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September 1984

Beechlog
 
The on-line magazine of the Burnham Beeches Radio Club.
INDEX AND ACKNOWLEDGEMENTS

ISSUE No.11 SEPTEMBER 1984


Page 1................Index
Page 2................From the Chair
Page 3................News & Views
Page 3................For Sale
Page 4................Backtrack
Page 4................Library
Page 5................Dry-Fit Charger
Page 6................Tech-Ed's Notes
Page 6................Club Equipment
Page 7................Diary
Page 8................Membership List
Page 9................Membership Form




Editor................Dave Chislett G4XDW
Technical Editor......Gerry Thorn G8VNA
Printer...............Dave Ayres G6GBC

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B.B.R.C. COMMITTEE

Chairman..............Dave Bentley G6LKZ
Secretary.............Paul Robinson G6DVC
Treasurer.............Lynas Newton G6LYN
Member................Mike Brown G4RAA
Member................Martin Heaver G4WSW


Library...............Dave Bentley G6LKZ
Club Equipment........Dave Bentley G6LKZ

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FROM THE CHAIR

The time has come again for me to put pen to paper for this
quarter's Beechlog. I do it this time with a sense of pride. The
club pleasantly surprised me at the Home Counties Rally in July by
rallying round and helping in a great many aspects of the event.
The attendance this year was greatly improved and there could be
the possibility of the club's receiving a boost to its funds as a
result of the event. While on the subject of the rally I would like
to thank Dave G4XDW and Dave G4XOW for their support with the rally
and on the committee. While on the subject of thanks I would like
to thank Martin G4WSW for organising and running the special events
station for the Scouts.

As we move into the second quarter of this committee we do so with
a new secretary Paul G6DVC. Unfortunately Dianna G4MVV had to
resign due to pressure of work, but while she was on the committee
she was one of the hardest and conscientious workers; many thanks
Dianna.

Now I look forward to future events. The DX picnic on the 8th & 9th
of September is a date not to be missed. Last year, in spite of the
weather, it was very enjoyable. I hope this year's is as good. The
time has come when I ask you to put your names down for the annual
dinner (details elsewhere ED): your support of this function is
necessary to keep it going. Another event planned is the visit to
the club of G5RV who invented the famous aerial. (for dates see
diary ED).

As a parting thought, the treasure hunt, which was scheduled for
the 8th of July and cancelled, has been planned for Sunday 23rd of
September. The entry fee will be 50p per club member. Please
support it this time as a lot of time has been spent preparing it.
Finally, remember the Open Day on October 6th; it is our chance to
show the public that Tony Hancock was wrong about us!

73's Dave G6LKZ

NEWS AND VIEWS

To start this month, two pieces of very good news. Our Chairman
G6LKZ has become a Dad again. Janet gave birth to a boy weighing in
at over 11lbs; they have named him Bob. Not to be out done, Sue,
XYL of Ted G4XOE, produced a Daughter 6lbs 13oz called Lorraine. I
know that you all will join me in congratulating them and hope that
the babies will soon be sleeping through the nights.

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The Foxhunt held on the 6th August proved a difficult fox to find.
The winner however was our Chairman Dave G6LKZ. Second was G4XOW
assisted or otherwise by G4XDW.

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The Christmas dinner this year is to be held on the 10th December
at the Palm Suite Restaurant. Booking forms will be available soon.
As last year the Restaurant requires a firm booking of numbers by
October. The ATV group has been asked to join in as in previous
years but of course club members have priority when booking
(maximum numbers 52 people) so please book early!

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By the time this is printed the editor should be online to the
Prestel Computer and other databases and mailboxes available over
British Telecom. In future it should be possible for all you
out there with micros and modems to send in your copy for the
magazine over BT! Next issue I hope to be able to give more details
and of course tell you if it's worth it.

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Heard on the Club Net........Well I can copy everybody in the net
at 5 and 9 except those in the noise!

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ITEMS FOR SALE

FT230 2mtr FM 25 Watt Transceiver. Less than 1 year old #160

Trio/Kenwood 9130 2mtr Multimode Transceiver. #390 ono

For further details Tony G4LQD Telephone. Farnham Common 3286



BACKTRACK

In January 1968 a club constitution was being drawn up so that the
club could apply for RSGB affiliation. Local pirates were a problem
but on the positive side, a new contest site on Stoke Common had
been found. Annual subs in 1968 were #1.0s.0d.

Little of note is reported over the next three years, although the
club continued to enter various contests. In September 1969, the
club held a special events station for the Scouts ( Hedgerley, I
think ) with the call GB2SAS.

In 1972, lots of new ideas were being generated. A catering manager
( with free club membership ) was elected. Raffles were introduced
to generate funds, the prizes were to be "small pieces of equipment
donated by members." And a photographer was appointed ( G8CXW ) to
keep a record of club events and a club scrap-book. Does anyone
know anything about that?

And to show how history repeats itself, the 2mtr club net was moved
to Monday evenings, and a ' mobile picnic ' was planned for the
Summer.

So all looked very positive and rosy. But what happened next? Wait
'til next Beechlog to find out.

Eileen G6EIL

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CLUB LIBRARY

HF Antennas for all Locations Moxon
1981 Call Book RSGB
1984 Call Book RSGB
Radio communications Handbook RSGB
R.S Components Cataloque
Confidential Frequency List
+Supplement



A DRY-FIT CHARGER

Recently I acquired a portable video recorder which contained a
Dry-Fit Battery. The charging circuit was contained within the
Tuner Timer which normally resided at the house. It soon became
clear that a suitable charger to carry around would be useful, an
added bonus would be the ability to run the recorder from the
mains.

Dry-Fit batteries are becoming very common these days in equipment
that requires high current for short periods. They are similar to
the lead acid type found under the bonnet of cars, but do not
require topping up and can be used at all angles even upside down.

Dry-Fits unlike ni-cads which require a constant current charge,
require a constant voltage charge with only an initial limit on
current. The maximum voltage for a 12volt battery is 13.8volts:
this should be maintained very closely, as over or under charging
will result.

The circuit shown makes use of a variable voltage regulator, the
output voltage is defined by R1 and R2. By changing R2 the voltage
can be changed from 13.8 for charging to 12 for operating the
recorder. R3 limits the initial charging current and is switched
out for 12volt operation. The voltage regulator should be mounted
on a heatsink and R3 should be a wirewound resistor. In the
prototype, I used a flashing LED to indicate that I was switched to
charging.

While charging keep the battery in a well ventilated area and
upright and do not obstruct the vents.

Dave G4XDW


TECHS ED's NOTES.

Not very much to report on the amateur radio side in this edition
but quite a lot on the building front.

The main work (bricks and mortar) is now complete, and I have
started to fit out and decorate the kitchen. There is still a lot
to be done in what will eventually be the dining room i.e. walls to
be knocked down, plaster from existing walls to be removed, doors
to be painted etc; The reason that the work has taken longer than
we expected is the 'PLUMBING' due to the fact that lots of time
has been spent putting to rights the original central heating
system, which was put in by a 'FRIEND'!!! who was (is - heaven
forbid!) supposed to be a plumber. The kitchen units proved to be
more difficult to install than originally anticipated.
Considerable time was also spent on the outside lights, we finally
decided on Thorn low consumption fluorescent tubes in a round light
fitting (100watts light output for 18watts consumption). Finally I
wonder if anyone has seen the new AOR 2001 scanning receiver,from
the details I have read this must be just about the ultimate in
scanning receivers.

Gerry G8VNA

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CLUB EQUIPMENT

1. 25ft Telescopic Mast/base/guys & pegs (G4XGD)
2. J-Beam 2mtr+70cms Beam/cables (G4XGD)
3. 4x23 ele JVL 23cms Beams (G4XDW)
4. Tent+Awning pegs (G4XOW)
5. G5RV HF Aerial/cable (G4XGD)
6. AM. HF Tranceiver 'valves req' (G4XDW)

B.B.R.C. Diary of Events 1984



16th Jan G4HNL. Worked all Britain Award
6th Feb G8JMP. Airport Radio
20th Feb Surplus Equipment Sale
5th Mar A.G.M.
19thMar Computer Forum
24thMar VHF Convention (Sandown Park)
2nd Apr 23cms ATV G8LES
8th Apr(Sunday) FoxHunt
16thApr
28/29thApr RSGB Exhibition (Birmingham)
30th Apr Visit to Radio 210(12people max)
7th May Amtor/RTTY G3NRW (Ian Wade)
21st May
4th Jun FoxHunt
18th Jun
24th Jun Mobile Rally (Longleat)
2nd Jul
8th Jul(Sunday) Treasure Hunt
16th Jul
22nd Jul McMicheal(Home Counties Rally)
6th Aug FoxHunt
12thAug(Sunday)ClubContest
20thAug Meeting for Slough Day

25th Aug SLOUGH DAY
3rd Sep SurplusEquipmentSale
8/9thSep(W/END) DX Picnic(Field Day)
17thSep Foxhunt (G6LKZ Fox)
1st Oct Talk By R.S.G.B.
6thOct(Saturday) Open Day
15thOct Aerials by G5RV
28thOct(Sunday) FoxHunt
5th Nov Could be Bonfire
19th Nov AndorraExpedition G4NNS
3rd Dec TBA
10th Dec Club Christmas Dinner
17th Dec TBA


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MEMBERSHIP LIST

001 Eileen Chislett G6EIL Sl.21896
002 Dave Chislett G4XDW Sl.21896
003 Tony Alderman G4LQD Fc.3286
004 David Ayres G6GBC Md.28108
006 Paul Shayler G6TSF Sl.41396
007 Bill Perkins SWL Sl.32171
008 Lynas Newton G6LYN Sl.75247
009 Mike Brown G4RAA Bn.4262
010 John Duel G6CHO GX.84366
011 Dave Lomas G4XOW Lt.Grn.2847
012 Ann Lomas SWL Lt.Grn.2847
015 John Betts G4HMG Iver.651652
016 Diana Betts G4MVV Iver.651652
017 Gerry Thorn G8VNA Wey.52775
018 Caroll Thorn SWL Wey.52775
021 Peter Harman G4XGD Sl.28826
022 David Tanswell G6LAU Iver 652412
024 Brian Page G1BAP Coln.5029
025 Dave Bentley G6LKZ Sl.25101
026 Kevin Hadley G4HDK 0734-731026
027 Graeme Platts G4XOF Sl.78495
028 Ian Rae G8BUE Sl.20757
029 Graham Stewart G6HEJ Fc.5897
030 Richard Ashberry G6RTM Sl.46012
031 Ted Swaby G4XOE Sl.75099
033 Dave Hemmins G6DRP Bn.64436
034 John Williamson G4XJN Sl.24008
035 George Wall G6TXI Fc.5954
038 Paul Robinson G6DVC Rslp.72125
041 Martin Heaver G4WSW ********
042 Ron Howlett G1BSQ 0895-445006
043 Bruce Gilson G4WVX Bn.64415
044 Mike Thomson G6WNU Bn.62328
045 Peter Phelps ***** ********
046 Janette Phelps ***** ********
047 Peter Melling SWL** Sl.29025
048 Mike Gathergood G4KFK 0895 834167
049 B. Mockett G1DSI ********
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Please note if your details are not correct please fill in the form
on the back of the magazine and hand to a committee member. This
will help us to keep the records up to date.

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CHAIRMAN.............G6LKZ DAVE
SECRETARY............G6DVC PAUL
TREASURER............G6LYN LYNAS
ORD'MEMBER...........G4RAA MIKE
ORD'MEMBER...........G4WSW MARTIN

THE BURNHAM BEECHES RADIO CLUB

G3WIR G6WIR

The Burnham Beeches Radio Club, affiliated to the Radio Society of
Great Britain, serves the Slough/Windsor area, although it got its
name from its original meeting place - or that vicinity.

We meet twice a month, and our activities cover a wide range of
topics related to radio communications, such as lectures,
demonstrations, and club operating nights; there is also a keen
interest in home computing among our members.

We welcome members of any age and sex, who have an interest in
Amateur Radio, whether they be licenced amateurs or 'Short Wave
Listeners'.

Meetings: 1st & 3rd Mondays of each Month at 8.00pm
StJohnAmbulanceBrigadeHQ
Burlington Road
Slough.

Secretary: Paul Robinson G6DVC Tel.Rslp.72125
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MEMBERSHIP DATA FILE

NAME:.................................... CALLSIGN:................
ADDRESS:................................. DATE:....................
................................. TELEPHONE:...............
..................................POSTCODE:................

BANDS WORKED: HF( ) VHF( ) UHF( )
MODES USED: CW [ ] SSB [ ] FM [ ] RTTY [ ] ATV [ ]

MAIN INTERESTS: (Building, contests, ATV, RTTY etc;)
...................................................................
...................................................................
...................................................................

SUGGESTIONS FOR CLUB ACTIVITIES:
...................................................................
...................................................................
...................................................................

COMPUTER INTEREST:.................MODEL:..........................
[All details held in confidence by the committee]

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