The Svetlana works OK but has a smaller anode and less dissipation. They
havent been made in several years now.
Carl
KM1H
----- Original Message -----
From: "David Harmon" <k6xyz@sbcglobal.net>
To: "'Marcelo Cabral'" <py1kr.marcelo@gmail.com>; <amps@contesting.com>
Sent: Friday, November 07, 2014 12:25 PM
Subject: Re: [Amps] 572B - News?
Marcelo.....
Try to find some 572-B made by Svetlana.......they are much better
quality.
I have had several sets of them and I prefer them over the Chinese mfgd
tubes.
73
David Harmon
K6XYZ
Sperry, OK
-----Original Message-----
From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Marcelo
Cabral
Sent: Friday, November 7, 2014 11:18 AM
To: amps@contesting.com
Subject: Re: [Amps] 572B - News?
Hi, Carl!
Good news at the end!
Sincerely, I will try a MP pair of these new tubes after January, but I
haven't big expectations about their reliability.
But, if them survive at least one year, I must be finished the others
projects and be able for start this mod for GI7B. For today, I'll buy some
GI7B's from UR4LL, must be useful in a near future.
Thanks everyone, hope to meet everybody in CQWW CW soon.
Marcelo - PY1KR
-----Original Message-----
From: Carl [mailto:km1h@jeremy.qozzy.com]
Sent: sexta-feira, 7 de novembro de 2014 14:52
To: Marcelo Cabral; amps@contesting.com
Subject: Re: [Amps] 572B - News?
RF Parts will be taking new 572B orders in Jan 2015, Id rather wait than
hack up a perfectly good amp for an inferior tube.
http://www.rfparts.com/tubes/tubes-572b.html
Carl
KM1H
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