Tag Archives: capacitor

Refurbishing Vintage Sansui SP2500 Speakers (Crossover Repair)

Posted on April 5, 2011 by jwk

I’m always keeping my eyes out for interesting vintage hi-fi speakers from the ’60s-’70s, and found a nice set of Sansui SP2500s on Craigslist. Produced between 1960 and 1974, these beautiful walnut speakers are solid and very heavy – definitely … Continue reading →

Posted in Electronics, Projects, Vintage | Tagged , , , , , , , | 37 Comments

Old Radio Detective Work

Posted on March 25, 2011 by jwk

I’m still working on my 1941 Stromberg-Carlson 520-PG and am running into a few new problems I’ve never come across before. Back in the era of tube radios, everything was serviceable on a component level and most people had enough aptitude and … Continue reading →

Posted in Projects, Radios and Tubes | Tagged , , , | 3 Comments

Antique Capacitor Color Code Chart

Posted on February 16, 2011 by jwk

I’m working on restoring another radio, and it has antique capacitors with color code markings that are different from the commonly used 3-digit codes found today. It took a bit of searching to find a good chart with these, so … Continue reading →

Posted in Radios and Tubes, Vintage | Tagged , , , , , , | 3 Comments

Refurbishing a Capacitance Tester

Posted on January 20, 2011 by jwk

Parts Express sent me an advertisement for a $45 capacitance meter today. This actually a pretty good deal, and it’s a useful thing to have around if you’re doing electronics work. I’d probably have bought one myself, if I didn’t … Continue reading →

Posted in Electronics, Radios and Tubes, Vintage | Tagged , , , , | 1 Comment