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Thread: is it a 2123H or J

  1. #1
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    is it a 2123H or J

    I bought awhile back what was to be a pair 2123H 8ohm but after looking closer the cone is maked 66287 . 66287 is the J ? i put a ohm meter on it and it reads 4.8 ohms across the leads ? what do i have ?

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    Administrator Robh3606's Avatar
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    Rob
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    good

    Thanks Rob that makes my day complete

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    3134 3130 network

    i have been searching the forum for the 4430 and 4535 hf crossover diagram schematic replacing the 30ohm rheostat replaced with the 8ohm L pad does anyone who where its at ?

  5. #5
    Senior Member grumpy's Avatar
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    If you just pick the correct two terminals on an 8ohm L-pad, you'll have a variable resistor (low ohms to ~40ohms)

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    Yes, but it'll work the other way round (0 ohms when fully CCW, 40 ohms or even off when fully CW).

    In this thread I've shown how to modify a L-pad to work properly as a rheostat.

    Best regards!

  7. #7
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    Thanks Grumpy, leads 1 and 2 on L pad = 40 ohms fully clockwise 22 ohms at the 12 oclock position and 0 ohms fully counter clockwise , again thanks

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