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BULLETIN 1SSUED BY THE NORTHERN . PO BOX 1010
BRANCHES OF THE WIREILESS INSTITUTE LAUNCESTON
OF AUSTRALIA TAS. DIVISION. TAS. 7250
OCTOBER 1973
VOL. 3 NO 7
REGISTERED AT GPO HOBART
for transmission by post
as a periodical. CATEGORY B. PRICE 10c
AX PREFIX
As from the 1st of October until the 31st of December you may
once again use the prefix AX if you feel so inclined.
Though I agree with some of 7MX's grievances in his thought
for the month , we should also consider the other side of the
picture.
During this sunspot minima and resulting poor band conditions
have you noticed how the bands seem to improve when there is a
contest on somewhere or a contact is required for an award ?
When conditions are poor and you lose interest isn't it that
new country or prefix that makes you use your equipment and
thereby use the frequencies ?
Therefore if the AX prefix is going to increase activity,
particularly on 15 and 20 metres then its a good thing, even
if it may be a little inconvenient at times .
While on prefixes, listeninon the 2 metre FM channels for
a while and you will soon wonder whether we have even a VK
prefix .
73 John AX7JV
MEET LNGS
2nd October North West Branch , Lakins Hall Ulverstone
12th October Northern Branch , AEB rooms , High st
YRCS
6th & 20th October Elementary classes , Kings Meadows
High School , room 38 Dblock B
CONTESTS
1
6th & 7tH October VK=ZL Oceania , Phone
13th & 14th October VK~-ZL Oceania , CW
w
ReRsM.
BULLETIN OF THE NORTHERN BRANCHES OF THE W.I1.A. TAS. DI1V. OCT;'73
Page 2
The meeting of the Northern Branch held on September 14th
was chalred by Peter 7PF and attended by 32 members.
One of the appologies received was from Norm 7NR who was enjoying
- himself in Sydney, however Norm had made arrangements with Joe 72GJ
to take over while he was away, thanks Joe.
A discussion over two letters received asking for assistance in
the Jamboree on the air resulted in Norm 7NR and Peter 7PD being
nominated for the job of organizing equipment and operators,
subject to their acceptance as they were not present.
fLevin 7ZAH reported that equipment store sales last month amounted
to $412.75 and our bank balance is $706.25.
Lindsay 7ZLD spoke about the Hamfest arrangements and requested that
members ask their xyl's and yl's to help by supplying hot dishes
for the Saterday dinner, please notify Lindsay of the result if
succesfull.
QRM,, I pointed out that postage rates will increase early next
yvear ‘and this will have to be considered when subscriptions are
reviewed at the end of the year.
Some costs are offset somewhat by selling advertising space on
the back page, we ask our members to patronise our advertisers
and to mention QRM when dealing with them.
Postage rates will double next year and it will cost 55 cents
per member to post QRM to them, who said Ned Xelly is dead.
The question of lectures and films was raised and it is hoped
to obtain more of these for future meetings.
After the meeting closed a Barlow Wadley receiver, brought along
by Geoff Lang, was demonstrated and a keen interest was shown
by all.
S R a's
Jo wle N2 R o Ll
she ute
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Congratulations to Malcolm VK7ZMS on his pass in the recent
CW exams, lets know what the new call will be Malcolm.
o oot gl sk S SNt ok e Rk
Some new equipment aroud the place includes, Reg 7KK's new
6 metre transverter, IGL tranceivers of Maurice 7JU, Dean 7ZAD,
Phil 7ZAX and Bill 7AK .
o et ek e s e sjesieoae ook
S 220 ata WYt Wt ste we Al Wt ote
ok ok
Gt ats =fe al,
Seems DCA has given Eric 7ZEC a spell in Hobart to learn all
about digital electronics and roulette, hope you win Eric.
Seoeck e ki
sz ekok
R
We still have some advertising space for sale on the back page
if you know of anyone that may be interested please contact
John VK7JV or write to, Editor QRM, PO BOX 1010 Launceston.
o s esleseskok sk esl e ook
Astronomers predict that a comet discovered in March this at
Hamburg, is leading towards Earth. It should be visible in our
morning sky in November and December, and the evening sky in
January 1974,
The orbit is still in doubt, but it is predicted to be closest.
to Earth during mid January. Since last month the comet has
been hidden from view by the Sun.
Astronomers predict that this comet will be more spectacular
than "Halley's comet",
i1t will be interesting to see what can be done on the VHF bands .
Qe Ro M.
BULLETIN OF THE NORTHERN BRANCHES OF THE W.I.A., TAS. DIV. OCT.'73
Page 3
Tnlu months thought provoker. 1 have had no kick back yet but may
strike o0il yet. Somewhere I heard, on the Broadcast maybe, that the
use of the prefix AX instead of VK would be approved for 3 months
use to mark a Royal visit.
To me this is a rather stupid idea and I can find no merit in
changing for such a short period, in fact at any time.
If it was an internal affair between VK stations only, we would
all be aware of the significance of it,but to foist it on overseas
stations with resulting confusion and explanations is pointless.
Our VK call is recognised and long respected overseas so why mess
about with it., I for one will not use it.
Following my expostulation last month on W.I.A. activity, on
reflection, I must qualify my plea to non active members.
The first consideration 1s, be a member of the W.I.A. Boost the
numbers.
However we appreciate that there will be amateurs, particularly
younger ones who are studying, forging a career, who cannot allow
a hobby to interfere with study.This is a commendable attitude
and after all A.R is a hobby.
Just give us your support financially and morally and active members
will carry on the good work for you until your turn comes.
Now the news. Our monthly meeting was held on 4th Sept. with a
poor attendance.
Don't bother to come along chaps, you don't have to.
The faithfull few will carry the flag but if the situation worsens
there will be no flag to carry. Don't suggest that it is to far
to come, it wasn't for Steven 7ZSF who came from Launceston.
Thanks OM for your interest. Bob 7ZRF who was in the area was allso
welcomed. It was an interesting meeting really with some curly
points coming up.
Afterwards a most interesting lecture was given by David 7MS on
a most unusual branch of electronics, illustrated in a practical
way on his home built computer, you missed a beauty non attenders,
Have you ever wondered what hams do for a living? Well here arec
some details on our local lads, 7AX,7MZ,7Z2GSand 742JS are associated
with the P.M.G. Dept. 7£H and 7SF in the car industry, 7ZBE Super-
market, T7AR,7ZAQ,74GR,7LR and 7EM are involved in various branches
of electronics, 7Z1E works with joinery etc., 7AI on the land,
TMX seed industry, 7MS and 7ZRS with the Department of Agriculture,
7LH electrical and communications in the railway, 7TT draughting
and 7CF retired, hope I have the lot.
Laurie Tongs 7LT has moved to Melbourne and we hope to hear his
fist from VK3 , best of luck OM.
Bob 7ZRF has been resident in our area for a few weeks and has
been heard from various local shacks., We allways welcome visitors
from other areas.
A series of phone calls from VK3 about the middle of August soon
spread the happy news that Peter 3ZPX (prickly whiskers) had become
a Daddy. Jodie Leah Waterhouse is her name and we congratulate
Robyn and Peter,
The R.D. contest, the best I ever worked, nor have 1 heard so
many considerate operators .
Remarks like "I'1ll move up 5" or '"when you have finished" were
gquite common . During the contest I worked VKO9MC John Mc Culloch
who was stationed at Devonport airport for a time,
We took time off to catech up on news, John hopes to be back in
VK7 next year,
Finally about the Sunday Broadcast. We have never had it so good,
but could the callback on 80 be streamlined.
There are times when one cannot wait possibly 20 minutes to report
in due to other commitments. So a suggestion, first up invite all
cont. page L
QoRaMa _
RULIATIN OF THAE NORTHERN BRANCHES OF THE W,I.A. TAS. DIV. OCT.'73 v
Page 4
stations o eall in including the N.W. then ask each in turn to
report signal strength, at this point the callback offdcer has a
lis% of 1tionn who have received the broadcast,
Now go tarough the list again with news or swalltalk and if anyone
has 4o leave no harm is done, but he has at least reported.
enough %%
Falr enough
Pair .
Til 75e MaxL 7MX
next month
oo
. ats oty oda
PSSRals Als XN
ofe i%s
cR-aTs
¥
On a Sunday morning a couple of weeks ago a rare sight was witnessed
when a 55 £t steel tower was transported from Port Sorell to
mast Devonport on top of a Holden btation sedan.
Nou conternd with that the Lower was lifted over the top of the
house and now rests in the back yard of Graham VK7ZAQ.
A miphty etffort and only some would atitempt such a feat. TAX
FOR_HALE FOR_SALR _FOR_SALH :
Perris car radio (portable) model 18L with power cradle and
aerial (5,00 G.D.Reardon 2 Trent si, Youngtown., Phone L69455
M 20 B unconverted - $25.00 B.R. Waldron 2 Connaught G
62
S2alk ol 3leis
PIDX L00 as new $350.00 ono , or buy FEDX LOO B.d.Morgan
105 Montificre Cr
afs
SRR als sl
R ats ots
150 Vatt meodulator, multi tapped output transformer will match
any
e impedance from 2 - 20K, pair of £788's driven by a KT88 §15.00
Geloso amateur band receiveyr front end $30.00
Jeh.Gelston, 4O Iavender Gr. Phone LL3882
I element quad, triband, 2el. complete and 2el. unassembled
complete with spare bamboo spreaders fully fibre glassed
Aluminium boom 27 inch diam. 225 foot long, also 8 £t boom,
all the above brand new $L0,00
W.Henry 495 Churechill Av , Sandy Bay
Sefesiarionk
Back issues of Amateur Radio, Carl Waldon has donated these to
the Club room fund.
We have complete volumes for the years 1960 through to 1970
also 1971 from January to Qctocber, 1972 January to March.
Your offers to VK7JV C/o po box 1010 Launceston.
Dont forget to state which veolume your offer is fore.
Skooele 2t ok
WANTED WANTED _WANTED_
Valves for a command receiver 12K8 and 125K7, also a spline
connector to sult tuning shafi of above.
G.D.Reardon 2 Trent st , Youngtown. Phone 469455
ale s
o afs se eo
ols olia
O - 30 Pf variable vacuum capacitor 10 KV rating .
J.E.Gelston, 4O Lavender Gr. Phone 43882 i
vksk
Articles of interest for publication in QRM, preferably typed R
but handwritten is quite acceptahle.
Editor QRM, PO BOX 1010 Launceston, 7250
Q.R.Ml - - -
BULLETIN OF THE NORTHERN BRANCHES OF THE W.I.A. TAS. DIV. OCT.'73
N Page 5
AQ6 ORBIT DATA by VK7PF OCT. 13 TO FEB. 28
Times are for the closest N-S and S-~N passes for each day.
Other passes can be heard 1hr 55min earlier and later with 29 degrees
less or greater. For those without a calculator add 1hr 42min to give
the centre of a pass for AM (Z time) and 1hr 12min for PM (2 time%
The satellite should be heard for 20 min. centred on these times.
X indicates the days the satellite is on.
DATE ORBIT DATE ORBIT TIME ©°w | DATE ORBIT DATE ORBIT TIME
Z , Z
OCT DEC NOV JAN
X 13 L5542 19 5381 0934 191 6 L4843 X 12 5682 1028
X 13 L8 19 87 2105 004 6 U8 X 12 87 2003
14 55 X 20 94 1029 205 7 55 13 94 0928
14 61 X 20 5400 2159 017 7 61 13 5700 2058
X 15 67 21 06 0929 190/ X 8 68 X 14 07 1023
X 15 73 21 12 2059 002 X 8 74 X 14 13 2153
16 80 X 22 19 1024 204 9 80 15 19 0923
16 85 X 22 2y 2154 016 9 85 15 2l 1858
17 92 23 %1 0924 188/ X 10 93 16 %2 1018
17 98 23 37 2054 001 X 10 98 16 37 1953
X 18 L4605 X 24 Ly 1019 202 11 4905 X 17 Ll 0918
X 18 11 X 24 50 2149 015 11 11 X 17 50 2048
19 17 25 56 0919 187 X 12 18 18 57 1013
19 23 25 62 2049 000 X 12 2l 18 63 2142
X 20 30 26 69 1014 201 13 30 X 19 69 0912
X 20 35 26 7L 244y 013 13 26 %49, 75 2042
21 L2 X 27 81 0914 186 14 L3 20 82 1007
21 L8 X 27 87 2044 358 10 L9 20 88 2137
X 22 54 28 93 0814 174 X 15 55 X 21 94 1102
X 22 60 28 99 1944 3431 X 15 61 X 21 5800 2037
23 68 X.29 5507 1104 213 16 68 22 07 1002
23 73 X 29 12 2039 357 16 yn 22 13 2132
2l 80 30 19 41004 198 X 17 81 23 20 1057
24 85 30 29 1939 3u2f X 17 86 23 25 2032
X 25 93 X 31 32 1059 212 18 93 X 24 32 0957
X 25 98 X 31 37 2034 356 18 99 X 24 38 2127
26 4705 JAN 1 LL 0959 197! X 419 5006 25 L5 1052
26 10 1 L9 1934 3u1| X 19 11 25 50 2027
X 27 18 2 57 1054 211 20 18 X 26 57 0757
X 27 23 2 62 2029 355 20 24, X 26 63 2122
28 30 X 3 69 0954 196 21 31 27 70 1047
28 25 X 3 74 2124 008 21 36 27 75 2022
X 29 L3 L 82 1048 210/ X 22 L3 X 28 82 0947
X 29 58 L 87 2023 353 X 22 L9 X 28 88 2117
30 55 X 5 94 0948 194 23 56 29 95 1042
30 61 X 5 5600 2118 007 23 61 29 5900 2017
39 68 -6 07 1043 208] X 24 68 30 07 0942
39 73 6 12 2018 352| X 24 74 30 13 2112
NOV 1 80 X 7 19 0943 193 25 81 X 31 20 4037
X 1 85 X 7 2l 1918 337 25 87 X 31 26 2207
2 9% 8 %2 41038 207! X 26 93 FEB 1 32 0937
.2 99 8 38 2208 019 X 26 99 1 38 2107
X 3 LBOS 9 Ly 0938 192 27 5106 X 2 L5 1031
X 3 11 9 50 2108 00L 27 12 X 2 51 2201
L 18 X 10 57 1033 206 28 18 3 57 0931
L 2L, X 10 63 2203 018 28 2l 3 63 2101
X 5 30 14 69 0933 191| X 29 3 X L 70 1026
X 5 36 14 75 2103 003| X 29 37 X L 76 2156
v e eraw
BULLETIN OF THE NORTHERN BRANCHES OF THE W.I.A. TAS. DIV. OCT.'73
Page 6 °
DATE ORBIT DATE ORBIT TIME ©°W | DATE ORBIT DATE ORBIT TIME °w-
7
NOV
30 5143 5 5982 0926 189 12 5294 17 6133
30 5 88 2056 001 12 99 17 38
DEC 1 56 6 95 1021 203] X 13 5306 X 18 45
X 1 62 6 6001 2151 015{ X 13 12 X 18 51
2 68 7 07 0921 188 14 19 19 58
2 T4 £ 13 2051 000 14 24 19 63
X 5 81 8 20 1016 201} X 15 31 20 70
X 3 88 8 27 2341 ou3) X 15 36 20 75
L 93 9 32 0916 186 16 Ly X 21 83
b 99 9 38 2046 359 16 Ly X 21 88
5 5206 10 L5 1011 206 X 17 56 22 5
5 12 10 5 2141 0131 X 17 62 22 6201
X 6 18 X 11 57 0911 185 18 69 X 23 08
X 6 24 X 11 63 2041 358 18 75 X 23 14
7 31 12 70 1006 2l
- T 36 12 75 191
X 8 L2 13 81 0711
X 8 L8 13 87 181
9 56 X 14 95 1001
9 62 X 14 6101 2131
X 10 69 15 08 1056
X 10 74 15 13 2031
11 81 X 16 20 0955
11 87 X 16 26 2125
AO7 Amsat is applying a concentrated effort to have this package
ready for launch early in 1974 to carry on from AOQ6.
A change in frequencies has been made for the 2 to 10 metre repeaters,
the input to be.100 £Khz wide centred on 145.9 Mhz with output
centred on 29.450 Mhz , this is a shift down of 50 Khz.
The second repeater in the satellite will have an input 50 Khz
wide around 432.150 Mhz with the output centred on 145.950 Mhz
The Australian RTTY telemetry system is to be used as well as
the C.W. system used in AQ6.
e3 ok3 o o e e s kR ekSR 3k
WoI.A. 2M BAND PLAN as per the special federal convention
held in Melbourne on September 15 and 16.
INPUT FREQUENCY CHANNEL No USE REPEATER OUTPUT (all new)
0ld CH 1 146.10 L2 Repeater ' 146.70 '
146.15 L3 Repeater 146.75
146.20 Ly Repeater 146.80
146,25 L5 Repeater 146.85
146,30 Le Hepeater 146.90
146.35 L7 Repeater 146.95
0l1d CH 4 146.40 L8 Repeater 147.00
146.45 L9 Simplex
146.50 50 Simplex New recommended national
146,55 51 Simplex
146,60 52 Simplex RTTY channel
146,65 53 Simplex
QLR
BULLATTI OF T NORTIZRY Z0N I3 IA TAS October 73
race ¥
TACHICAL ARTICLE - VKTZBY
2
A 50 1HZ FRECUDICY CCUNTER PART 6
Main Counting Decades
Tn this, the last »nart of this article, we will describe the operation
of the main counting decades, memory, decoders and display. The decade counters
used in this section are 7490's which consists of 4 nmaster-slave Bi-stables
internally inter-connected to »rovide a divide by 5 and divide by 2 counter.
There are also gated direct recet lines to inhibit the count inputs and return
all the outputs to logic 0 or to a BCD count of 9., If the BD input is externally
connected to the A output and the A input receives the incoming count signal
then we have a BCD counter. The truth table for the 7490 decade counter appeared
in PART 4, page 7, for this article.
ggppfier I‘emory: The outputs of the 749C's are fed to quadruple Bi-stable latches
(7475) which are used as a temporary store for binary information from the 7490's
Information which is present at the data inputs (D) is transferred to the Q out-
puts while the clock (3trobe "emory Line) is high. The Q outputs follows the data
inputs for as long as the clock is high, but when the clock goes low this
information is retained at the 7 outputs; it is by this method that we can obtain
a steady display.
Decoders: The decoders used in this counter are BCD to 7 segment (type 7447).
These devices are used to accept the 3CD information from the Bi-stable latches
and decode this information to drive the 7 segment incandescent indicators.
Another feature of these decoders is the provision for causing all indicator
sefimento to be displayed on command to check for burnt out segments (lamp test).
One other provision is for non-significant zero suppression should this be
required.
Readout Tu@gg; The readout tubes used in this counter as already nentioned are
7 segment, 5v filament types, with a left hand decimal point and have an approximate
useage lite of 100,000 hours. The type number of these tubes are DA/133D made by
Antron, ingland, but can now be purchased locally.
The last function to look at is the overflow indication. As the name suggests
it is simply a means of detecting and indicating (via a L.3.D. indicator on the
front panel), when the counting section of the instrument has "gone round the
clock", or filled to maxinunm canacity and returned to the fully reset state. It
may not be immediately apparent why such an indication is desirable, however the
fact is that for high frequency neasurements the counting process may be taking
place in a gating time of 10ps, or even less, a period very much less than the
proverbial "blinking of the eye". t can be seen from this that the counter could
well fill to capacity many times over without the operator being in the least
aware of the situation. Naturally the measurements made in such circumstances
would be very much in error, because the reading finally displayed would simply
represent the pulses which had entered the counter after it had counted to full
capacity and overflowed an unknown number of times. I'ence it can be a déclded
advantage to lmow when the counter has overflowed and indicate immediately when
this condition occurs.
™o, 10 shows the complete circuit of the counting decades.
Oy NI
T
we el e
TULLATIN OF TH3 LORTTIR Z0UES TIA TAS Octobsr 73
page §
13072ICALARPICLI (Cont.)
To explain the operation of the cumplete 4 decades would take too long and is
not necessary, because they all ovnerate in the same manner , and so we will describe
only one. (n the o-ening of the count gate, a series of pulses are apnlied to the
input "A" terminal of the first decade. ©his decade will accent @ of these pulses
and on the arrival of the 10th pulse will pass on to the next decade one pulse, also
on thiz tenth pulse the first decade will automatically reset to zero. This sequence
of events will continue until the count gate closes. At this stage we have a decade
counter that has stopped at a narticular count and stored this count. This stored
count is passed on to the 7475 necmory latch and on command (Strobe pulse) is
released and anplied to the 7 segment decoders. This decode information is used
to connect the appropriate segments of the readout tubes for display of the counter.
As we have now disnlayed the counted signal as explained earlier we must now reset
the decades to zero before re-orening the count gate. “Vhen this occurs, all decade
outputs will so to zero, but as already explaincd in the section on Jounter I'emory
the displayed frequency will remain. Jhen the count gate re-opens the whole
nrocedure will be repeated,
That concludes this article on a digital frequency meter. hile there are
no doubt, many and varied ways to dbuild such an instrument, this article shows the
way in which I have attacked the »nroblem. I hone in some small way I have removed
the mystery that surrounds digital electronics for some reople (including myself),
and that this article shows that it is not as hard to understand, as first thought.
If anyone is considering building this, cr any otler digital equipment, I will be
only too pleased to help out {or confuze) in any way possible.
This article coald not be concluded without expressing my gratitude to a number
of people. Mirst, rny wife DI, for it was she who did all the typing, correcting
of grammar and spelling nistakes (anglish not ny strongest subject at school!l!)
and having to spend many a night by herself while hubby was out in the shack trying
to sort out develoument probl ms. Sccond, to all those AATHITRS whose brains I
nicked while building and testing this instrument. Iast, but not least, to D.7..i.
who (unwittingly) -rovided the test equirment and facilities wiich allowed me to
build and set uo tiie counter when completed.
T3's JORIAD - VHT7ZBY
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BULLETIN OF THE NORTHERN BRANCHES OF THE W.I.A. TAS. DIV, OCT;'73
Page 10
Getting on 6M SSB for this DX season by J.E.Gelston VK72GJ
TVI is the greatest deterrent to using 6M especially when using
antiquated modulation.
This SSB transverter is clean, easy to get going and causes no TVI
on CH1 in the next room even whenrunning a 6/40 to its limit.
The circuit is not original and I must thank 6UP for it as they
used this circuit for a 432Mhz transverter.
The power supply is on the same chassis so that the unit is self
contained except for the 14Mhz drive.
The design is quite flexible and any frequency of SSB drive from
5 -~ 28Mhz can be used providing that the correct crystal oscillator
is selected and L1, L2, L3 are changed accordingly.
For transceive operation a one turn link around L2 and coupled
into the mixer of the converter will be necessary.
Tuning up prcedure. Oscillator drive should be adjusted to
aproximately 1ma by adjusting the coupling link into L3.
Side band drive can be measured by opening S2 and operating the
PTT with full carrier inserted , drive can than be read on a grid
current meter in V2 this should be around 0.25 mA , close S2 and
operate PTT then peak all coils for maximum output, aproximately
2 Watts full carrier.
If you find that the output flattens out as you increase carrier
you are probably overdriving the mixer, if this happens reduce
the audio gain control on your exiter or non linearity will result.
The power supply is self explanatory and(the circuit will be ’
published next month)any old transformer will do, if a 5 volt
winding is not available you could voltage double the 6.3 volt
to obtain your + voltages.
The final may look a little unusual, this is direct from 6UP
and was designed by Mike Farrell VK2AM.
On tune up, make sure you monitor the screen current so that you
dont exceed dissipation with light plate loading.
Plate loading should be increased untill screen current is 8-10mA
resonance also occurs at maximum screen current and as the screen
is more sensitive than the plate to resonance this is the ideal
method to resonate the tank coil,.
The final must be neutralised and shows no sign of instability
once this is done.
The 22K resistor across the grid coil keeps the loading almost
constant on the driver.
Changing the frequency from 52 to 52.5Mhz requires very little
retuning, the plate tuning and loading should not require any
adjustment.
Best of luck, Joe VK7ZGJ
eok okt kR
R RK
Equipment store, the LED's have not been received as yet but
should be here when you read this.
The Sun yagi's have been ready for you for nearly 3 weeks, will
you please collect them from Kevin VK7ZAH , 8 Clarendon st.
any antennae not collected by next meeting will be offered for
sale.
Received in the last month, TIS88, 2N3564,2N3565 and 741 op. ampse.
YIPPEELEEE,SUPER CRUNCH IS HERE.
Q.R. M. Oct. '73
i Page 11
GOLDEN JUBILEE
HAMFEST
1973
EVANDALE
NOVEMBER 24 & 25
The Wireless Institute of Australia, Tasmanian Division wishes
you and your family to attend their Golden Jubilee Hamfest to
be held on 24th and 25th of November,1973.
The programme on Saturday will consist of registration, displays
of home constructed and comaercial equipment, carphone checks,etc.
A Buffet Dinner and Cabaret will be held at the Hamfest site on
Saturday evening. On Sunday transmitter hunts, yes/no hunts,
equipment displays, guessing competitions, Barbecue Lunch, ‘etc.
The success of the Hamfest depends on a large number of people
participating, so we hope to see you at LEvandale on the 24th &
Further information can be obtained from:-
B,Yeoman, Bus.918288 Home 918218,K,Henricks, Bus.321208
Home 469772
Qe.R.M Oct. '73
Page 12
MEMORIAL HALL
EVANDALE SCALE
HoTr TO
REGISTRATION FORM
D
Name Phone Home
Address Bus.
Callsign
Registration Fee
Single $3-50
Family/Double $5-00
Student $2-00
SUNDAY ONLY per adult $1-0C
Please find enclosed cheque for $
I will require Hotel/llotel/Guest House accomodation for
PErsons. Deposit of $5-00 is enclosed.
Accomodation for tents and caravans at Evandale Show Grounds
which are only a short distance from Hamfest site.
PLEASE RETURN, ... P.0.Box 1010, Launceston, TAS 7250
VI 6BLS | V3ggeo2/s
V2. ggeazs
QCTOBER 1973
14 M=
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Page 13
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all feedthroughs .001 mf .—l
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.+ A
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rmer
s45 s5:66.
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% yineh alumin
413 J
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Athol Lawes Electrics
135 HOBART ROAD,
KINGS MEADOVS, LAUNCESTON o
Telephone 443119
TRY US FOR YOUR NEXT APPLYAICE
YOU WILli FIND IT FEASY ON YOUR POCKET § & §
HORWIND
ELECTRICAL ENGINEERS
SPECIALISING IN MOTOR REWINDING AND ASSOCIATED WORK
27 SUNCREST PLACE, RAVENSWOOD
TELEPHONE 391515
\§A9°¢