Marstan Jmp 1202 118 Volatge?

Discussion in 'Building the Classics' started by stickyfinger, May 26, 2018.

  1. stickyfinger

    stickyfinger Active Member

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    Any one know what these typically put out on the plates? Bias will affect the plate voltage but I typically get 425-428 with Merren at 120v 60%. Ive heard 440v but hoping its lower.

    I'm thinking about switching to his power transformers. Every Merren Ive used the solder lugs are always sticking way to far off the transformer that I have to rout the chassis just to install it.

    Heyboer lugs are closer to the width of the transformer from what I remember.
    Anyone confirm and did it drop straight in a Valestorm chassis with out any elbow grease?
     
  2. neikeel

    neikeel Well-Known Member

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    The Marstran drops straight in. I always use the aluminium ring too (they need a wriggle to put on) as they finish the installation nicely.
    Voltages on the hi pairing will be 420-430v so close to stock and Merren values. IIRC his LV option is 370v once rectified.
    Doesn't the Merren come with LV option too?
     
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  3. stickyfinger

    stickyfinger Active Member

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    Don't think so Neil. His are supposed to be accurate to originals but he also does not supply wiring diagrams for his transformers.

    Looking closely at the Merren power im surprised the Lugs cant be arranged like the originals with two soldertabs per lug moved in closer like the originals. Looks like he cuts half the lug off and puts on the final wrap over it if that makes any sense. But in my case make installation a PITA
     

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