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 Return to top of page · Post #: 1 · Written at 3:14:35 PM on 14 November 2013.
Lwtwentytwo's Gravatar
 Location: Maffra, VIC
 Member since 11 November 2013
 Member #: 1447
 Postcount: 4

Hi recently decided I need a new radio for the kitchen, NAH not that plastic stuff.
SO I obtained this um sort of car radio, looks great for something so old, didnt come with a lead so I obtained an older style jug cord.
Asked a member on here for some wiring diagram,(thanx Kent) which was quickly supplied along with some sound advice NOT to plug her in just yet.
So for those in the know where should I start to ensure she wont fry, I'm handy with a multi meter, and part of my real job involves appliance testing .
Do I just test the valves etc, or replace them regardless,ANY help greatly appreciated.lee in east gippsland


 
 Return to top of page · Post #: 2 · Written at 6:35:07 PM on 14 November 2013.
Art's Gravatar
 Art
 Location: Somewhere, USA
 Member since 22 October 2013
 Member #: 1437
 Postcount: 896

No, it's electrolytic and paper capacitors (minimally) you replace regardless.

http://antiqueradio.org/recap.htm.

I'm an expert now because I've fixed one radio Grin


 
 Return to top of page · Post #: 3 · Written at 1:14:55 PM on 15 November 2013.
Wa2ise's avatar
 Location: Oradell, US
 Member since 2 April 2010
 Member #: 643
 Postcount: 830

What you need to replace are the wax paper caps and electrolytic caps. Replace one at a time with the same cap value within 20%, and the same or higher voltage rating. Do one at a time so you don't forget where it connects.

The valves are most likely fine. Valves that sit unused, in the box or in an unused radio, will last forever. Wax caps only last about 30 years, used or not, and they quit making them about 50 years ago, so...


 
 Return to top of page · Post #: 4 · Written at 10:59:35 AM on 16 November 2013.
Duconbuster's Gravatar
 Location: Riddells Creek, VIC
 Member since 7 August 2009
 Member #: 526
 Postcount: 123

G'day Lee, if you are planning on giving your radio a lot of use over a long time & as you are handy with a meter I would recommend that you throw the meter leads over the resistors while you have it apart. They go radically out of tolerance with age & can lead to poor performance at best. Even later radios from the 50's suffer this affliction. Smile
Cheers Paul


 
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