Perth, Electronic Know how?

[Jacek Gonsalves]

Hi all,

Looking for someone in Perth to give me some guidance on building a
transmitter like the R/C devices you get with model cars and airplanes.
Email me...
Cheers
JG

 

[Phil Allison]

"Jacek Gonsalves" <gonsaj@iinet.net.au>

Looking for someone in Perth to give me some guidance on building a
transmitter like the R/C devices you get with model cars and airplanes.
Email me...

** You can buy them FAR cheaper than you could ever build one.

Why not ask for plans for a DVD player or VCR ??




........... Phil

 

[John Crighton]

On Sun, 04 Jan 2004 01:16:16 +0800, Jacek Gonsalves
<gonsaj@iinet.net.au> wrote:

Hi all,

Looking for someone in Perth to give me some guidance on building a
transmitter like the R/C devices you get with model cars and airplanes.
Email me...
Cheers
JG

Hello Jacek,
Can you recognise components such as transistors
diodes, capacitors and resistors on a circuit diagram?

Can you use a multimeter?

Can you solder?

If you answered yes to all and you are keen, then have
a go for sure.

Building from scratch will not be economical for you but you
will learn a hell of a lot. Building from kits will be easier, I
don't think you will be able to get a kit in Australia. Overseas
for kits, I would think. Kits are not as popular now as they
were a few decades ago.

Buying used radio control gear at trash and treasure markets
or garage sales, that is broken and using your skills to repair
it is a good way to get some cheap gear.

Do some googling for anything to do with radio control
schematics, yes an American word but you will get more
results over circuit diagram. Check out QRP transmitters,
ugly or dead bug construction.

Get hold of an ARRL handbook, RSGB handbook anything
up to 30 years old is still OK and study the transmitter topics
in these books for ideas and explanations. You will probably
find some low power transmitter circuits that would suit you.

Have a look here to whet your appetite
http://www.norcim.fsnet.co.uk/
http://www.micronradiocontrol.fsnet.co.uk/

Explore this site for transmitters and receivers
http://w1.859.telia.com/~u85920178/index.htm
look under "useful circuits" for the radio control
encoder and decoder project.

Get hold of some old CB walkie talkies and check
out the output stages of the transmitter. You might
be able to hack saw the power stage section off
the board and adapt it to your needs.

A word of warning, if you turn up at a radio control
model aeroplane club with your transmitter in an
Arnotts biscuit tin and a coathanger for an arial
you will freak out the other modellers and be blamed
for every incident and crash that takes place on the
field, even when your gear is switched off and on days
that you are not even at the field.
Try and get a regular brand name box with Futaba
or whatever written on it and build your own gear
into it, saves a lot of explaining.

There are a few chaps from Perth who frequent this
group. Perhaps you could knock up a few ugly
construction modules just for practice and fun and
refer to them for specific advice and suggestions
for improvements to your work.

Regards,
John Crighton
Hornsby