There is only a 572B's manufactorer in China. That means if you purchase
Chinese 572B,even diffirence logo,but same quality.another option ,Russian
572B, but I heard of that tube can not fit RF service.only for audio.
IMO, maybe you drive the 572B too hard or you PA with problem.It shoul be
with longer tube life.
73!Hsu
-----原始邮件-----
From: James McKellips
Sent: Saturday, March 23, 2013 6:04 AM
To: amps@contesting.com
Subject: [Amps] Source for good 572B's tubes?
Hello listers,
I am looking for a good source of 572B tubes. I have been buying them off
eBay and these are Chinese tube. They haven't last more than a year. Any
have any ideas, I would appreciate it. Please send email to
w4nft@mckellips.net
Thank you and 73,
Jim, W4NFT
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|