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1970sDocument1976QRM Vol 6

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C. iy |

Bulletin issued by the Northern P.O. Box 1010
Branches of the Wireless Institute Launceston
of Australia, Tas. Division. Tas. 7250

April 1976
Vol.6 No 1

Registered at GPO Hobart
for transmission by post Price 40¢
as a periodical. Category B.

MEETINGS .

April 9th Northern Branch..State Emergency Servic€ rooms
(g

Charles St. 8 p.m.

April 13th North West Branch
Lakins Hall, Ulverstone. 8 p.m.

Y.R.C.S. MEETINGS

April 10th . .
April 24th Kings Meadows High School. 10 a.m. ‘

April 3rd Lakins Hall, Ulverstone, 2 p.m. "
May 1st
April 17th Easter, therefore no YRCS class -

CONTESTS

April 24/25th VERON Netherlands
Bermuda, phone W s

May 1/2nd Helvetia
Bermuda, CW
April 1976 Q.R.M. Page 2

First I would like to thank Graeme VK7ZGG for editing
QRM last year, also thanks to all who assisted Graeme, I hope

O-
I can count on your support for the next 12 months.
It seems that 35% of last years members have as yet
not paid their subs to the WIA, I am sure that most have
simply forgotten to do so, considering there were no reminders
sent out. Please send your dues NOW! if you have mislaid the
account send your cheque with a note advising them of this.
Remember you can not be a member of a branch unless you are
a WIA member.
John VK7JV
Kk ke Kk gkokokokok kok kok K

The anual general meeting of the Northern Branch was
held on Friday 12th March at the S.E.S. rooms. The meeting was
attended by 22 full members and 10 associate members.
Officers elected were:

President Brian Yeoman VK7ZBY
Vice Presidents Lindsay Dowl VK7ZLD
' Mike Wilson VK7ZWW
Treasurer Peter Dowde VK7PD
Equipment officer Daniel Apted VK7ZDA
ORM Editor John van Staveren VK7JV
Lecture officer Wally Morphett VK7ZWX
QSL manager Col Wright VK7LZ
Refreshments Officers Mark Corbould VK7ZMC
Malcolm Weldon VK7ZMM
Branch WICEN coordinator Mike Wilson VK7ZWW
Secretary, as there were no acceptances at the meeting it is left
to the executive committee to make the appointment. ° g

The general meeting followed the AGM. There was very {
little business discussed. As Roger Greenwood was delayed in -
VK3 the auction of his equipment was postponed untill the next
meeting.
The executive moved that persons seeking membership
should accompany their application where possible, this was
discussed at length and passed.
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AOCP, AOLCP, NOVICE and C.W. classes.
The Northern Branch has started these classes under the
leadership of Brian VK7ZBY and Ed VK7HE.
The classes are to be held every Monday evening at
Kings Meadows High School, block B, room 35, and will commence
at 7.30 p.m. with 30 minutes of CW, followed by radio theory
for 2 hours.
It is proposed to use the ARRL handbook as text, if
you haven't got one they can be supplied at a modest price.
Anyone interested (including non WIA members) are
invited to attend or for further information contact;
Brian Yeoman phone, Work 918288 or Home 918218
Ed Hewens Phone, Work 22251 or Home 391863

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CeWw
April 1976 Q.R.M, Page 3

The Anual General Meeting of the North West Branch was held
on the 9th of March at Lakins Hall, Ulverstone.
The meeting was poorly attended with only 5 A grade,
and 10 associate members and visitors, which is very disappointing
for a AGM when a good attendance is required. A vote of thanks
is extended to Graham VK7ZAQ for his service over the past years.
The president was in the chair, as the secretary was
absent Max VK7MX deputised.
Officerseleted were;
President Ian Ellings VK7ZIE
Vice Presidents Winston Nickols VK7EM
Ken Hancock VK7KH
Secretary Max Ives VK7MX
Assistant Secretary Sid Medford VK7SF
Treasurer Max Ives VK7MX
QSL Officer Harold Hancock VK7MZ
Activities Officers Ken Hancock VK7KH
- Clem Burtt
Broadcast Officer Ian Ellings VK7ZIE
Branch correspondents
Bulletin Max Ives VK7MX
Q.R.M. Lindsay Johnson
Equipment store Officer Adrian Sherriff VK7ZAT
WICEN Coordinator Bob Simpson VK7ZJS
Repeater and Beacon
Committee Graham Rand VK7ZAQ
Winston Nickols VK7EM
Adrian Sherriff VK7ZAT
Ivan Lamberton
Wayne Gibson '
The AGM closed and a short General meeting was held.
Wok de vk v kv sk vk ke sk ke keokokok keokok ke kRok Lindsay Johnson

North West Branch, Presidents Report.
Gentlemen, it is with pleasure that I present a report
of the Branches activities over the last 9 months which now
brings our annual meeting to coincide with the other 2 Branches.
In July a beacon and repeater committee was formed and
has since erected a radio shack at Lonah to house a 70cm beacon
and a 2 metre repeater, both of which are in final stages of
completion., We anticipate making on air tests in the near future.
Y.R.C.S. is in full swing after the christmas break with
an average attendance of 10 members. This has been run almost
entirely by Graham VK7ZAQ, Adrian VK7ZAT and associate Ivan
Lamberton. A membership drive has already commenced to at
least double this number.
The cancellation of earlier AOCP and Novice licence
examinations has restricted our growth of operative members
although we are hopeful of an increase from the February
examinations. We have also gained an import from Mt.Morgan in
Kirby VK4ZGR. Membership has otherwise remained stable with an
average attendance of 18 at monthly meetings.
The Divisional Hamfest at Richmond which was extremely
dissapointing, was attended by 6 members and their XYL's.
April 1976 Q.R.M. Page 4

The equipment store has again helped to meet the needs
of most members, the efforts of which are shown in the financial
statement.
Again we participated in the Jamboree of the air and
the weekly Sunday Broadcast, my thanks to all those concerned.
WICEN has been progressing steadily under the services of
Bob VK7ZJS as coordinator,
Finally I would like to thank all office bearers and
members who have contributed to the success of the Branch during
my term of office.
Ian Ellings
) kK Kk Kk okokok Kk k keok sk ok k%

Mini Hamfest report.

The annual North and North West Mini Hamfest was held
at Port Sorrel on Sunday the 14th of March and was very
attended by some 40 odd members, XYL's and harmonics. A big
thanks must go to the organizers and all concerned with the
staging of this annual event. The big sporting attraction was
the annual cricket match, won by, naturally, the North West.
With their superior batting, bowling and nippy fielding. At
the conclusion of the game, the trophy was to be presented
to the winners, but someone forgot to bring it, so now it will
be presented at the annual dinner on the 3rd of April.
Various raffles were run during the day and some
handy prizes were won. Lyn, VK7ZIE's XYL, won a pop rivet set,
which we hear was later conned off her by a cunning old
gooseberry grower along the road. A set of door chimes was
won by a hard of hearing Northern member. A screw driver set
also went to the North. But we think the best one was a nice
savoury dish won by a local member, who has since obtained a
frilly little apron and can not be removed from the kitchen.
The manner in which the children behaved was really
first class, this was later explained when some of them were
seen being loaded into a big van and driven off with little
eyes peering out through, and white knuckles clutching BIG
IRON BARS.

Another member said he was tosick to come but turned up
and took out the man of the match award. The weather was hot
and humid and the flies were very thick, one member was
overheard telling another, a sure way of keeping them of your
face. If anyone is interested in this method just ring or
write me personally and I will be only to happy to them the
sure qure.
Joe VK7ZGJ very ably presented the prizes, organized
the raffle and even returned the empty cordial bottles, good
old Joe.
Lindsay Johnson
It is good to hear that Ellis VK7WA is back on the air again
after such a long absence of some thirteen years, he can be
heard nearly every night on 2 metres, talking to Charlie VK7CF
or Ken VK7KH, Last week he was heard working a VK3, Ellis is
using a Ken KP202 with a 10 watt amplifier and a skeleton slot.
He is also very active on HF, using a FTI10lE into a G5RV.
April 1976 Q.R.M. Page 5

LADIES PAGE

COOKERY AND METRIC CONVERSION

There are three different systems of units of measurements
being used in the world today. Europeans ( and a large part of the
rest of the worlds population ) use only the metric system of
weight measures. Australia, the United Kingdom and a large part
of the old British Commonwealth have used the Imperial system
of weights and measures. The United States has the same system
of weights (avoirdupois) as Australia is discarding,but different
measures of fluid volume.
The U.S.A. is not yet officially committed to metric
conversion, but Australia, the U.K., New Zealand, Canada and
South Africa are in the process of changing to the sole use
of the metric system.
There has been a trend in cookery in recent years toward
the formulation of recipes in terms of volume ingredients only
(cup measurements). This trend recognises the fact that many
homes are not equiped with kitchen scales and that good simple
utensils for measuring volume are cheaper and therefore more
willingly purchased than are good kitchen scales. !

SIZES OF AUSTRALIAN STANDARD MEASURES

01d Standard New Standard

Cup 8 fl. oz. (227 ml)
Tablespoon 1/2 £1. oz. (20 ml)
Teaspoon 1/8 fl1. oz. (3.6 ml)

It will be noted that there is no Australian standard dessert-
spoon.
Since there is no simple relationship between units
of the metric and imperial system, DIRECT CONVERSION IS
UNREALISTIC. To demonstrate this consider the list of
ingredients for a cheese souffle in which the conversion has
been made using the approximate conversion factors,
1 oz. = 28.3 g, 1 fl.oz. = 28,4 ml, 1 pt. = 568 ml.,
1 cup = 227.3 ml.
continued next page
* kok kk

Girls, who would be interested in starting a '"swop" collumn
on our page 2 We must all have something we would like to swop.
Husband's gear, Him or the Kids are OUT.
Ann, XYL 7NR
April 1976 Q.R.M. Page 6

Ingredients Equivalent Metric

Butter 4 oz. 113.6 g
Flour % cup 113.6 g
Mi 1k 1 pt 568 ml
Salt % teaspoon ; % teaspoon
Egas 4 ! 4
Grated Parmesan Cheese 1Y% cup 283.8 ml

This conversion is inappropriate since the dquantities
could not be measured in most kitchens.

The most important things which must be retained when
converting a recipe are the ratio of ingredients and within a
reasonable limit, the overall size of the original recipe.
There are several methods of converting existing recipes,
each, if consistently applied, is satisfactory to one extend or
another, Taking all things into account, the method of conver-
ting recipes that is considered most satisfactory is based on
the following relationships:
8 fl. oz. (1 cup) is replaced by 250 ml (1 metric cup)
8 oz. is replaced by 250 g
Although the yield is slightly greater (about 10%) the propor-
tions remain the same as in the original recipe. Existing
baking pans can still be used.
By using this method virtually every recipe can be
converted to metric and similar results should be obtained as
from the original recipe. There is only one way of guaranteeing
success - BYTESTING THE CONVERTED RECIPE AND making any
necessary adjustments.
more next month
Annette, XYL VK7KK
% dk K Kk ok kR Kk %k Kk sk %k ok ke Kk ko kK

Hi girls,
Hallo again, to John VK7JV, and congratulations,he has
his brain child back. Let us hope the pumpkins don't mind.
Personally I don't think that they will, because they have their
own room, bed and all, John seems to do a good job no matter
what he tries. Of course wife Joy had a pretty big hand in this
too. Next time though they want to try a bigger garden,or
smaller vegies. Our family has had some samples, and they were
beautiful.
Getting back to ORM. It is nice to know it hasn't lost
a printer. I think the members of the club were a little worried,
and I have just realised something, I haven't thanked Graeme
VK7Z2GG for coping with it last year, as well as his school work
and pupils. Forgive me Graeme, and thank you.
I hope that John is still going to keep the Tl.adies Page
in QRM, as it is nice to know that we are included, but of course
we have to give him something to print on our page.
Well I have run out of things to say, but T have a small
favour to ask, ladies, if you have a size 14 WHITE top, summer
jumper or blouse that isn't see-through and has a sleeve of
some sort, our Judi is having kittens trying to find one, the
that she has found are far to dear for what they are. Please
ring 272928 if any of you can help her.
Sincerely, Ann, 7NR's XYL.
April 1976 Q.R.M. Page 7

HF notes by Frank Beech VK7BC

During the callback following a recent Sunday morning
broadcast, pleasure was expressed by some at hearing Den VK7DK
on 80 metres, well, he can get even lower in frequency, try the
1.8 Mhz band during the evenings and you will hear Den and
Col VK7LZ enjoying themselves working around the Pacific and
VK where DX can be a real challenge.
Quite a few VK7 stations took part in the BERU contest
this year despite the Test Match down the coast, conditions
~ could have been better but some good DX was available. Ed VK7HE
was on the receiving end of some very good reports with his
X beam. I lost almost the last two hours when some LID tried
to break an HEC pole and plunged the West Tamar into darkness,
fortunately only the vehicle and wiring was damaged. During
this contest, as always with an eye open for a new country
I heard AC5PPS, ah that must be up near Tensing's hunting
ground I thought, hasten or you will lose him in the dogpile,
called and received 449 with QTH Texas. Vowed to look back
and make notes of the multitude of Prefixes being churned out.
VX9 Sable Island is still active, though will be hard
to get from here, aim at the Grand Banks off VOl.
A35AF, Kazu is still active from Tonga, QSL via WA4NRE,
for three successive nights he could be worked on 7 Mhz around
09.30Z2 but take care when netting as he is only juuuuust in
the band.
10 metres was closely watched over the 13/14th March
and was found to be open most of the daylight hours to JA, with
some good signals, the JA's had a path into South America for
a period of three hours. ’

15 metres, has been open around 22.00Z to the North and
Noreast, to JA, VE7, VS6,VR1l and W6, signals up to 589 and 59
at times.
20 metres, this band has been quite good at times with
DX available almost around the clock on CW.
40 metres has been the best band lately for solid DX
work, with good paths into Europe and the Eastern USA,
80 metres likewise with 59 signals from Europe at times.
160 metres, as mentioned earlier has begun to open up,
with Den and probably Col by now working VR1AA on CW, VK's 2,
3,4, and 5's have been logged as well as ZL's. This is a very
interesting band to try out, but be patient as the DX usually
comes and goes quickly, and a long call can sometimes miss it.
A good time is when one of the stations is working during
sunrise or sunset. Look to your earthing system as well as the
wire in the wind.
VK200/LH has been active this month and has been in
great demand by locals as well as DX, I ignored a call from
VK200/LH for about 5 minutes untill I realised he wasn't left
handed Hi, VK2FT/IH added to the fun.
No folks, they are not drilling for oil in Trevallyn
it's only Reg's tower standing up all shiny and bright.
Col has been working the Aland Islands, which are quite
rare at this time of year as the Finns are usually found only
in the sauna baths at this time. d
e
VK7BC
April 1976 Q.R.M. Page 8

VHF notes by Joe Gelston VK7ZGJ

Tec my knowledge 6 metres has not been open this month,
although ZL TV was watchable on two occasions. Activity is
almost non existant locally, with Kevin VK7ZAH studying and
Daniel VK7ZDA in the process of shifting again.
I have called CQ on 52.050 on several occasions but
with no reply, so one can only hope for something better next
month.
The 6 metre beacon is still awaiting PMG approval for
its erection on 7EX hill, we hope that this will be in the
near future.
2 metres has been a little more active with a couple
of openings to VK3, Kevin VK7ZAH was the only station on SSB
operational at the time.
Activity on 2 metres should improve as the year
progresses as there are two more stations, Frank VK7BC and
Gordon VK7GW, constructing 2 metre transverters at the present
time.
Sorry for the lack of news, I hope to have more for
you next month.
73, de Joe VK7ZGJ
dokok kokokok kokokokokok

FOR SALE ——e——— FOR SALE —me—- FOR SALE ———-- FOR SALE ———ee-

Eddystone EC10 MK ITI communication receiver (solid state)
5 bands covering from 500 Kc - 30 Mhz. In mint condition.
Price $160. Contact Bill Carter VK7AK, 11 Lansdown PL.
or Phone, 622035, after hours 622479
kkhkkkhkkkkkhkkkkk

WANTED - — e e— WANTED —— e WANTED — e WANTED ———————

Windmill generators, types, Quirk windlight, Web windlight,
Davey Dunlight, 12, 24, 32, 48, 60, 110 Volts AC or DC etc.
parts or info to locate bits and pieces.

Mains regulator or Stablac, 240 in (180 - 280 in), 230 or
240 Volt output regulated up to 2KVA rating considered, valve
or solid state regulation. All particulars and enquires to:
Daniel Apted VK7ZDA, P.O. Box 512 Launceston 7250
khkhkkhkkkhkhkhkhkhkkhkhkkk*k

NORTHERN BRANCH SUBSCRIPTIONS ARE NOW DUE.

The rate is the same as last year $2.50. If you are not going
to be at the next meeting please send your cheque or money order
to the branch treasurer at P.O. Box 1010 Launceston.
The new mailing list for ORM will be made up this month, so dont
miss out. Please include your name and address.
April 1976 Q.R.M. Page 9

NORTHERN BRANCH W.I.A. TASMANTAN DIVISTON

REVENUE STATEMENT FOR YEAR ENDING FEBRUARY 28, 1976.

Sales $12,283.18

Less Cost of Sales
Opening Stock 1/3/75 $698.17
Purchases 12,136.62
12,834.79
Less Closing Stock 28/2/76 1,313.95
11,520.84
GROSS PROFIT 762.34

Add Other Income
Q.R.M.
Subs
Annual Dinner
Raffles
Fed. Donation
Interest
737.24
1,499.58
Less Expenses
Soft Drinks 8.74
P.0. Box 8.00
Q.R.M. 50.00
W.I.A. Tas. Division 350.60
Annual Dinner 304.50
Directory Entries 29.50
Q.S.L. Bureau 8.60
Suppers 22.93
Refund Clubroom Account 108.15
Stationery 8.00
Floral tributes 13.00
P.M.G. 32.00
State Library 5.35
Petty Cash 30.00
Cheque Books 12.80
Refunds 14.00
N.W. Branch Donation 50.00
Repeater Expenses 67.00
1,123.17
NET SURPLUS $376.41

BALANCE SHEET AS AT FEBRUARY 28, 1976.

Liabilities Assets

Acc. Funds $2,295.19 Stock $1,313.95
Net Profit 376.41 L.B.S. 1,357.65
$2,671.60 $2,671.60
CLUBROOM ACCOUNT

Balance 1/3/75 $1,765.46
Interest Received 162.48
Transfer ex Trading Account 108.15
Fund Raising 33.40
Balance 28/2/76 $2,069.49
»

AUDITED & FOUND CORRECT. .
B.C.PROVERBS. A.A.S.A., F.C.I.S.
L
,5}712}( Feol

April 1976 Q.R.M. ; Page 10

- IMPEDANCE MATCHING OF TRANSMISSION LINES TO RESISTIVE LOADS.

I+ is a well known fact that maximum power transfer
occurs when the source impedance (Zs) equals the load impedance (Z1)
The same situation when transmitter output Z = transmission line Z =
antenna load Z.

In the example given maximum transfer of power occurs
(no tuned lines) when Zs= Zo= Z1.
Propagation of energy along a transmission line however does
present some problems for us amateurs. We are limited to
restricted values of Zo (eg. 52 and 72 Ohm) in cables and
of course the value of Z1 is often nothing like the value of Zo.
So here is a simple solution to overcoming the problem with
very little power loss. Note this circuit uses no complex
impedance matching devices.
Example below.

<
Zs 2 z1
SZST-g

721 antenna radiation resistance = 41 Ohm *
Zo impedance = 52 Ohm
Zs impedance = 52 Ohm
R resistance = 11 Ohm

By inserting an 11 Ohm resistor in series with Z1 the
problem is solved - Zs = Zo = Z1, A small power loss will be
developed across R but if the system is not used at high power
levels the loss should not be too great.
It is simple when you think about it Zs = Zo = Z1 and
maximum power 1s transferred. This is rule of thumb!
This method should be very useful for matching VHF
% wave whip antennae in mobile use, VHF power amps are usually
transistorised and power transistors do not like high SWR.
In practice the %4 wave whip, base impedance is usually
around 20 Ohm, the easiest method is to insert a SWR bridge
in the line and a potentiometer between the feedline and the
antenna, a carbon pot of about 50 Ohm is best although a
wire wound pot may be used but do not foroet to cancel the
inductance of the pot by adding a small capacitor in parallel,
about 30pf should do the job. When minimum SWR is achieved,
measure the resistance and replace with a fixed value of R.

continued next month
April 1976 Q.R.M. Page 11

A method of switching high power, power supplies to reduce high
voltage transients at both switch on and switch off, to increase
reliability of solid state rectifiers.

RL2-3+4
."

RL1-6+7

230 Volt

Switch on sequence.
1) The PTT switch operates RL1 via D1, this closes contacts
RL1-6+7 which applies 230 VAC to Tl via current limiting
resistor R1
2) Contacts RL1-3+4 operate RL2 via D2, this closes contacts
RL2-6+7 bypassing R1 and applying full supply voltage to Tl.
3) Contacts RL2-3+4 hold the coil of RL1 operated

Switch off sequence.
1) When PTT is released RL2 opens removing the bypass from
R1 and applies a load R2 across the primary of T1.
2) Contacts RL2-3+4 open releasing RL1 and so removing the
supply from T1,
3) RL1 is always the last relay to release.

Col Perger VK7KW
April 1976 Q.R.M. Page 12
Northern Branch Equipment store.

Resistors P
SeResse Coil Formers
L
% and % Wazt 100 2 58¢ Neosid single bases 10¢
ca aoitorgwr ‘ Neosid double bases 11¢
=2pdclrols F16 slugs, 2-12 Mhz 7¢
Ceramics 8¢ F29 slugs, 12-200 Mhz T¢
Trimmer 1.5 - 12 pf 20¢ Neosid formers 8¢
I Single cans 10¢
Iransistors Dougle cans 12¢
we l6¢ CrystalSockets
BC109 20¢ Type D 25¢
BC178 25¢ Type K 30¢
/

2N3866 90¢ Belling & Lee, plug 22¢
2N3819 (MPF102) FET 65¢ socket 35¢
2N5245 (TIS88) FET 80¢ PCB socket 30¢
MPF121 FET 75¢ VHF plug $1.20
Diodes socket $1.20
e BNC plug $1.30
EM404 400V, 1 Amo 20¢ socket $1.30
EM410 1000V, 1 Amp 22¢ Coax reducers RG58 35¢
1N914 10¢ ur70 35¢
HPZSOQ 20¢ VHF RF chokes, 6 holes
9.1Volt |Zener
6.2Volt Zener
30¢
30¢
10mm long 9 x 6mm dia. ‘ 29¢
1.C's Ferrite ring cores Grad.
_—_= 4Cc6, 6mm ID, 9mm OD,
LM380 $2.50 good up to 50Mhz 40¢
ﬁg%géo $3.75 Screening Beads 3B ’
$1.25 Suppres RF .interference 7¢
MC1454 $5.00 pp : ’
IM342 5,6,8,12 and E.A., SWR bridge cicuit
15 Volt, 1 2Amp Reg. $1.62 board, 50 or 75 Ohm $1.45
and many other I.C's Circuit board for LM380 75¢
Any I.C. not in stock
can be obtained within Fibre Glass circuit board
blanks, single sided per
2 weeks. square foot $2.50
Molex (pins) I.C sockets double sided per sq.ft. $3.00
will be in soon Sizes, 12"Xe" & 12"X12"

Meters, 200uA movement, scale 0-8, as used in tape recorders
Large $1.00 Small $0.80
Transistor radio Pot/Switch 3¢
Cross Hatch and Dot generator kits, case not included $21.00
Packets of 100 transistors, unmarked and untested $1.20
Packets of 100 diodes, unmarked and untested $1.20
We can also obtain all types of HF tranceivers, all VHF
tranceivers, transverters and converters, Aerials, Crystals,
Toyo crystal filters, books, subscriptions to all amateur type
magazines, call books and log books.
For the next month or three Ed VK7HE will handle all equipment
store sales, orders may still be placed with Daniel VK7ZDA.
April 1976 Q.R.M, Page 13

_SEMICONDUCTOR _ CONNECTIONS
o

NOTE: All connections shown from LEGEND
lead or wiring side. ; K- cathode Gl- gate one
C- collector G2~ gate two
REMEMBER : B- base Sh- shield
WITH TRANSISTORS USING ! E- emitter
TRIANGULAR LEAD CONFIGURATION i D- drain
WHEN APEX IS UP THE COLLECTOR } A~ anode
IS ON THE RIGHT. i S~ source

1
Diodes general & Zener diodes SCR UJT & PUT

,/P
A A 'Banded glass G B1

P RN
'diodes have ! by A E B2
'K marked with ! 1K B2
thloker band
K K eg. 1N914
AD BY OA Note. Zeners normally B2 Bl

~Qw
EM BZX have voltage indication.
SD ¢ B

TO-18 TO-39 | TO-5,105,106 TO-72 i SOT-25 S0T-25/1

09 PTT3564 2N3564
D) 2 |= BF115
E B C
.
BC108 2N3565 BF184 | BC157/8/9 BF184/5/6
BC109 etc. BC147/8/9

01d Style &Jap

metal case

mn 'Y E C B
E BC

AS- series BF200
2N5192 BF180/1/2

/bs%:}
C 04 G%
“PT 3 01 89:)/
O\Cg

14 Lead 16 Lead “LF
Dual inline Dual Inline MC1454
MC1550
&1. GUNN -vLTD.
50 Brisbane [ ’-J
cet, qu““ sto
M9, Yy DD T A
L'\JLCI‘v‘Lu' Y & 2

DOMESTIC & BUILDERS HARDWARE
MARINE & PLUMBIIG SUFPPLIES
PAINT & TOQOLS

SEDDON PRESS
35A GRANVILLE STREET, LalnC¢iSTON., 7250
Telerhone 31 ©191
for all your printing
Business and Personal
QSL cards **%#*

MORWIND
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ELECTRICAL ENGINEERS

SPECTALISING IN MOTOR REWINDING AND ASSOCIATED WORK

27 SUNCREST PLACE, RAVENSWOOD

TELEPHONE 391515

\tholLawes Electrics
135 HOBART ROAD, KINGS MEADOWS, PHONE 444710

FOR ALL ELECTRICAL APPLIANCES, SPECIALISTS IN,

HI-FI SOUND SYSTEMS
CAR RADIO AND STEREO
SEE US FOR A BETTER DEAL, WE SERVICE ALL WE SELL.
& O