Home › Forums › Electronics Restoration › Technical Literature for Mershon M814 wet condenser

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  • May 28, 2025 at 5:19 pm #34625
    briangriffin
    Forum Participant

    Looking for technical information on the Mershon condensers, in particular model M814 which is a 4-anode unit.
    Been checking old parts and radio magazines online, but no references to that specific number. Anyone have some Mershon literature that might list models and their capacitances?

    June 1, 2025 at 10:38 am #34631
    Michael Taylor
    CVRS Member

    I don’t know the accuracy, but there is a suggestion that the M814 is a four section of 8 microfarads (MFD or μF) each.

    Reference: <https://antiqueradios.com/forums/viewtopic.php?t=428756&gt;

    I don’t know the safe (working) voltage rating.

    June 6, 2025 at 3:34 pm #34650
    briangriffin
    Forum Participant

    Thanks for the reply, it is that “M” that puzzles me. I’ve been looking at lots of 1920s radio magazines that mention S (for single), T (for triple), D (for double), and even Q for 4-section. I’m guessing maybe “multi- value” might be the M category, as there were indeed some units of different values, which in this case would add up to 14 in total. I may just continue to use 4 capacitors at 2uf @450 and be safe.

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