Help identifying and sourcing Sony TC399 VU Meter bulbs.

Discussion in 'Tape' started by Mark1892, Apr 16, 2018.

  1. Mark1892

    Mark1892 New Member

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    Hi, a friend has asked if I could have a look at his Sony TC399 as one of the VU Meters wasn't illuminated. Once stripped down it was apparent the bulb has been removed. Manual states 6v 35ma bulb which when looking at the one in the other meter, it is a push in fuse link type. I am struggling to find a replacement online, can anyone help? [​IMG]
     

     

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  2. Mark1892

    Mark1892 New Member

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  3. dhnash

    dhnash Active Member

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    Location:
    Wildwood, MO
    Last edited: Apr 16, 2018
  4. Mark1892

    Mark1892 New Member

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    Thanks dhnash. Not being mine I'd prefer to keep it original and not solder lamps in but looks like it might be mine and his only option. Found these on UK Ebay, still be suitable? I'll have to replace the one working lamp aswell to keep the light levels the same too. Screenshot_20180417-102345.png
     
  5. dhnash

    dhnash Active Member

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    491
    Location:
    Wildwood, MO
    The ones you found appear to be very similar the ones I suggested (same electrical specifications and only a 1mm difference in length) so I believe they should work for you.
     
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  6. Mark1892

    Mark1892 New Member

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    Thanks I'll get 2 ordered.
     

     

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  7. Mark1892

    Mark1892 New Member

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    Just found these, what difference would I experience using something with a 0.25a rating instead of 0.05a? A no go or acceptable? Screenshot_20180420-144354.png
     
  8. dhnash

    dhnash Active Member

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    491
    Location:
    Wildwood, MO
    There are at least two possible issues with using 0.25A versus 0.05A lamps:

    1. The significantly higher current draw may be more than the transformer can safely supply.

    2. The heat generated by the higher wattage lamps may be so much that it could could damage the plastic parts of the VU meters.
     
  9. Mark1892

    Mark1892 New Member

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    Perfectly answered, I'll stick with your original suggestion. Many thanks
     
  10. Mark1892

    Mark1892 New Member

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    All sorted. Just replaced the right hand side vu bulb with the one above from ebay and it's not too different from the original in the left. Cheers dhnash. 20180429_191309.jpg
     
  11. dhnash

    dhnash Active Member

    Messages:
    491
    Location:
    Wildwood, MO
    Glad to hear that things worked out well!
     

     

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