Transformer specs

Discussion in 'Ham Radio Discussions' started by K5OMC, Oct 10, 2021.

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  1. K5OMC

    K5OMC Ham Member QRZ Page

    Can anyone tell me the specs of this transformer?

    Thanks for all thoughts and replies.

    Mike

    K5OMC EM44
     

    Attached Files:

    KA4DPO likes this.
  2. K6BSU

    K6BSU Ham Member QRZ Page

    Without any manufacturer's name or part number, you will have to run some tests. Try to draw a schematic based on the colored wires and an Ohmmeter test. Apply primary 120 VAC (usually the black wires). Measure voltages on all other wires. You can approximate power levels by the weight of the iron, or you can get a resistive load bank and check load current and voltage drop under load. This will get you the internal resistance of windings. This will indicate maximum current capacity of each winding.
     
    WZ7U likes this.
  3. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    I think it's your standard C801441-1 transformer.:)
     
    W9WQA and K8BZ like this.
  4. KP4SX

    KP4SX Premium Subscriber QRZ Page

    Made in 1979. Week 41.
     
  5. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Then, it's old enough to vote.
     
  6. WN1MB

    WN1MB Ham Member QRZ Page

    But doesn't appear to be tall enough to safely ride the roller coaster.

    Might be Berkshire Transformer Corporation iron.
     
    Last edited: Oct 11, 2021
    N5AL likes this.
  7. KP4SX

    KP4SX Premium Subscriber QRZ Page

    There's no such thing as a stupid question.:rolleyes:
     
    KA4DPO likes this.
  8. K4NWD

    K4NWD Platinum Subscriber Platinum Subscriber QRZ Page

    Challenge accepted.

    Why are there always, and I mean always, arguments within every thread here?

    Ok, back to the transformer question.
     
    VK6APZ, W9WQA and WZ7U like this.
  9. KL7AJ

    KL7AJ Ham Member QRZ Page

    One useful rule of thumb about standard laminate transformers: The power handling capacity is about 25 watts per cubic inch of iron.
     
  10. K1LKP

    K1LKP Platinum Subscriber Platinum Subscriber QRZ Page

    KEN,

    IT IS BECZ WE ALL LIKE EACH OTHER.

    PLEASE DON'T UPSET THE APPLECART.

    73 ES KEEP HAPPY.jpg


     

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