Welcome to Australia's only Vintage Radio and Television discussion forums. You are not logged in. Please log in below, apply for an account or retrieve your password.
Australian Vintage Radio Forums
  Home  ·  About Us  ·  Discussion Forums  ·  Glossary  ·  Outside Links  ·  Policies  ·  Services Directory  ·  Safety Warnings  ·  Tutorials

Vintage Television

Forum home - Go back to Vintage Television

 Restoring Vintage Electrolytics.
« Back · 1 · Next »
 Return to top of page · Post #: 1 · Written at 3:24:01 PM on 21 November 2016.
Irext's avatar
 Irext
 Location: Werribee South, VIC
 Member since 30 September 2016
 Member #: 1981
 Postcount: 485

I've just had a very good Ebay find which makes restoring vintage electrolytics quite easy. It is a 12V to 200V DC converter.

The Ebay item number is 281867623223 with a delivered cost of just under $18.00. All you need is a 12V power supply to drive it.

The output voltage goes up to over 250V and is adjustable down to 90V which is perfect for vintage electrolytics.

I put a 4.7K 5W resistor in series and monitor the voltage across the cap being restored.

It's quite fascinating to watch the initial very slow rise in voltage up to the rated voltage of the cap. Once reached I leave it connected for an hour or so. Then slowly discharge the cap to zero. The next charge cycle is many times quicker indicating much less internal leakage.

I am currently restoring a PYE W101 table top Television and this little converter is worth it's weight in gold.

Hopefully very soon I can apply full power to W101 and see what else needs replacing. All the paper caps have been replaced but I'm sure there will be a few high value resistors lurking.
 
« Back · 1 · Next »
 You need to be a member to post comments on this forum.

Sign In

Username:
Password:
 Keep me logged in.
Do not tick box on a computer with public access.

Vintage Radio and Television is proudly brought to you by an era where things were built with pride and made to last.

DISCLAIMER: Valve radios and televisions contain voltages that can deliver lethal shocks. You should not attempt to work on a valve radio or other electrical appliances unless you know exactly what you are doing and have gained some experience with electronics and working around high voltages. The owner, administrators and staff of Vintage Radio & Television will accept no liability for any damage, injury or loss of life that comes as a result of your use or mis-use of information on this website. Please read our Safety Warning before using this website.

WARNING: Under no circumstances should you ever apply power to a vintage radio, television or other electrical appliance you have acquired without first having it checked and serviced by an experienced person. Also, at no time should any appliance be connected to an electricity supply if the power cord is damaged. If in doubt, do not apply power.

Shintara - Keepin' It Real · VileSilencer - Maintain The Rage