[Milsurplus] Russian tubes & components

[Michael]

Thanks, Glen.  I was definitely hoping for a positive report.  While I’m on
the other end of the power scale (100w out is QRO for me. :-) ) I’m glad to
know that the tubes are worth the cost.  One of the tubes of interest is a
submini pillar-type dual control grid pentode where both control grids are
effectively coplanar and have equal authority over the signal.  Another tube
(not a submini) has two plates that are likewise effectively coplanar and
electrically equal.  I’m not sure about the latter yet but the former will
make a good mixer for both Rx & Tx use.  There are a few others that have
caught my attention and I want to experiment with.

 

Best Regards,

 

Michael, K3MXO, CBLA #6, BL01hx15np24 ... or there abouts  

Sometimes I pretend to be normal but it gets boring so I go back to being
me.

 
<blocked::blocked::blocked::blocked::http://www.nationalmssociety.org/chapte
rs/NTH/index.aspx> http://www.nationalmssociety.org/chapters/NTH/index.aspx

 <blocked::blocked::blocked::blocked::http://wh7hg.blogspot.com/>
http://wh7hg.blogspot.com/

 
<blocked::blocked::blocked::blocked::http://kludges-other-blog.blogspot.com/
> http://kludges-other-blog.blogspot.com

Hiki Nô! 

  _____  

From: Glen Zook [mailto:gzook at yahoo.com] 
Sent: Saturday, 03 May, 2014 05:00
To: Michael; Milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] Russian tubes & components

 

A couple of years ago, I built a 160-meter linear amplifier using the
Russian GI-7bT tubes and am slowly building a 160-meter through 10-meter
linear using the GS-31b tubes.

 

http://k9sth.com/uploads/160-meter_amplifier_article-1.pdf

 

Also, am gathering the parts to make a 6-meter linear and a 2-meter linear
using GI-7bT tubes.

 

I have a Hallicrafters HT-33A, that came from the factory with most of the
HT-33B changes made, that has a bad PL-172 tube.  Also, the amplifier had
been severely "hacked" and the results are not "pretty"!  I am seriously
considering replacing the PL-172 with a Russian GS-31b tube.

 

It has been my experience that, at least for the high power tubes, the
Russian tubes are definitely worth the money.

 

Glen, K9STH

 

Website: http://k9sth.com

On Saturday, May 3, 2014 12:10 AM, Michael <k3mxo.hi at gmail.com> wrote:

Do any of you highly esteemed gentlefolk have any experience with the
subject line subject?  I’ve been looking at some of their cold war surplus
for use in a few projects here, concentrating on the pillar-type submini
pentodes.  I find them utterly fascinating along with a few other subminis
with ratings that blur the line between submini and mini.  



One of the projects is a walkermobile/park bench portable crystal control CW
rig for 40-10m (harmonically related bands only) good for around 10w out and
possibly convertible to DSB later on.  From what I can see, such a wee
beastie should be easy on batteries except for the PA and even there the
average power will be fairly easily manageable.  



Anyway, if anyone here has any sage advice – or advice of any other
seasoning – it would be greatly appreciated.



Best Regards,



Michael, K3MXO, CBLA #6, BL01hx15np24 ... or there abouts  

Sometimes I pretend to be normal but it gets boring so I go back to being
me.


<blocked::blocked::blocked::blocked::http://www.nationalmssociety.org/chapte
rs/NTH/index.aspx> http://www.nationalmssociety.org/chapters/NTH/index.aspx

<blocked::blocked::blocked::blocked::http://wh7hg.blogspot.com/>
http://wh7hg.blogspot.com/


<blocked::blocked::blocked::blocked::http://kludges-other-blog.blogspot.com/
> http://kludges-other-blog.blogspot.com
<http://kludges-other-blog.blogspot.com/> 

Hiki Nô! 



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