 2013 9:03 pm

    Nice to see another one going together Roy. I like the new power supply board! When I built mine I evaluated both the 155J choke and just the 1k resistor. The difference after the regulators wasn't measurable on my scope. Might as well omit the choke and get rid of another source of noise in the chassis.

    For those with a low output MC cartridge, I highly recommend giving this phono stage a listen. If you dont have a low output MC cartridge, you should experience one anyway Wink. I've been spinning vinyl noticeably more since I built mine, which is usually my best way to gauge how I like a design.
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    nufude


    Posts : 1
    Join date : 2012-12-30

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    Post by nufude Sun Jul 14, 2013 1:03 pm

    Roy will be putting a PH16 together for me as well.  I ordered mine with the 16" chassis so I could stack one of Roy's PH14 octal line-stage preamps on top, being nice equipment stands are hard to find overseas.  I'll get back to you once I receive my new PH16.  I can assure you I won't be disappointed:)
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    svirant


    Posts : 3
    Join date : 2013-03-25

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    Post by svirant Thu Jul 18, 2013 12:28 am

    Just finished mine tonight! wowowow!! I love it.

    new PH16 phono preamp build Aa2qzB7
    new PH16 phono preamp build K34xWCu
    Roy Mottram
    Roy Mottram
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    Posts : 1839
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    Post by Roy Mottram Thu Jul 18, 2013 12:15 pm

    very nice!!! ENJOY !!
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    Guest
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    Post by Guest Sun Jun 15, 2014 8:07 pm

    I've always enjoyed phono stages with volume controls. There aren't that many out there since most people don't have a phono only system, which I have. Is there any way this kit could be configured with one and run it straight into a ST-35?
    Roy Mottram
    Roy Mottram
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    Posts : 1839
    Join date : 2008-11-30

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    Post by Roy Mottram Mon Jun 16, 2014 1:25 pm

    sure, just add a volume control !
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    Guest
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    Post by Guest Mon Jun 16, 2014 7:54 pm

    So, no additional gain required that a traditional preamp provides? Sounds good.
    Roy Mottram
    Roy Mottram
    Admin


    Posts : 1839
    Join date : 2008-11-30

    new PH16 phono preamp build Empty Re: new PH16 phono preamp build

    Post by Roy Mottram Mon Jun 16, 2014 9:06 pm

    you should be fine, depending on your cartridge, standard spec is 5mv output with MM, a standard phono board would have 40db gain,
    the PH16 low gain version has about 46db gain, a standard line preamp has 10-14db gain.
    PM or email me for any particular questions, thanks

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