Results 1 to 10 of 10

Capacitors

| Batteries, Capacitors, Heat Sinks
  1. #1
    afmedic279 started this thread.
    afmedic279's Avatar
    SMF Badges of Honor


    Member since
    Dec 2012
    Location
    New Jersey
    Posts
    142
    Thanks
    20
    Thanked 132 Times in 57 Posts

    Capacitors

    Hey so can some help me figure out if these are worth keeping, prices on them and if they are still good? I have about 20+ of the black ones, 30 of the silver oval ones and about 40-50 of the round ones.







    DSCF2135 by gary and Jess, on Flickr


    DSCF2136 by gary and Jess, on Flickr


    DSCF2137 by gary and Jess, on Flickr


  2. #2
    Phantoms001's Avatar
    SMF Badges of Honor



    Member since
    Mar 2012
    Location
    Indiana
    Posts
    557
    Thanks
    167
    Thanked 528 Times in 243 Posts
    The way you test if they are still good is to get a multimeter that measures capacitance and check the caps. If you have a meter that does not measure caps, capacitors can also be tested by using a meter set on ohms. You set the meter to read ohms and when you connect it to the capacitor you will see it ramp up and down as the capacitor charges and discharges.

  3. The Following 4 Users say Thank You for This Post by Phantoms001:


  4. #3
    Phantoms001's Avatar
    SMF Badges of Honor



    Member since
    Mar 2012
    Location
    Indiana
    Posts
    557
    Thanks
    167
    Thanked 528 Times in 243 Posts
    As far as value goes, it's hard to tell. What you have are not really common capacitors. It really would help if you knew what type of motor they were used with.

    From there, you could find a real value.

    Most of the time if you replaced a cap you are going to put in a new one and not a used one because they don't cost a whole lot and you wouldn't want the cap to fail again soon unless they are expensive.

    The second picture seems to sell on ebay...but they all may sell well. You just never know. I'm sure you could expose these to more potential purchasers if you knew what they were from. 1000 volts, 635 volts, are just uncommon, it's high voltage for a motor.

    Aerovox Capacitor 1000 Volt 13 MFD Oil Fill Capacitor No PCB Priced for 2 | eBay
    Last edited by Phantoms001; 01-07-2013 at 11:42 PM.

  5. #4
    SMF Badges of Honor


    Member since
    Nov 2010
    Location
    Indiana
    Posts
    274
    Thanks
    174
    Thanked 152 Times in 86 Posts
    Don't know if this help's but I just paid $10 for a new cap. 5 UF it was for a furnace blower motor. That was from a repair shop.

  6. #5
    jghilino's Avatar
    SMF Badges of Honor

    Buying Specialty Escrap of all kinds, resale grade computer parts

    Member since
    Sep 2012
    Location
    KANSAS CITY
    Posts
    2,671
    Thanks
    1,429
    Thanked 1,452 Times in 918 Posts
    here is one of them i was able to identify, none have sold though, im guessing you could put them on ebay and get $30 each but you might be sitting on them a very long time before they sell:

    Ronken 86C81136K50 Capacitor | eBay
    I buy and sell all types of scrap and escrap. I buy specialty and hard to sell escrap. I buy resale items. PM me or contact me at jghilino@hotmail.com
    I AM ACTIVELY BUYING ESCRAP OF ALL TYPES. BOARDS, RAM, CPUS AND MUCH MORE

  7. #6
    eesakiwi's Avatar
    SMF Badges of Honor



    Member since
    Dec 2010
    Location
    NZ
    Posts
    2,379
    Thanks
    2,468
    Thanked 2,318 Times in 1,134 Posts
    They use big capactors in car audio. 1 Farad or bigger.


  8. #7
    bcrepurposing's Avatar
    SMF Badges of Honor


    Member since
    Dec 2013
    Location
    Northern Central MN
    Posts
    152
    Thanks
    3
    Thanked 155 Times in 69 Posts

    Capacitors

    car audio caps are 12volt and normally function between 10.5-18 volts. amperage i am not sure of off the top of my head. 0.5 farad is the entry level size and 48 farad was the biggest i have seen made for car audio. the farad amount should match the output or be higher than the connected amp. 500 watts = 0.5 farad. 1800 watts = 1.8 farad or next closest (2 or 2.5 farad). i ran a 4.5 farad cap with only 2000 watts. i have also ran backwards and had a 0.5 farad on a 1000 watt amp and it simply is not enough to do its job so you are better off not using one at all as it chokes the voltage because it limits what can be drawn through.

    i will tell you this much; most car audio caps are not necessarily cheap but i will never put a cap not specifically made for car audio on an amp. the caps are much cheaper than an amp.

    a cheap cap is $15-25. they can cost a couple hundred dependant on size and brand.

    amps on the other hand are cheap at $40-100 and can cost thousands on high end.

    when wired, the cap runs between battery and amplifier. you tell me what is gonna be the first part to go...? my point is caps are too cheap to risk cooking an amp or any other part in the system. use the caps for what they are speced for not just random placement. you will ruin something pretty fast otherwise and maybe even start a fire.
    "Reuse, Repurpose, Recycle..." - BC Repurposing Motto

    www.bcrepurposing.weebly.com
    https://www.facebook.com/bc.repurposing

  9. The Following User Says Thank You to bcrepurposing for This Post:


  10. #8
    Mechanic688's Avatar
    SMF Badges of Honor



    Member since
    Mar 2011
    Location
    Warsaw , Ind. In the heart of the lakes, and down the street from the hotel where Al Capone stayed.
    Posts
    9,577
    Thanks
    11,247
    Thanked 10,699 Times in 4,721 Posts
    The cap is put in line to eliminate the "sagging" of the power line voltage. When the bass thumps hard it'll pull hard on the voltage and cause it to sag or go below 12/13 volt. The cap acts like a quick battery and gives a shot of juice in the line to bring the voltage back up and eliminate the sagging.

    A car audio power cap works by storing large amounts of electrical power which it can then deliver to power hungry components when called upon to do so. They have an advantage over typical lead acid storage batteries because they have very low internal resistance. This allows them to deliver large amounts of power (current) very quickly. Much faster than a car's charging system can deliver that same amount of current.
    Thanks to car audio online
    P & M Recycling - Specializing in E-Waste Recycling.
    If you enjoy your freedom, thank a vet.

  11. #9
    logansryche's Avatar
    SMF Badges of Honor


    Member since
    Sep 2014
    Location
    Galeville, NY
    Posts
    1,209
    Thanks
    1,041
    Thanked 560 Times in 365 Posts
    Correct me if I'm wrong, but those look like starter capacitors for furnaces and automation equipment, just enough of a tolerance to handle large voltage start-ups. I don't think they'd fair good in vehicle audio however. Coilcraft handed a bunch to me when I scrapped their equipment 8 or 9 years ago. Listed and sold em on craigslist. I don't see many with them unless you scrap houses and then you'll find em everywhere. Hope that helps.

    -Matt

  12. #10
    SMF Badges of Honor

    Member since
    Mar 2015
    Location
    albany
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Do you still have the 30 of the silver oval capacitors?



  13. Similar threads on the Scrap Metal Forum

    1. Tantalum capacitors - Who buys them?
      By waredu in forum General - Let's talk business
      Replies: 68
      Last Post: 07-22-2014, 04:44 PM
    2. who buys capacitors or are they worth anything
      By camdaddy in forum Batteries, Capacitors, Heat Sinks
      Replies: 3
      Last Post: 10-31-2012, 10:19 PM
    3. Hazards of capacitors
      By Ditchdigger in forum Scrap Metal Safety and Hazards
      Replies: 13
      Last Post: 09-24-2011, 01:58 AM
    4. So what about capacitors?
      By wtwolf13 in forum Batteries, Capacitors, Heat Sinks
      Replies: 2
      Last Post: 07-02-2011, 01:51 PM
    5. large capacitors
      By ilyaz in forum Batteries, Capacitors, Heat Sinks
      Replies: 4
      Last Post: 04-23-2011, 07:36 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

 
Browse the Most Recent Threads
On SMF In THIS CATEGORY.





OR

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

The Scrap Metal Forum

    The Scrap Metal Forum is the #1 scrap metal recycling community in the world. Here we talk about the scrap metal business, making money, where we connect with other scrappers, scrap yards and more.

SMF on Facebook and Twitter

Twitter Facebook