[NJARC] 572B tubes

[Scott Roberts]

Hi Joe-
I see lots of new Chinese & Russian made 572Bs on e-bay, but wanted to see if anyone in the club had a set of them to spare first... Hoping to save a few $$... As usual...lol...

As to the 866A's, they are quite a bit bigger & won't fit in the HT-41. The 866AX is a shorter model... I understand there is a solid state replacement, I am just waiting for details.

Thanks!
Scott

--- On Thu, 7/2/09, joseph cro <n3ibx at verizon.net> wrote:

> From: joseph cro <n3ibx at verizon.net>
> Subject: Re: [NJARC] 572B tubes
> To: "Scott Roberts" <ng19delta at yahoo.com>, "NJARC Radio Club" <njarc at mailman.qth.net>
> Date: Thursday, July 2, 2009, 6:59 AM
> Scott,
>        I have a pair of regular
> 866A's you're welcome to. They're not the AX variety as
> manufactured by GE, but they should do the job just the
> same. Regarding 572B's, they're pretty hard to come by used
> since they were designed specifically as a "Amateur Radio"
> type of tube, not used in commercial applications. RF Parts
> in Ca. sells their Chinese made "Taylor" 572B's for around
> $50 or so each. I think your best bet would be to contact
> them if you don't get any responses. You could also try
> QRZ.com in their wanted column. Ditto with "Eham.net". You
> may just get lucky and find someone who has a used pair to
> sell you at a reasonable price.
> 
> Best Regards,
>                
>    Joe Cro N3IBX
> 
> ----- Original Message ----- From: "Scott Roberts" <ng19delta at yahoo.com>
> To: "NJARC Radio Club" <njarc at mailman.qth.net>
> Sent: Wednesday, July 01, 2009 10:14 PM
> Subject: [NJARC] 572B tubes
> 
> 
> > Just remember
> > Reply = Poster
> > Reply All = Everyone
> > 
> >
> _________________________________________________________
> > 
> > Hi Guys!
> > I just found a QST article on how to convert the HT-41
> from 7094s to 572Bs- Does anyone have a pair of 572Bs in
> decent shape to spare? I am hoping to recap & convert my
> Hallicrafters Super Paperweight into a useful linear amp
> once again! (I also -still- need a pair of 866AXs for the
> rectifiers, unless someone has a good mod for them, too...)
> > 
> > Thanks!
> > Scott
> >
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