element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet & Tria Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • About Us
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      • Japan
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Vietnam
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Experts, Learning and Guidance
  • Technologies
  • More
Experts, Learning and Guidance
Ask an Expert Forum oil filled cap
  • Blog
  • Forum
  • Documents
  • Leaderboard
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Experts, Learning and Guidance to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Not Answered
  • Replies 10 replies
  • Subscribers 300 subscribers
  • Views 1358 views
  • Users 0 members are here
Related
See a helpful answer?

Be sure to click 'more' and select 'suggest as answer'!

If you're the thread creator, be sure to click 'more' then 'Verify as Answer'!

oil filled cap

acdc90
acdc90 over 2 years ago

Hello

i Love my job as every day is different

Today i was looking at a 5gallon ultrasonic Bath 

 this is only the 2nd time it has been repaired since

made in America in 1982

they kept making upto early 2000.   yes good old stuff just keeps going 

this has 4 of 811a transmitting Valves in it 

anyway the cap that i need to replace is made by General electric 

0.25MUF 2000v     CP70E1EJ254V    CAT 22F191G2

AND  oil filled  so can not be exported 

i do not know the characteristic's of oil filled caps .   Can someone say what is better to put in 

strange circuit  this cap is after the choke from the high voltage transformer (over 1000v AC) "NO rectifier "

if i find the circuit i will put it up  (probably on 30 parts in circuit)  

FROM this cap supplies "dirty DC" voltage to Tank coil to plate of valve

the grey cap i want to replace is under the choke on the left  

image

 

  • Sign in to reply
  • Cancel

Top Replies

  • colporteur
    colporteur over 2 years ago +1
    Some oil can capacitors contained PCB's that were carcinogenic. Take care if you are disposing of them.
  • michaelkellett
    michaelkellett over 2 years ago in reply to anniel747 +1
    You're right. 0.25uF @ 2000V is more credible. https://www.tedss.com/CP72E1EJ254K1 But why does it say 0.25MUF - some capacitors are marked MU for mu as in micro. MK
  • misaz
    misaz over 2 years ago in reply to michaelkellett +1
    I am not expert on old tech, but I found that M maybe mean tolerance +-20%. Source: https://electronics.stackexchange.com/questions/464076/old-capacitor-markings-m-letter-actual-capacitance
Parents
  • dang74
    0 dang74 over 2 years ago

    Those valves look amazing 

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
Reply
  • dang74
    0 dang74 over 2 years ago

    Those valves look amazing 

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube