UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV 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 29th Jul 2021, 6:56 pm   #1
bobhowe
Heptode
 
bobhowe's Avatar
 
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 602
Default BEC Capacitors

Moderators if in the wrong section please move it Hi i see Bush used 32/16 MFD BEC Capacitor in there DAC90 Radios how long would it have been after the capacitor had the date written on it for it been installed to a radio
bobhowe is offline   Reply With Quote
Old 29th Jul 2021, 7:25 pm   #2
Radio Wrangler
Moderator
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 18,547
Default Re: BEC Capacitors

There is no way of knowing. It depends on whether they operated a careful stores policy of keeping batches together and using oldest first. If they just tipped new arrivals loose into a bin, old ones could hide in bottom corners for some appreciable time.

Not all capacitors will have been bought from the same makers, not all will be date-stamped.

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is online now   Reply With Quote
Old 29th Jul 2021, 7:41 pm   #3
thermionic
Heptode
 
thermionic's Avatar
 
Join Date: Apr 2003
Location: Cornwall, UK.
Posts: 821
Default Re: BEC Capacitors

Hi Bob.

With the huge amount of DAC90A’s produced, I would imagine that those components would have been manufactured, delivered and on the radios production line in a very short space of time.

It seems that a large proportion of DAC90 production used these BEC (British Electrolytic Capacitors) in this position.

......And they’ve proved to be a good quality, long lived item, too!


Cheers.

SimonT.
__________________
The honesty of imperfection..........
thermionic is online now   Reply With Quote
Old 29th Jul 2021, 8:14 pm   #4
bobhowe
Heptode
 
bobhowe's Avatar
 
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 602
Default Re: BEC Capacitors

Hi David all the DAC90A that i have seen have had BEC capacitors apart from my 1950 DAC90A chassis it has a Radio Spares Capacitor with no date on it must have been replaced in the 70s as the wiring to it had been changed as well . Hi Simon Bush must of had a supply contract with BEC for smoothing Capacitor as well as TOC for the waxies you are right about BEC been good Quality and long lived kind regards Bob
bobhowe is offline   Reply With Quote
Old 30th Jul 2021, 8:00 am   #5
stitch1
Heptode
 
stitch1's Avatar
 
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 710
Default Re: BEC Capacitors

As shown here my DAC90A has a date of 1955.
https://www.vintage-radio.net/forum/...=182308&page=2
In the forces I thought I'd been told the date was the 'best before' on the shelf but maybe that was a date on a label not the component its self.

John
stitch1 is offline   Reply With Quote
Reply

Thread Tools



All times are GMT. The time now is 4:55 pm.


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 - 2021, vBulletin Solutions, Inc.
Copyright ©2002 - 2021, Paul Stenning.