14 Feb
2010
14 Feb
'10
12:37 p.m.
On Feb 14, 2010, at 1:45 PM, Randy Dawson wrote:
--
Dave McGuire
Port Charlotte, FL
There was some criminal stuff going on with
electrolytes in this
era, from the asian manufacturers. Almost everybody associated
with the type of electronics that was not 'throw away' remembers
this. I had a note from a pro video repair shop, saying that to
get a $15,000 pro video camera back in operation would require the
replacement of all the tant caps, as they were all destined to
fail, and yet another trip to the shop.
Anybody else recall this? There was one chemical manufacturer
pinpointed, that was supplying XR7 or whatever electrolyte to all
the manufacturers. They shortcut their process and cut costs, and
several years of electronic products were affected.
Not tantalum, and not X7R. X7R is an EIA specification that
pertains to ceramic capacitor temperature stability. The electrolyte
problem was a stolen formula that was incomplete, but was used by
several manufacturers. This happened in 2003; the market is still
flooded with bad (non-tantalum!) electrolytic capacitors.
-Dave