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    Use SDS Labs PASCapboard w/ VTA's PAS3-Z upgrade Kit

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    pwsnyder

    Posts: 11
    Join date: 2010-08-09
    Age: 66
    Location: Flossmoor, Illinois USA

    Use SDS Labs PASCapboard w/ VTA's PAS3-Z upgrade Kit

    Post by pwsnyder on Tue Sep 07, 2010 11:32 pm

    I've purchased Roy Mottram's (VTA's) PAS3-Z kit for use with my Dyna Pas3 chassis and PS211 transformer. I want to use the SDS PasCapboard II supply board/kit (filament rectifiers on-board, larger diameter caps. possible and easy switch from solid state to tube rectifier input) to work with VTA's circuit. However, I lack the engineering background to calculate resistor values/wattages to deliver the required 320 volts to the PC-5Z and PC-6Z boards. The SDS board kit arrived with resistor values for the different B+ voltages required by the original PAS3 boards. Can anyone help me? (I would have provided/attached the schematics for the SDS and VTA boards - but I haven't figure out a way to do that.) Thanks everyone.

    Pete

    tubes4hifi
    Admin

    Posts: 965
    Join date: 2008-11-30

    Re: Use SDS Labs PASCapboard w/ VTA's PAS3-Z upgrade Kit

    Post by tubes4hifi on Tue Sep 14, 2010 12:43 am

    why would you want to add the SDS power supply when the PAS3-Z kit already comes with a power supply? The boards are nearly similar . . .
    Doing the calcs is easy, send me an email so I can try to figure out why you need two similar power supplys
    info@tubes4hifi.com www.tubes4hifi.com

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