Capacitor value? - UK Vintage Radio Repair and Restoration Discussion Forum

technotel · 9th Jan 2022, 4:06 pm

Hi Guys
Can you tell me how to read the value of capacitor attached? These I believe were used in a lot of Philips tv radio sets in the 80's
Many thanks
technotel

ms660 · 9th Jan 2022, 4:21 pm

https://www.elprocus.com/capacitor-color-code/

Eg: The 1st one in your photo:

100,000pF (0.1uF)

+- 20%

100VDC max. working voltage.

Lawrence.

mole42uk · 9th Jan 2022, 4:31 pm

https://www.electronics-tutorials.ws...tor/cap_5.html

Mrs. Google is your friend

David G4EBT · 9th Jan 2022, 4:33 pm

Mullard C280 range - commonly known as 'tropical fish'.

You'll find the colour code chart here, which explains how to determine the capacitance, the tolerance and the working voltage:

https://www.elprocus.com/capacitor-color-code/

They're not normally troublesome unless the leads break off at the ends if under mechanical stress.

Hope that helps.

Silicon · 9th Jan 2022, 5:41 pm

The holes in the PCB seem to be too far apart.

That may put a mechanical stress on the capacitor and any future replacements.

Jolly 7 · 9th Jan 2022, 5:54 pm

There appears to be a crack on the right hand side of the first tropical fish capacitor in the photo.

Kentode · 9th Jan 2022, 9:54 pm

There's a huge chunk missing from the right hand one!

technotel · 10th Jan 2022, 11:29 am

Thanks guys for all your great comments and tips and links. Learned alot about these caps. Yes several have cracked and bits come away. I will replace them now I know how to value them.
regards all
technotel

9th Jan 2022, 4:06 pm	#1
technotel Pentode Join Date: May 2018 Location: High Wycombe, Buckinghamshire, UK. Posts: 135	Capacitor value? Hi Guys Can you tell me how to read the value of capacitor attached? These I believe were used in a lot of Philips tv radio sets in the 80's Many thanks technotel Attached Thumbnails

9th Jan 2022, 4:21 pm	#2
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: capacitor https://www.elprocus.com/capacitor-color-code/ Eg: The 1st one in your photo: 100,000pF (0.1uF) +- 20% 100VDC max. working voltage. Lawrence. Last edited by ms660; 9th Jan 2022 at 4:38 pm. Reason: whoops.

9th Jan 2022, 4:31 pm	#3
mole42uk Nonode Join Date: Aug 2010 Location: Resolven, Wales; and Bristol, England Posts: 2,614	Re: capacitor https://www.electronics-tutorials.ws...tor/cap_5.html Mrs. Google is your friend __________________ Richard Index: recursive loop: see recursive loop

9th Jan 2022, 4:33 pm	#4
David G4EBT Dekatron Join Date: Feb 2003 Location: Cottingham, East Yorkshire, UK. Posts: 5,768	Re: capacitor Mullard C280 range - commonly known as 'tropical fish'. You'll find the colour code chart here, which explains how to determine the capacitance, the tolerance and the working voltage: https://www.elprocus.com/capacitor-color-code/ They're not normally troublesome unless the leads break off at the ends if under mechanical stress. Hope that helps. __________________ David. BVWS Member. G-QRP Club member 1339.

9th Jan 2022, 5:41 pm	#5
Silicon Nonode Join Date: Jun 2007 Location: Coulsdon, London, UK. Posts: 2,171	Re: Capacitor value? The holes in the PCB seem to be too far apart. That may put a mechanical stress on the capacitor and any future replacements.

9th Jan 2022, 5:54 pm	#6
Jolly 7 Octode Join Date: Feb 2018 Location: Southampton, Hampshire, UK. Posts: 1,063	Re: Capacitor value? There appears to be a crack on the right hand side of the first tropical fish capacitor in the photo.

9th Jan 2022, 9:54 pm	#7
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,303	Re: Capacitor value? There's a huge chunk missing from the right hand one! __________________ Regards, Ken. BVWS member Last edited by Kentode; 9th Jan 2022 at 9:54 pm. Reason: Typo

10th Jan 2022, 11:29 am	#8
technotel Pentode Join Date: May 2018 Location: High Wycombe, Buckinghamshire, UK. Posts: 135	Re: Capacitor value? Thanks guys for all your great comments and tips and links. Learned alot about these caps. Yes several have cracked and bits come away. I will replace them now I know how to value them. regards all technotel