Info on Russian Tube GU-74?

ve2zp at bbs.ve3jf.ampr.org ve2zp at bbs.ve3jf.ampr.org
Mon Sep 12 02:37:01 EDT 1994


I am looking for the specifications, ratings and pin diagrams for a 
Russian-manufactured tube.  The tube is a GU-74, a seven-pin external-anode 
metal-ceramic high-power tube suitable for use at HF.  I intend to use it 
in grounded-grid as a linear amplifier.

The full markings on the tube read as follows, transliterated from Cyrillic 
charcters: GU-74B8707 OTK 18

Can anyone help?

Thanks,

Dave VE2ZP/VE9CB  
Packet: VE2ZP at VA3TCP.#EON.ON.CAN.NOAM
InterNet: ve2zp at BBS.VE3JF.AMPR.ORG

>From Celia Tony Becker <becker at shell.portal.com>  Mon Sep 12 03:42:53 1994
From: Celia Tony Becker <becker at shell.portal.com> (Celia Tony Becker)
Date: Sun, 11 Sep 1994 19:42:53 -0700
Subject: NA Sprint CW score
Message-ID: <199409120242.TAA06144 at jobe.shell.portal.com>


      Call: AE0M  
      Mode: CW                       Category: Single Operator

               QSOs   MULTS
      Totals   103     30  =   3,090


Equipment Description:   
RIG: FT-990 & 486DX2-66 MHz running CT.  ANT: My CC&R's prohibit external 
antennas, so I have an indoor 20m, 15m, and 10m fan dipole, stuck to the 
attic rafters in my townhouse with push pins (green for 20m, blue for 15m, 
yellow for 10m) and a nearly invisible 40m delta loop in the eucalyptus 
over the garden wall.

Condo's and Contesting don't mix.

Perhaps I am jumping to conclusions, but there seemed to be a few stations 
on 40m late in the contest flagrantly violating the QSY rule.  Is there any 
means of enforcing this, or is it strictly on the honor system?

Tony Becker - becker at shell.portal.com - Silicon Valley, U.S.A.

>From Robert Wood <w5robert at blkbox.COM>  Mon Sep 12 04:09:49 1994
From: Robert Wood <w5robert at blkbox.COM> (Robert Wood)
Date: Sun, 11 Sep 1994 22:09:49 -0500 (CDT)
Subject: the /125 thing
Message-ID: <9409112209.aa18029 at blkbox.COM>

One of the better ones I heard during the /125 thing was
a 9 who was a asst director on 20mtrs, taking a list by
the last two please.  

speaking of GAS (agn.)  I was reading though NCJ last night
July/August 1990 and noticed a "for sale" home and one of the
features was 3-PHASE POWER.  Maybe 3-phase power isn't as uncommon
as I thought.  (pg.23)  Now why would a 2200 sq.ft. home need 3-phase?
-- 
73
Robert Wood                      
WB5CRG                  
w5robert at blkbox.com        (blkbox is NOT blackbox, inc.!)

>From rmarosko at bcm.tmc.edu (Ronald J. Marosko)  Mon Sep 12 04:25:57 1994
From: rmarosko at bcm.tmc.edu (Ronald J. Marosko) (Ronald J. Marosko)
Date: Sun, 11 Sep 1994 22:25:57 -0500
Subject: Various VHF scores from STX
Message-ID: <199409120325.WAA15974 at bcm.tmc.edu>

N5BA / EL29 Single Op
Band     QSOs     Mults
50       54       39
144      49       12
222      12       5
432      10       3
ALL      125      59     = 8,673 pts

KC5FP / EL16 Single Op
50       219      109
144      7        6
432      3        3
ALL      229      118    = 27,376 pts

KB5NFN / EL29 Single Op
50       275      109
144      54       16
432      21       7
902      2        2
1296     3        2
ALL      355      136    = 52,496 pts

KB5IUA / EL29 Multi Op (+WB5N)
50       386      153
144      117      27
222      13       7
432      36       11
902      2        2
1296     5        3
ALL      559      203    = 126,266 pts


>From David O. Hachadorian" <0006471356 at mcimail.com  Mon Sep 12 07:13:00 1994
From: David O. Hachadorian" <0006471356 at mcimail.com (David O. Hachadorian)
Date: Mon, 12 Sep 94 01:13 EST
Subject: K6LL CW Sprint score
Message-ID: <14940912061341/0006471356PK2EM at mcimail.com>

K6LL CW Sprint Score:

     BAND        QSOs
     ________________
 
      20           72
      40          121
      80          123
     _________________
 
     TOTAL:       316 QSOs  X   43 mults  =  claimed score:  13,588
 
     Team: SCCC #1                       

Nothing really out of the ordinary to report. Condx fair.
 
Dave, K6LL
k6ll at mcimail.com

>From Norton, Richard" <nortonr at MRD.SRL.dsto.gov.au  Tue Sep 13 01:56:00 1994
From: Norton, Richard" <nortonr at MRD.SRL.dsto.gov.au (Norton, Richard)
Date: Mon, 12 Sep 94 17:56:00 PDT
Subject: VK5GN Sprint Results and Re: AB6FO Comment
Message-ID: <2E74F8BB at msmail.dsto.gov.au>


VK5GN (N6AA op) Sprint Results

49 QSOs  22 Mults  =  1087 Points        (all on 20 meters)

If you didn't work me, it probably wasn't because I didn't call you.

AB6FO asked:

>By the way, why are there multipliers in the Sprint. I should be a straight 

>QSO count contest. Multipliers are purely serendipidous, you can't chase 
them
>or anything in the Sprint.

It may be hard to appreciate, but multipliers in the Sprint are not purely 
serendipidous. It is somewhat like poker. Beginners may think they loose 
because they are unlucky at cards. Skilled players make decisions based on 
experience and probable outcomes. In the long run, these count, and they 
win.

To first order, in the Sprint -  knowing who is active, and their QTHs, and 
what they sound like, allows you to identify stations that are multipliers. 
Then, there can be skill involved in getting them, particularly if they 
can't stay on the frequency, or you get beat out while calling them.

Second, there are overall operating strategies that probabilistically 
maximize your multipliers. They don't work every time, but over the long 
run, they produce results.

These apply to North America, not VK5, where you celebrate every time 
someone comes back to you.

It's almost time to go back to California. Oh boy, maybe they'll still have 
24 hour a day coverage of the O. J. Simpson trial on TV. I'm tired of all 
these kangaroos.

73,

Dick N6AA       NortonR at mrd.srl.dsto.gov.au        until Sept 15
                              ae327 at LAFN.ORG                           after 
Sept 15



>From k2mm at MasPar.COM (John Zapisek)  Mon Sep 12 09:53:49 1994
From: k2mm at MasPar.COM (John Zapisek) (John Zapisek)
Date: Mon, 12 Sep 94 01:53:49 PDT
Subject: K2MM NA Sprint QXQ 0
Message-ID: <9409120853.AA02746 at greylock.local>

1994 September CW NA Sprint -- K2MM John CA (Team NCCC #1)

        20m     40m     80m     QSOs    Mults   Score   AGS a la N6XI
        90      104     52      246     40      9840    9377

Operated from the QTH of Al Elge, AG6D.

Excuses (+) and Anti-Excuses (-):

    VHF contest same day                  100
    WAE contest same day                    2
    Company annual picnic same day        200
    Picnic had unlimited free beer        500
    Went to bed too late                   20
    Got up too early                        0
    Got up too late                       -20
    Started on time                      -500
    Didn't run gas                        250
    No rig trouble                       -100
    No amp trouble                       -200
    No computer trouble                  -300
    Intermittent 80m antenna               50
    Minor TR-LOG bug                        1
    Rotten QRM                             75
    Stopped to say hi to K9VV/6            25
    Failed to say hi to other friends    -150

    Total excuse points XQ =              -47
    Factor = (1 - 47/1000) =            0.953

My friend Roger/K1DQV says my excuses would have made me prime material for
learning how to play golf, except my mention of anti-excuses thoroughly
disqualifies me.  73.  --John/K2MM

>From Robert Penneys <penneys at brahms.udel.edu>  Mon Sep 12 12:35:12 1994
From: Robert Penneys <penneys at brahms.udel.edu> (Robert Penneys)
Date: Mon, 12 Sep 1994 07:35:12 -0400
Subject: WA4PGM Sprint results
Message-ID: <199409121135.HAA07794 at brahms.udel.edu>


Great job by WA4PGM for N.E.R.D.S.   305 x 42 = 12,810

Go N.E.R.D.S.!!

>From Robert Penneys <penneys at brahms.udel.edu>  Mon Sep 12 12:36:16 1994
From: Robert Penneys <penneys at brahms.udel.edu> (Robert Penneys)
Date: Mon, 12 Sep 1994 07:36:16 -0400
Subject: NERDS needed for Sprint!!
Message-ID: <199409121136.HAA07842 at brahms.udel.edu>



Join us for phone Sprint... we'll have some good'uns. Let me know....Bob

Bob Penneys, WN3K     Frankford Radio Club      N.E.R.D.S.
Internet:  penneys at brahms.udel.edu       Work: Ham Radio Outlet, Delaware
U.S. Mail:  12 East Mill Station Drive    Newark, DE 19711    U.S.A.


>From Rick, K7GM" <AONISWAN at ECUVM.CIS.ECU.EDU  Mon Sep 12 12:45:34 1994
From: Rick, K7GM" <AONISWAN at ECUVM.CIS.ECU.EDU (Rick, K7GM)
Date: Mon, 12 Sep 94 07:45:34 EDT
Subject: Sprint Mults & Score

     For the record, K7GM/4, low power, CW Sprint, 237 x 41 = 9717
(20=80Q, 40=95Q, 80=62Q).  Haven't figured the N6XI excuse multiplier yet.
Condix seemed long on all bands (NJ and FLA mults were touch and go).
South and west was the place to be (on the west coast, SFO and south were
loud, north of that was puny weak).
     Comments have been made concerning the use of multipliers in the
Sprint.  Although there is some amount of serindipity associated with
your multiplier total, there are also techniques you can use to increase
your odds.  Your multiplier total is not entirely random.  At the risk of
giving away too many trade secrets consider the following:
     1 - Some bands tend to be more multiplier-rich than others at differing
times.  When you first consider going to 40, you will obviously pick up
a number of multipliers since your skip zone will be different.  Even more
importantly, however, is the point when you stop running them on 20 and
start running them on 40.  At some time the Q rates on 20 or 40 will start
to be similar.  You have to weigh, however, going to 40 and have a good
chance of picking up some closer-in mults with, maybe, a bit lower Q rate
against staying on 20 and keeping the rate a bit higher.  You ask yourself
whether you think 40 will go long before you "get there" versus whether
you will lose Qs on 20 that you will not be able to make up.
     2 - There are some techniques you can use to help your multiplier
total:   If you hear a needed mult that will be moving, go up (or down, if
you prefer) and call a CQ (or call the station); go back to 20 and 40
"late" to pick up a few stragglers, many of which turn out to be mults;
have a second receiver on the low end of the band looking for Carribean
or Canadian mults.
     3 - When you hear a mult you didn't get, remember the call and use
that knowledge when making band-change decisions and when tuning the band.


     In the final analysis, the inclusion of multipliers adds another
element to Sprint scores.  You need to think of other things besides
just rate.  You have to position yourself to increase your multiplier.
It may not always be sucessfull (EVERY time you go to 40 late you will
not pick up a multiplier, but OFTEN you will).  I, for one, don't want
to see us get to the point where the only question we ask ourselves in
the contest is where can I get the best rate.

                                  Rick, K7GM

>From barry at w2up.wells.com (Barry Kutner)  Mon Sep 12 01:09:38 1994
From: barry at w2up.wells.com (Barry Kutner) (Barry Kutner)
Date: Mon, 12 Sep 94 00:09:38 GMT
Subject: WAE score
Message-ID: <Rugisc1w165w at w2up.wells.com>

Just playing around...
218 QSOs 217 QTCs 32 CTYs 125 Mults = 54,250

Was called by an OD5 on Sat. Expld contest to him.
He called again Sunday. Think this is the first time for a no-pointer 
dupe, hi.

--

Barry N. Kutner, W2UP       Usenet/Internet: barry at w2up.wells.com
Newtown, PA                 Packet Radio: W2UP @ WB3JOE.#EPA.PA.USA.NA
                            Packet Cluster: W2UP >K2TW (FRC)
.......................................................................


>From H. Ward Silver" <hwardsil at seattleu.edu  Mon Sep 12 15:02:04 1994
From: H. Ward Silver" <hwardsil at seattleu.edu (H. Ward Silver)
Date: Mon, 12 Sep 1994 07:02:04 -0700 (PDT)
Subject: AB6FO CW Sprint Score
Message-ID: <Pine.3.07.9409120701.B10372-9100000 at bach>

> 
> By the way, why are there multipliers in the Sprint. I should be a straight 
> QSO count contest. Multipliers are purely serendipidous, you can't chase them
> or anything in the Sprint.
> 
Oh, yes, you can...one of life's true frustrations.  "Which way is he
gonna go?"  "How close can I call CQ, so he'll work me next!"  Ahhh, Sprint!

Ward N0AX



>From H. Ward Silver" <hwardsil at seattleu.edu  Mon Sep 12 15:16:47 1994
From: H. Ward Silver" <hwardsil at seattleu.edu (H. Ward Silver)
Date: Mon, 12 Sep 1994 07:16:47 -0700 (PDT)
Subject: N0AX Sprint Results
Message-ID: <Pine.3.07.9409120747.D10372-9100000 at bach>


The Better Ed than Dead team was pretty small this time around; K7SS,
N0AX, WA7UVJ, KR7G, and K7HBN.  No certificates for us!  40 seemed mighty
good, having a beam helps, even if it is sitting on the chimney!  Worked
KB8N/WVa QRP for another QRP 5BWAS counter on 40...I'm a masochist. 
Missed Neb and Ks, though, and where was WD0T for South Dakoty?  Had fun,
will in the next one, too!

201 x 37 = 7437, low power

73, Ward



>From Bill Standerfer <bills at hpislwes.lvld.hp.com>  Mon Sep 12 15:25:32 1994
From: Bill Standerfer <bills at hpislwes.lvld.hp.com> (Bill Standerfer)
Date: Mon, 12 Sep 94 08:25:32 MDT
Subject: the /125 thing
Message-ID: <9409121425.AA19676 at hpislwes.lvld.hp.com>

I had some fun with the HPM celebrations, but ended with only 109 /125
contacts (guess I need to figure my Excuse Quotient for not getting the magic
125 ;-) ).

>the officials associated with emergency coordination sure don't 
>have much idea of how to handle a pile-up, and I wonder how useful 
>they are directing emergency nets on HF or getting emergency
>traffic through under poor conditions.  I also heard an Official
>

I think the answer is that they aren't very good at directing efficient nets
or passing traffic quickly.  I've seen a slow, but steady degradation of net
operating technique in my 28 years on the air.  We are now in the era of "This
is <key up>... <key down, say call sign>" emergency net operating.

>The whole thing convinced me even more that when the chips are down 
>and conditions are rough, the best person to have on the other end 
>is a DXer or contester.  Of course, I should really post this in a 

Agreed.  It was a pleasure to work the guys who could spit out "fiftynine dxfr"
instead of "five and nine, ah, do you have all my information?".  And it must
be some unwritten law that I'm not privy to that says you get extra points for
keeping your call sign secret for at least 10 minutes.

que ahr zed.

Bill

Bill Standerfer                        *        Hewlett-Packard Company
CFI-A, IA, ME                          *        VXI Systems Division
bills at lvld.hp.com                      *        Loveland, CO  80539 
Baron N222AB - KF0DJ - Pikes Peak 253  *        303-679-2378

>From Not a paperless office <young at young.enet.dec.com>  Mon Sep 12 15:17:46 1994
From: Not a paperless office <young at young.enet.dec.com> (Not a paperless office)
Date: Mon, 12 Sep 94 10:17:46 EDT
Subject: CQ WW, J7, ops wanted
Message-ID: <9409121416.AA23252 at us1rmc.bb.dec.com>

Charlotte, KQ1F and I are planning to operate the CQ WW CW from
Dominica, J7 (not to be confused with the Dominican Republic).
We are renting a two bedroom cottage on the north side of the
island.  The owner is ham-friendly and says that the gardener
will help put up antennas.

I'm looking for another operator or two for a multi-single.
Non-smoking preferred, and some knowledge of the code would
be useful.  First-time DXpeditioner is OK, as is ham plus
spouse.  There are additional cottages on the property if
a couple hams and spouses want to go.

If you are interested send mail to young at young.enet.dec.com,
or better yet call me at home (508)562-5819 or work (508)486-6597.

                                 Paul, K1XM



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