SKM C450i23082218440
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THE WIRELES SZ1N ST I TUTE
Q'E^AU'ST^^L:r'A .
Ta'si&an'ian Division
.
Box 8'$1 J G. P. O.
HOBART
MOWTOIj Y BULLETIN
AUGUST 1960
PRESIDENT r^. .,.. 3ECRETARX--... . .....
,. ^r7-T7:,riten :..VK7AL P'KEGE:6d.
Mr... K. Mill in VKTKA
'.. TREASURER-
..Mr o Co Harrlsson
VK7CH
MEETONG -PLACE - 147 Liver ool S-treet . HOBAR^,.
., , . ;. _, , p W^lly ^chapsg No-2^ Bulletin coming up. There were, no -, ;.
comments on ] ast .month''s: Bull-e tin. including the fact' that tl^e ^circuit;, did :
.
not reproduce: as v^ell as was hoped, bu-b this months sfaould be'better aa I
.
haye. propur. ea. a ^special p.en , and. writing sheet. . I ..have also r'eoeivQd
ri.ria'. tyuctiona nof'to -try "and" 'trace' it so herer's-hopin-g. ' . .-Don' 'fc- forget;" if
you- have _a'ny'ideas about the Technical articles, then by, all means let
us have them^ ' ; ' ~ " . . .. ..-.
"
GEtTfiR AL: MEEIING: ; . TCie .. ne^t General '"Me e ting of w^ll .. fee . held
fchi a Divi. s ion,
at-tHe~-Club RooiAs, 147"Livertiool' Street, HOBART, on Auguat Srd, at; 20(5 0 "I
SHARP«. . Don.tt be late. o . - ' T ^ ~ . . - ^ ,-
LECTURE:' . "_. :. ,' ,. , _ This/mon-bh we will .. be vis'itin.g , IHOBA^T gAHLO.VIH» . Pl. eajp
Uo not confuse the call sign'o-. '-Mr^-BILL WATBON^ 6. 1. G. :"has :^irici. l7-. :agr. e©(3./ ,
bo s'howMeiii'bers ov^r his recently iinp^oved station and, dembns'fr'a-be some. Qf
.
the'"ft'ew, equipment;^ remotely . controlled receivers, efo. There ^3 quite' a
lot to,, see-aria. I 'am. '^supe tha-bc>all'Members will be greatly int. erested*. .'
HenGe_t;^e, fac-btKat; 'we 'want to get the Meeting, off to . an early s-barti so thp.t
we will ^aye^ample'tfai e'^o spend with HELL and;;his:;6quipni^rit«", Qn 6 e'again,
dont;;foilget_tUe/time,, ' _2'600 hrs S^^R^c Tliose Members'with- car's will, no
doubt, be able to supply transp^?'E~Tor those who havent, - '
UN^AN-CTAE'l-'MEMBERS:^i There' are, -still quite a-. few:Members who have.... fchua',, £ap
neglocted to'pay 11'ieir sub., -If tnis sub, is mot received'before'Augilst; '
8th next then those Members concerned will be. delQted f'r'om the Membex's. hip
Ii is-Sy. and as""a re;s'ult -wi'll riot receive ('A. 'R. " . or .. fchi's
». Bu. lletiri,
'
'
THI'S. XS. ''.
mE''II TENM> WAENTNG. "' "":' . -'. .. :' -' . '". '"
;' .;
I^. W. ZONE:' . Ttie Annual General Mee-bing bf'.the N. W. .Zone . will':'be-. held1
on; Tuesday, August gn.d. .. at LAEINS- HALL, ULVER3TO.NE.· Now , all Zone. Members,'
PL'fiASE make s note" of -this date and'make an . all-bu. t feffort tio. be there" and
help your Zone along. You will also be<able to pick'up some extra log
sheets . in ^ cage I. ; donT t send ycfu ^ enough^ by other meE^a-s .. - Dont- forget that
your. President and S.ecretary" put in a-lo':b of v/ork in. oonnection with your
Zone^. so get along and sy.pport their.' efforts on YOUR- behalf, '.
NORTEIE'RN ZONE:. , Ti-ie. next Meeting of this .. Zone will. be held. -at the .
., res7i<a^ne^ of Mr. ED* .. BO.VIS.j, VK7ED« I . aon-t-t know'what is-, .en the Agenda for
this Meeting, One sure way . fco. fi.nd out is to be there ^ so keep-it;-in mlnd'».'
S. WcL*. GROUP; . This Group will meet as usual, on'the second'Wednesday in.
'the montKp August 10th» to be precise, and s%.ve the wear and tear - on your
Calendar, The President, Mr= PAT GEEVES, 'has unfortunately fou. nd'it"
necessary -bo resign owing to pressure of work and the fact' tha-b lie cannot;
always be present because of this work taking up much of his spare time, ''''
Mr, '[ED. BEARD^has been elected Presiden-fc in his stead and the'new Secretary
3-s ^ Mr ^MICHAEL JEIJNER, 20 Church Street, NE'ff NORPOIK. / Please make a note of
this address go that you can refer any requests for information re S. W. L.
Group direct to their Secretary. , All visitors are welcome.
VB H. F. G-ROUPt. ^'Ths Group'-will'mee. t as usual
"
oh the third Wednesday in
the "morTth, '-Augiast; 17tho At the 1-ast meeting a Committee was elected to
arrange a programmer me)(if you prefer it tha-b way; 30 that when said
-2-
Committee gets into action shortly, '-I will be able to keep you posted on this
Group1 s activities* Again, all visitors are welcome.. Remember" that these.
Groups are a part of the Institute. We dont want; any lines of demor^ction
t;o creep into these activities. It can easily happen but it is unncecessary
and, bluntly, ridiculous. ALL Meetings condu'cted by the Division and Zones"
and Groups are for ALL -bo attend and if you know anyone who is not a Member
but you think would be interesfced tiheh "bring-them along by all means - the
more the merrier.
OUR FUTURE HOME: . After a lot of discussion by the Council ever quite a-.'
newmon 3:--an3~a;t; "the last General Meetin-g, we have decided that we will
have our own Club Rooms. This, of courso^'is an ambitious project but the
general feeling la that It ia really the . only way. It v/ill~ eventually
happen anyway, so it may as well be'sooner, as later, Ihere are quite'a lot
of details to be worked out yet on how we will raise the necessary fl unds
(funny xhw that question always seems to crop up) , In the meantijne, if ypu
have any ideas, tton by all means.. l.et us have. them* We are hoping that; we will
be able to 3ub-let;"'tfe"Ro'oms when "we-'have them* We may also be able .bo get
some other Club or Organlaation Interested, but if possl'ble we want; -bo'do
It; on our. oim^and then we have the say In what goes» ' :New d»nlt; forget, any
-ideas, at all,. or comments for and against, all are welcome*
REMEMBERAN. CE . DAY . GQNTESTi DATE .-. August l,5-bh"14th. TIME -1800 hr s' Aug 13-bh
1759 hr s Aug 14th
" ItULSS - Page 9, Jun'e "AMATEUR KADIO"o
You will receive Log Sheets for this .Contest*' Keep the relevant copy f
"A«R«. lr on .your'de, sk";and when -bhe'whistle goes, hop Into it.
The Contest this year will be opened by HIS EXCELLENCY THE 'GOVERNOR
of.. TASMANIA-an d his address will be transmitted from Divisional Sta-bions
throughput ".the Commonwealth* We want everybpdy in it and remember that.. _t;he
'longer .. you operat;e the tiet-ber-dhance . we have o. f Winning, Everybody*31 score
ooun-bso . S<5 now it is up .to you. Another . effort at; least equal'-bo last
years will go. a. long way to retaining the Trophy but don't forget; that-the
.
Mainland States also have some ideas about winning it from us so let -us
have some really^good scores and - MOST IMPORTANT. .. " having joined in the
Contest,.. plQas6''4o.. NOT forget to send the'.. COMPLEr[rEDLOG to Box 85Ui G. P, Q«'
HOBART* " " "' \
FOR SALEt 24-ft-Oregon lattice tower - £5.. Or exchange for tw. o 55ft;-40ft
po ©s.,: Please con-ba ct;;VK7JO, Mr* JIM .OLOVER, 83 Mon. -fcague'-Sfc.- NEW TOWN:.
WANTED. One. No-lgB. Set;. If you-have a. surplus one which you. wish to
dispose of, contact; Mr. D^VIS SLOWAN VK7CB, Glenbrook Orchard, . SPKBYTON,.
^TECHNICAL: , 1'be following T. R. Switch has"been In use at VK7 KA since
Oct<,19-58 and'to.,date. has given no trouble* It was originally described.-"by "
W8EUJ In . QST. Sep'b. l&5a, .but'has been slightly modified more in regairds to .
the H. T. Voltage than anything . else* ",,.'
;. ,Al36ut':the only'. thlng -bhat is importan-b is . the:. length of line
betwe'eh the Ttran3ml, 't;.'ber and the' switch. I use about; 8-9 feet of 50 OHM
oo-ax, The length "of 1 in e be tween the switch and'receiver Is 18 inches* 1rhe'
other end of, the co-ax line. on the input side connects to the outpat of the
tran. smlt-fcer-'to, in my cas, e, ' the co'*ax line to the antenna coupler. It may
be ri'eceasa'ry . to provide bias 16 out; of "fche final tub. e dumg receive-Ib^ over"
com^'-diode noise generated in the final tube, /c, r, -,L
-6Z7^' in--
Unless otherwise indicated, oapaci-fcanG.es
are in-uuf.-resistances are in . ohms and
1/2 watt. LI and L 2 are .. eac, h wound with, '''
50 tupns No-24... wire on a 5/16" dl. ^e'.ter
former» ,. . . .:
/^.
.
^ .. . '. k^i;
. '.;-. ^:a- '. ^.
-.... ^-^01
Best of luck in the .Conte.st and.i. may ths, best 3ta. te( Tasmarti-a) . win*.
:... i73, ....K. E. MILLIN , ,'. Hon.. See. . ' ""