"International" capacitors

Now you tell me!

Ron(UK)

Thank you for your reaction,I understand your reply.I am not into fancy hi-fi gear, that won t work for a Fender guitaramp I have been an professional jazz and latinplayer over the past 30 years, playing virtuoso. I simply can play more easy with those( international) more modern?) capacitors than with the Atom Spragues and old Mallory s, The sound respond(projection) is better too. Peter. schreef in bericht news: snipped-for-privacy@y66g2000hsf.googlegroups.com...

Thanks Graham , I will try the lower values. "Eeyore" schreef in bericht news: snipped-for-privacy@hotmail.com...

-----Original Message-----

They were typical japanese electrolytics of their day, and the quality and construction changed over the years. I would compare the ESR of those parts to newer capacitors. They probably used a thicker insulation to hold more electrolyte, so it didn't evaporate as fast. Standard Electrolytics were 65 degrees Centigrade, today you can get 85, 105, and I beleve 125 degree parts. The specifications on newere electrolytics is much tighter, they are made in smaller pacakges which mean thinner insulating layers, and some early Electrolytics only had a connection where the wire entered the cap, so there was also some inductance in the component.

I don't ever rember seing any datasheets on their parts, just a few US parts houses selling them for repair work.

"pk" schreef in bericht news:4613a4f8$0$79139$ snipped-for-privacy@news.xsall.nl...

It was a brand name of imported repair parts from Japanese and other countries sold in the US in the '60s and '70s. Tubes, capacitors, resistors and i think they had some connectors in their product line. They were about half the price of American made parts and some shops used as much of their stuff as they could to maximize their profits. Other shops stuck to American made parts, or OEM for repairs.

Yes, America still makes capacitors, but only the higher grades for industrial and military applications.

value

The capacitance value usually stays pretty close, what happens is the ESR increases, so a smaller value cap won't do it, but a resistor in series will.

value

The capacitance may decrease too.

Graham