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 > Specific Vintage Equipment > Vintage Radio (domestic)

Notices

Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only.

Reply
 
Thread Tools
Old 1st Aug 2018, 11:36 am   #1
Northyorks1
Triode
 
Join Date: Mar 2018
Location: Saltburn, North Yorkshire, UK.
Posts: 38
Default Replacement capacitor

Hello, Can anyone please advise on a replacement capacitor. Pictured below it is a 50pf 1000v taken from a Telefunken Jubilate S export. Also does anyone know where I can get a service sheet for this model.

Thanks Ian
Attached Thumbnails
Click image for larger version

Name:	IMG_20180801_111300652.jpg
Views:	166
Size:	81.4 KB
ID:	166863  
Northyorks1 is offline   Reply With Quote
Old 1st Aug 2018, 12:03 pm   #2
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 6,904
Default Re: Replacement capacitor

If it's the mains antenna one then personally I would leave it out of circuit but if you were to insist then a 50pF in series with a Y Class perhaps?

Not sure about an export one but supposedly the "Jubilate S" schematic is here if that's any help:

https://nvhrbiblio.nl/schema/Telefunken_Jubilate55.pdf

Lawrence.
ms660 is offline   Reply With Quote
Old 1st Aug 2018, 12:04 pm   #3
boxdoctor
Heptode
 
boxdoctor's Avatar
 
Join Date: Sep 2010
Location: Ripley, Derbyshire, UK.
Posts: 583
Default Re: Replacement capacitor

You will find your model here, I think. http://www.opweb.de/en/index.php
There seems to be several versions. If you do a site search, several come up.
Regards, tony.
__________________
The job "couldn't be done".
He didn't know that,
So he did it.
boxdoctor is offline   Reply With Quote
Old 1st Aug 2018, 2:48 pm   #4
Northyorks1
Triode
 
Join Date: Mar 2018
Location: Saltburn, North Yorkshire, UK.
Posts: 38
Default Re: Replacement capacitor

Thanks for your help Lawrence and Tony. Jubilate s was on site you recommended Lawrence but would not download. As for capacitor I am not sure which one it is, but is connected between base of volume switch then to a tag with a fuse on it. Sorry for limited knowledge as I am very new to this and a novice. Ok mechanically but no electrical experience, so just thumbling through at the moment. Pics below of capacitor connections.

Ian
Attached Thumbnails
Click image for larger version

Name:	highlight 1.jpg
Views:	98
Size:	64.7 KB
ID:	166870   Click image for larger version

Name:	highlight 2.jpg
Views:	101
Size:	61.7 KB
ID:	166871  
Northyorks1 is offline   Reply With Quote
Old 1st Aug 2018, 3:19 pm   #5
Station X
Moderator
 
Station X's Avatar
 
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 13,791
Default Re: Replacement capacitor

Why did you decide to change this capacitor?
__________________
Graham. Forum Moderator

Keep the soldering iron hot.
Station X is offline   Reply With Quote
Old 1st Aug 2018, 3:37 pm   #6
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 6,904
Default Re: Replacement capacitor

I've just tried the link I posted earlier, it downloads ok for me.

Looked at various Jubilate schematics, can't find any with a 50pf capacitor connected according to your description, the only one that connects to the on/off switch I can find is the 50pF that connects between the non-fused side of the on/off switch (the voltage selector side of the switch) and the VHF antenna panel via a red wire so far as I can make out.

I think maybe the fuse tag you identified in the photo as the tag the 50pF was connected to is only connected to a white wire that goes to the mains transformer, can you confirm?

Lawrence.
ms660 is offline   Reply With Quote
Old 1st Aug 2018, 4:54 pm   #7
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 6,904
Default Re: Replacement capacitor

Annotated thumbnail picture ('scuse scrawl) of a scanned copy schematic from the link posted earlier showing the capacitor I was on about, the metal tag that's highlighted can be swung either way to make contact with either of the vhf antenna dipole sockets.

Lawrence.
Attached Thumbnails
Click image for larger version

Name:	telefunken jubilate s.jpg
Views:	64
Size:	58.0 KB
ID:	166881  

Last edited by ms660; 1st Aug 2018 at 5:12 pm. Reason: clarification
ms660 is offline   Reply With Quote
Old 1st Aug 2018, 5:00 pm   #8
Northyorks1
Triode
 
Join Date: Mar 2018
Location: Saltburn, North Yorkshire, UK.
Posts: 38
Default Re: Replacement capacitor

I removed capacitor as it was crumbling on the ends, so thought it best to remove. Right decision I dont know. Regarding wires Lawrence I have added more photos to try and make it clearer, to me more than you I think.

Photo 1 The black wire for capacitor, which also has a red wire which you mentioned connected to the same tag and runs to the antenna panel shown in photo 2. Also the white wire you mentioned which is on the first tag and runs to the mains transformer shown in photo 3. And a yellow wire on tag 3 which is the coiled wire in photo 4. Hope this helps. Got work to do so wont be back online for a few hours.
Attached Thumbnails
Click image for larger version

Name:	1.jpg
Views:	87
Size:	66.9 KB
ID:	166882   Click image for larger version

Name:	2-2.jpg
Views:	83
Size:	73.2 KB
ID:	166883   Click image for larger version

Name:	3.jpg
Views:	75
Size:	110.8 KB
ID:	166884   Click image for larger version

Name:	4.jpg
Views:	74
Size:	61.2 KB
ID:	166885  
Northyorks1 is offline   Reply With Quote
Old 2nd Aug 2018, 10:55 am   #9
G8HQP Dave
Dekatron
 
Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,446
Default Re: Replacement capacitor

Is that capacitor enabling the mains lead to act as a VHF antenna?
G8HQP Dave is offline   Reply With Quote
Old 2nd Aug 2018, 11:14 am   #10
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 6,904
Default Re: Replacement capacitor

Netzantenne.

Lawrence.
ms660 is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 8:23 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.