UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Components and Circuits

Notices

Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

Reply
 
Thread Tools
Old 13th Jan 2018, 8:48 pm   #1
IanNVJ35
Heptode
 
IanNVJ35's Avatar
 
Join Date: Mar 2010
Location: Hemel Hempstead, Hertfordshire, UK.
Posts: 748
Default What component type / value is this?

Just been doing some fault finding and this Tesla brown item looks cracked so will be replacing it hopefully. Its marked:

TC 181 MP
M33
160V = JY

Does any of that make sense? I was thinking it was a capacitor but don't see a value. Thanks for any help.
Attached Thumbnails
Click image for larger version

Name:	20180113_194048.jpg
Views:	255
Size:	92.2 KB
ID:	155421  
IanNVJ35 is offline   Reply With Quote
Old 13th Jan 2018, 8:51 pm   #2
kellys_eye
Heptode
 
Join Date: Jan 2014
Location: Oban, Scotland, UK.
Posts: 530
Default Re: What component type / value is this?

0.33uF 160V to me..... any one confirm?
kellys_eye is offline   Reply With Quote
Old 13th Jan 2018, 9:09 pm   #3
HamishBoxer
Dekatron
 
HamishBoxer's Avatar
 
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 5,800
Default Re: What component type / value is this?

Safe bet to me.
__________________
G8JET BVWS Member and V.M.A.R.S
HamishBoxer is offline   Reply With Quote
Old 13th Jan 2018, 9:48 pm   #4
IanNVJ35
Heptode
 
IanNVJ35's Avatar
 
Join Date: Mar 2010
Location: Hemel Hempstead, Hertfordshire, UK.
Posts: 748
Default Re: What component type / value is this?

Thank you both kindly. I would never have worked that one out! The other one was a 50uF axial - a rare value for sure.
IanNVJ35 is offline   Reply With Quote
Old 13th Jan 2018, 10:43 pm   #5
'LIVEWIRE?'
Dekatron
 
'LIVEWIRE?''s Avatar
 
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 5,858
Default Re: What component type / value is this?

47uf can be used to replace 50uf without any problems, btw.
'LIVEWIRE?' is offline   Reply With Quote
Old 13th Jan 2018, 11:01 pm   #6
GrimJosef
Octode
 
Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 1,971
Default Re: What component type / value is this?

Quote:
Originally Posted by IanNVJ35 View Post
... The other one was a 50uF axial - a rare value for sure.
They're only rare over here. They're off-the-shelf in the USA http://uk.farnell.com/vishay/tva1512...tor/dp/1199627. In fact RS list them at lower voltages but if you need >150V they don't seem to have those in the catalogue.

Cheers,

GJ
__________________
http://www.ampregen.com
GrimJosef is offline   Reply With Quote
Old 13th Jan 2018, 11:53 pm   #7
IanNVJ35
Heptode
 
IanNVJ35's Avatar
 
Join Date: Mar 2010
Location: Hemel Hempstead, Hertfordshire, UK.
Posts: 748
Default Re: What component type / value is this?

For the 50uF I have either 47 (measures 45) or 56 (measures 53.5). I suppose either would do and the original was only 12 Volt rated so not a high stress application.

I have found that even the 10nF ones have dried out so its a blanket replacement job. Good job that there is only 8. Got all the others on order now so hopefully an easy fix.
IanNVJ35 is offline   Reply With Quote
Old 14th Jan 2018, 12:30 am   #8
turretslug
Nonode
 
Join Date: Nov 2011
Location: Surrey, UK.
Posts: 2,328
Default Re: What component type / value is this?

That Tesla cap is very reminiscent of crumbly brown 'orrible Hunts that abound in '50s/early '60s kit. I expect that every nation has its own particular MCC (Most Cursed Capacitor).
turretslug is offline   Reply With Quote
Old 14th Jan 2018, 1:07 pm   #9
camtechman
Nonode
 
camtechman's Avatar
 
Join Date: Jan 2008
Location: Milton Keynes, Bucks. UK.
Posts: 2,362
Default Re: What component type / value is this?

Out of curiosity. does that cap have Chinese symbols? Or is it my eyes
__________________
When I die, please don't let my Wife sell my collection for the amount I told her I paid for it!
camtechman is offline   Reply With Quote
Old 14th Jan 2018, 1:50 pm   #10
Boater Sam
Dekatron
 
Boater Sam's Avatar
 
Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,179
Default Re: What component type / value is this?

No, it says "TESLA"
__________________
Boater Sam.
BVWS Member
Boater Sam is offline   Reply With Quote
Old 14th Jan 2018, 2:39 pm   #11
60 oldjohn
Nonode
 
Join Date: Dec 2004
Location: East Yorkshire, UK.
Posts: 2,109
Default Re: What component type / value is this?

Quote:
Originally Posted by camtechman View Post
Out of curiosity. does that cap have Chinese symbols? Or is it my eyes
I had to look twice.

John.
60 oldjohn is offline   Reply With Quote
Old 14th Jan 2018, 3:27 pm   #12
Station X
Moderator
 
Station X's Avatar
 
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 13,397
Default Re: What component type / value is this?

What's the equipment it's fitted in?
__________________
Graham. Forum Moderator

Keep the soldering iron hot.
Station X is offline   Reply With Quote
Old 14th Jan 2018, 3:46 pm   #13
G6Tanuki
Dekatron
 
G6Tanuki's Avatar
 
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 6,023
Default Re: What component type / value is this?

Quote:
Originally Posted by IanNVJ35 View Post
For the 50uF I have either 47 (measures 45) or 56 (measures 53.5). I suppose either would do and the original was only 12 Volt rated so not a high stress application.
Yes, remember that by virtue of the way they work, electrolytics always have a wide tolerance [something like +/- 20% being typical] so you don't need to fret about getting an exact replacement - anything between 40 and 70 uF will do provided it's got an adequate voltage-rating.
G6Tanuki is offline   Reply With Quote
Old 14th Jan 2018, 5:43 pm   #14
IanNVJ35
Heptode
 
IanNVJ35's Avatar
 
Join Date: Mar 2010
Location: Hemel Hempstead, Hertfordshire, UK.
Posts: 748
Default Re: What component type / value is this?

Quote:
Originally Posted by Station X View Post
What's the equipment it's fitted in?
It's in a vintage engine revolutions counter - made by PAL of Czechoslovakia. It wildly over reads so I am having a go at repairing it. It's very 1960's in its build and electronics even though it was made in the 1980's.
IanNVJ35 is offline   Reply With Quote
Old 23rd Jan 2018, 10:45 pm   #15
IanNVJ35
Heptode
 
IanNVJ35's Avatar
 
Join Date: Mar 2010
Location: Hemel Hempstead, Hertfordshire, UK.
Posts: 748
Default Re: What component type / value is this?

Just to wrap up I fitted all the new components and now the unit functions perfectly - thanks to all who helped me. And to disperse any doubts that it was 330nF I opened up a second faulty unit that I am fixing and in that one its clearly marked 330n.
IanNVJ35 is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 7:19 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright ©2002 - 2018, Paul Stenning.