[Amps] SB200 on 6m & my take

KB0NLY kb0nly at mchsi.com
Fri Mar 13 14:41:27 PDT 2009


If the 572's ever go in my SB-200 and there isn't a good source of 
replacements I will just convert it to a GI7B and then I have two amps 
running the same tube.  Buy up some spares and I can run for a while without 
worry.

73,

Scott


----- Original Message ----- 
From: "Steve Katz" <stevek at jmr.com>
To: "Mike Schatzberg" <cherokeehillfarm at earthlink.net>; "Carl" 
<km1h at jeremy.mv.com>; "KB0NLY" <kb0nly at mchsi.com>; <amps at contesting.com>
Sent: Friday, March 13, 2009 3:52 PM
Subject: RE: [Amps] SB200 on 6m & my take


Hi Mike,

That's great.  I was questioning the availability of "new" 572Bs that are 
actually good, and maybe the answer is "there aren't any."

I had Cetrons in my old SB-200 and they worked well.  I don't have an SB-200 
today at all, so it was a general question.

73

Steve WB2WIK/6

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]On
Behalf Of Mike Schatzberg
Sent: Friday, March 13, 2009 1:44 PM
To: Steve Katz; Carl; KB0NLY; amps at contesting.com
Subject: Re: [Amps] SB200 on 6m & my take


Hello Steve:

I just finished rebuilding my old SB-200 with a new power supply and new 
cooling.  I just shipped it to a ham on St. Thomas, USVI.

This was the last one of those amps I built in 1968, and I included a NOS of 
Cetron triodes.

As I don't have another SB-200, I will be selling some spares and pulls, and 
parts for the amp.

If you need something, let me know.

Best personal regards,

73,

Mike
W2AJI

-----Original Message-----
From: Steve Katz <stevek at jmr.com>
Sent: Friday, March 13, 2009 2:06 PM
To: Carl <km1h at jeremy.mv.com>; KB0NLY <kb0nly at mchsi.com>; 
amps at contesting.com
Subject: Re: [Amps] SB200 on 6m & my take

Q: Where can I buy (today) a Cetron or "real" Taylor 572B?  If they're out 
there, I must be blind...I don't find them.  Do you have a source?

73

Steve WB2WIK/6

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]On
Behalf Of Carl
Sent: Friday, March 13, 2009 11:03 AM
To: KB0NLY; amps at contesting.com
Subject: Re: [Amps] SB200 on 6m & my take


You are so clueless.

The Svetlana isnt even a close clone to the Cetron or real Taylor. Its
quite different internally.

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