K&K Audio / Lundahl Transformers

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arc update

64.241.37.140
Posted on October 24, 2009 at 18:31:31
JKT
Audiophile

Posts: 182
Location: Midwest
Joined: November 26, 2002
 Hey Kevin,
My email server is down so I'm updating here. Had a couple of "crackles" from the amp last night, so I popped the hood this afternoon. One of the output tube grid-stoppers looked scorched. It measured about 80% of it's value. It seems one of the output tubes is the guilty party. Replaced resistor and re-tubed both output stages and everything seems fine for now. Tantalums do smell bad when they fry! Might be a good idea to have these resistors accessible on the commercial version of these amps. -JT
RE: arc update, posted on October 25, 2009 at 18:37:22
KevinC
Manufacturer

Posts: 1999
Joined: April 19, 2001
Contributor
  Since: October 7, 2002
 A burned grid stopper is rare, but it happens.

In case your server is still down, your RAKK dac stuff is on the way, probably arriving Tuesday in your mailbox.

Kevin Carter
K&K Audio
www.kandkaudio.com

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