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


2 posters

    dynaco pas z-mod worries

    darkar3796
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    darkar3796


    Posts : 2
    Join date : 2015-12-26
    • Post n°1

    dynaco pas z-mod worries Empty dynaco pas z-mod worries

    Post by darkar3796 Wed Jan 06, 2016 11:05 am

    I just gradually powered-on a recently completed z-modded dynaco pas 2 preamp (pc5, 6 and power supply). I am hearing little popping sounds that has me worried components are overheating. Tubes look fine but the transformer seems to be running a bit hot. The preamp operated OK before the mod.
    Thanks for any advice.
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    Roy Mottram
    Roy Mottram
    Roy Mottram
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    Posts : 1839
    Join date : 2008-11-30
    • Post n°2

    dynaco pas z-mod worries Empty Re: dynaco pas z-mod worries

    Post by Roy Mottram Wed Jan 06, 2016 2:03 pm

    which power supply did you use? How many tubes are you running between the two boards?
    you should contact your supplier directly about this . . . . support@tubenirvana.net
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    darkar3796
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    darkar3796


    Posts : 2
    Join date : 2015-12-26
    • Post n°3

    dynaco pas z-mod worries Empty Re: dynaco pas z-mod worries

    Post by darkar3796 Wed Jan 06, 2016 2:35 pm

    Thanks for letting me know about Tube Nirvana support-- I'll check-in with them.
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    • Post n°4

    dynaco pas z-mod worries Empty Re: dynaco pas z-mod worries

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