1. Win a Broadcaster or one of 3 Teles! The annual Supporting Member Giveaway is on. To enter Click Here. To see all the prizes and full details Click Here. To view the thread about the giveaway Click Here.

Shelf life for Polyester orange Drops?

Discussion in 'Shock Brother's DIY Amps' started by tubedood, Oct 8, 2020.

  1. tubedood

    tubedood Tele-Holic

    Age:
    55
    Posts:
    522
    Joined:
    Sep 25, 2018
    Location:
    Orlando
    Hi again folks,
    I have a few dozen unused 6PS orange drops in values that are good for guitar amp builds. They test pretty spot on for the capacitance value but they are probably 12 or so years old at least.

    I don't mind buying new caps, just curious on others experience with these capacitors and if I can use 'em or if they tend to get leaky or break down.

    As always think you for your time and wisdom!
     
  2. Dan_Pomykalski

    Dan_Pomykalski Tele-Meister

    Age:
    30
    Posts:
    313
    Joined:
    May 16, 2019
    Location:
    Madison, WI
    I don’t know if I’ve ever heard of film caps like Orange Drops going bad under normal circumstances? I’m pretty sure it’s usually the paper in oil or electrolytics that need to be replaced.
     
    tubedood likes this.
  3. Engine Swap

    Engine Swap Tele-Afflicted

    Posts:
    1,105
    Joined:
    Nov 28, 2014
    Location:
    Chicago
    They have a 10% tolerance - do they measure outside of that? What device are you using to measure them?
     
  4. tubedood

    tubedood Tele-Holic

    Age:
    55
    Posts:
    522
    Joined:
    Sep 25, 2018
    Location:
    Orlando
    The caps are unused, still in my parts drawers. I could only measure the capacitance value with my fluke dmm. They measure great as far as the values. I don't have a leakage tester.

    Thanks for any info!
     
  5. Lowerleftcoast

    Lowerleftcoast Friend of Leo's

    Posts:
    2,660
    Joined:
    Dec 30, 2019
    Location:
    california
    If they are NOS condition they will be good for maybe 100 years or so.

    The oldest orange drops are about 60 years old now. I would still use them.

    Damage of the orange casing would lead to problems. Other than that just use them.
     
    Big-ez, aging_rocker and tubedood like this.
  6. Peegoo

    Peegoo Poster Extraordinaire

    Posts:
    6,561
    Joined:
    Oct 11, 2019
    Location:
    Between the Raindrops
    They don't go bad in storage unless you're storing them in an oven where they get past about 200F ;)
     
    tubedood and aging_rocker like this.
  7. printer2

    printer2 Poster Extraordinaire

    Posts:
    6,979
    Joined:
    May 24, 2010
    Location:
    Canada
    They will outlive you.
     
  8. Paul G.

    Paul G. Friend of Leo's

    Posts:
    3,490
    Joined:
    Mar 17, 2003
    Location:
    Rhode Island
    The reason electrolytic caps have a shelf life is because there is a paper insulator is soaked with a liquid electrolyte. The liquid can leak or dry out and paper is paper. The reason paper in oil caps have a shelf life is because the paper insulator is soaked in oil. The oil can leak or break down and paper is paper. Orange drops have an insulator made of polyester which will be unchanged long after all life on earth is gone.
     
    tubedood and MLHull like this.
IMPORTANT: Treat everyone here with respect, no matter how difficult!
No sex, drug, political, religion or hate discussion permitted here.