[Henry] Are 3B28's reliable??

[Tim Kass]

Check the circuits, but most are wired with another one in paralle - have used 3B28 several times without problems.  About the same voltage drop...these were in stalled on my Globe King 400B transmitter.  I did replace the 866jr with solid state plug ins.
 
Tim

--- On Mon, 2/7/11, Milton Valerio <oligo_cr at yahoo.com> wrote:


From: Milton Valerio <oligo_cr at yahoo.com>
Subject: Re: [Henry] Are 3B28's reliable??
To: henry at mailman.qth.net
Date: Monday, February 7, 2011, 4:05 PM


Yes that was another option but I have heard several encountered opinions regarding that, ones says that is just as simple as plug and play others says not, one need to put a resistor somewhere because resistance are differents etc so I'm affraid to make a mistake here but hey I feeled tempted to do it, yes on ebay you see them from time to time.
 

--- On Mon, 2/7/11, Tim Kass <k8wbl at yahoo.com> wrote:

From: Tim Kass <k8wbl at yahoo.com>
Subject: Re: [Henry] Are 3B28's  reliable??
To: henry at mailman.qth.net, "Milton Valerio" <oligo_cr at yahoo.com>
Date: Monday, February 7, 2011, 12:10 PM

I suppose they are also subject to be "gassy".  I have replaced my 866 Mercury Vapor tubes with the 3B28 rectifiers...I believe that they may have a higher flash point, can take a bit more HV and current.  You also don't have to wait for them to warm up ... good luck...they do make solid state plug-in as well.  Surplus sales of Nebraska has them but are expensive through them...try Ebay..
 
73, Tim K8WBL

--- On Mon, 2/7/11, Milton Valerio <oligo_cr at yahoo.com> wrote:


From: Milton Valerio <oligo_cr at yahoo.com>
Subject: [Henry] Are 3B28's reliable??
To: henry at mailman.qth.net
Date: Monday, February 7, 2011, 12:01 PM


Hi to all, after having some problems with my 2K I though about how reliable were NOS 3B28's?
I got a new pair of these but after put them in service I noted that the purple color was not the same for both and also one use to show like internal "lightnings" I always believed that NOS are bullet proof but is that true or its a matter or luck.

Milton


      
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