Redgum RGT1 User manual

REDGUM Audio Pty Ltd
Factory 3, 25 Clarice Rd
Box Hill South, VIC, 3128, Australia
Ph: [phone]
Fax: [phone]
redgumaudio.com
ABN 45 093 132 515
REDGUM Audio
AM/FM Stereo Tuner
Model RGT1
Owner’s manual

Contents
Why REDGUM?..............................................................................1
Unpacking..................................................................................2
Connecting your tuner to other components...........................................3
Audio Hookup..........................................................................................3
Aerials.....................................................................................................4
Power supply ...........................................................................................5
How to use your REDGUM tuner .........................................................6
Turning the tuner on and off.....................................................................7
Basic operation ........................................................................................7
Presetting Clock model.............................................................................7
Achieving the best sound from your system ...........................................8
Your listening room..................................................................................9
Other helpful hints .................................................................................10
Troubleshooting.........................................................................11
Specifications ............................................................................13
Warranty..................................................................................14
Warranty Registration...................................................................15

1
Why REDGUM?
The river red gum is Australia’s most widespread and recognised tree,
and it produces a wood that is truly unique. It yields the second hardest
timber in the world, and this strength saw its widespread use in the
railway lines that sprang up to connect the rapidly expanding colonies of
early 20th century Australia. Its resistance to termites also made it the
natural choice for building foundations, and to this day it continues to
support some of our most historic structures.
The river red gum can be found on most river banks in mainland
Australia, where its roots tap into water stored in the sands and its leaves
provide food for the indigenous wildlife. It presence is synonymous with
the Australian outback, at once a symbol of life sustaining water and the
struggle against a harsh climate. When conditions turn dry, the red gum
will adapt by shedding huge branches from its trunk in an effort to
conserve moisture. As anyone familiar with camping in the Australian
bush will tell you… don’t ever pitch your tent underneath a red gum tree!
A celebrated part of our culture, it has perhaps been made most famous
through the landscape paintings of Hans Heysen and Ronald Bull.
And while it was in wide use throughout Australia’s history, it was not
until the invention of the carbide saw that it was possible to cut the wood
accurately. And only then could the real beauty of this unique hardwood
be unveiled.
When polished it reveals a deep red lustre, highlighted by an intertwining
and tightly packed grain structure. Fine irregularities add to this beauty,
and it is highly sought after as a decorative wood for these unique
aesthetic properties. No two pieces of red gum will match exactly, and
this is as it should be. Like our products, each piece is outstanding and
unique.
Now that you’ve heard the story of the Australian river red gum, it’s time
to listen to your very own REDGUM. We’ve carefully selected and lovingly
crafted each piece before coupling it to some of the finest audio
engineering that money can buy. The results? Stunning! Trust us, you
won’t believe your ears.

2
Unpacking
Carefully unpack and inspect your new tuner.
In the carton there should be:
?? an Owners Manual
?? AM loop aerial and FM wire aerial (white)
?? RCA Audio lead
?? the tuner itself.
If there is any damage to the tuner, contact your dealer immediately. It is
a good idea to keep the shipping carton and packing materials, as they
can be used to protect your tuner whenever you need to move it again in
the future.
If you need to repack your tuner at a future time, replacement packaging
is available from REDGUM Audio at a nominal charge.
Contact REDGUM Audio Pty Ltd via the website.

3
Connecting your tuner to your amplifier
For safety reasons, always ensure that your tuner and other components
are turned off and disconnected from mains power before making any
connections. Failure to do so may result in an electrical shock and/or
damage to your equipment.
Audio Hook-up
The Left and Right Out sockets shown on the rear of the tuner should be
connected to your amplifier input sockets marked ‘Tuner’. (Or any other
high-level input sockets (not phono).
REDGUM RGT1
Am Fm Stereo
Tuner
Made in Australia
Left
Right
Out
FM Aerial
75 ohm
Earth Am Aerial
Follow the steps below to connect your tuner to your amplifier. Using the
supplied RCA lead.
Step Action
1Connect the:
?? right-out tuner socket to the respective right-in on the
amplifier;
?? and
?? Left-out tuner socket to the respective left-in on the amplifier.
2Ensure that all connections points are clean, and that all connections
are secure. Check that wiring terminations look neat and that no
loose strands of wires are touching any other terminals. Failure to
make neat connections may result in poor sound.

4
Aerials
This REDGUM Tuner is the highest quality AM/FM tuner. The Quality of
the sound that you hear will depend entirely on how good your aerial/
installation is! This is true for AM as well as FM transmissions.
REDGUM RGT1
Am Fm Stereo
Tuner
Made in Australia
Left
Right
Out
FM Aerial
75 ohm
Earth Am Aerial
Follow the steps below to connect your AM and FM Aerials to your tuner.
Step Action
1Connect the:
?? Loop antenna (15) to the Earth and AM Aerial terminals;
?? and
?? the FM aerial (14) to the 75ohm FM aerial connection socket.
2Ensure that all connections points are clean, and that all connections
are secure. Check that wiring terminations look neat and that no
loose strands of wires are touching any other terminals. Failure to
make neat connections may result in poor sound.
Note
Always keep the power cord away from the antenna.

5
Power Supply
Your REDGUM tuner comes with an IEC 3 pin power socket. This should
be connected to your mains supply by a suitable power cord. If a power
cord is not supplied, a suitable cord can be easily obtained from your
local computer shop.
AC 220~240V 50/60Hz
300W (Max.)

6
How to use your REDGUM Tuner
At the front of your tuner is an on/off switch, and several push buttons
These are used to turn the amplifier on and off, and to select the many
functions. They are listed below.
1 –Power on/off switch: Rocking down will turn the power on.
2 –Display: Channel, band and frequency information.
3 –Signal Strength: AM of FM signal strength is shown.
4 –ST/MO: Use this button to select between stereo and mono.
5 –FM: Press to select the FM Band
6 –AM: Press to select the AM Band
7 –Display: Press this to display and enter the time mode.
8 –Down/Hour: Press this to set the Hours on the clock or move the
tuning frequency down.
9 –Up/Min: Press this to set the Hours on the clock or move the tuning
frequency up.
10 –Memory Locations: These are the preset buttons for stored stations –
FM(1-16) AM(1-8)
11 –ME/Set: Hold this button and press the desired memory location to
store station presets. OR Hold this button and press the Hour/Min
buttons to set the clock.
12 –PS: Press this button to search the memorised stations
13 –Stereo: This lights when stereo mode is selected. (If signal is ‘noisy’,
selecting Mono will improve the quality.)

7
Turning the tuner on and off
Your tuner utilises a rocker switch as the on/off control.
Flick the switch on the front panel to turn the tuner on and off. This is the
preferred method, as the muting circuits will operate correctly causing
less startup and shut down noises.
Also you can safely turn the tuner on and off by using the rocker of the
Circuit Breaker switch (marked Reset/Off) at the rear of the chassis. In this
case, rocking the switch to the ‘Reset’ position will turn the tuner on.
Alternatively, you can safely turn the tuner on and off from the power
point when the Circuit Breaker switch is in the ‘Reset’ position.
Note
Always make sure that the volume on the amplifier is turned down before
turning on your tuner, to protect your equipment.
Basic operation
Select the broadcast band (AM or FM) using the BAND selector button
Manual tuning can be done by pressing the UP or DOWN keys on the front
panel
To automatically find stations, press the UP or DOWN button and hold for
more than 1 second. The tuner will ‘scan’ looking for strong signals, and
will stop when detected. This procedure can be repeated as necessary.
To lock stations into memory, first select the station by the above
method, then press and hold the ME/SET button and press the desired
memory location. (this will replace the existing memory with the new
station)
By repeating this procedure you can preset a combined total of 16 FM and
8 AM stations. (These presets will be kept in memory by an internal
backup battery if the power fails)
Presetting Clock Mode
Press DISPLAY button to enter clock mode. To set the time, press and
hold the SET button, then press DOWN/HR to adjust the hour digits and
UP/MIN to set the minute digits.

8
Achieving the best sound from your tuner
This section is provided to offer some general assistance to those seeking
to get the very best performance from their tuner. You will be surprised
by just how much improvement can be had be experimenting with a few
simple factors. The following advice is based on our own years of trial
and error, and we hope that checking through it makes a positive
difference to the sound of your system.
Where to put your aerials
AM aerial position
The AM loop aerial is directional, so rotating it will dramatically change
the quality of AM reception. The assembly can be stood on a shelf, or on
the top of the tuner itself.
FM Aerial
The FM aerial should be installed as high as possible. The FM aerial is also
directional and the sound quality can be dramatically improved by correct
orientation.
For the best possible reception, you should consider the professional
installation of an ‘in roof’ FM antenna. REDGUM can supply a suitable FM
antenna for this purpose. There are TV aerial professionals who have test
equipment to optimise your aerial installation. (Use the white pages to
locate a local person.)
Why do I hear sounds when turning my tuner on and off?
You can expect to hear sounds from your loudspeakers when turning your
REDGUM tuner on and off. Usually, you will hear a slight ‘pop’ sound
when turning on, and a similar sound when turning off. These sounds are
caused by electrical energy increasing and decreasing within the
amplifier. They are a sign that your tuner is operating normally, and are
not a cause for concern.

9
Your listening room
Strange as this may sound, the room itself will have a profound affect on
how your audio system responds. In fact, many experts consider the
room to be as important to the sound as any other component in your
system!
Did you ever notice how it’s difficult to talk in some restaurants because
you can’t hear each other over all the other conversations going on
around you? Yet another similarly sized restaurant is perfectly suited to
intimate romantic murmuring. The difference lies in the surfaces around
you. Here is a simple test –go into your bathroom and clap your hands;
then clap them again in a room with carpet, curtains and other soft
furnishings. Notice the difference? In a room with many hard reflective
surfaces sound waves bounce around a lot before dying out. Not even
the most expensive stereo in the world is capable of sounding good in
such a challenging acoustic environment.
When it comes to your listening room the same principles apply. Wooden
floorboards, polished concrete and slate tiles are all highly reflective
surfaces. In a room without curtains or other wall furnishings the sound
may be overly ‘bright’ or aggressive.
Similarly, it is possible for a room to be too ‘damped’ or absorptive.
Where there are no reflective surfaces at all the sound may seem ‘dead’ or
lacking in energy.
Luckily for us, most household rooms are a combination of the two. And,
generally speaking, a combination of the two will bring about the best
results.
Too many hard surfaces?
If your room is too ‘bright’, try placing a large rug on the floor between
your listening position and the speakers. Or hang some soft furnishings
from the walls.
Too many soft surfaces?
If your room is too damped, try removing some of the soft furnishings
from the walls or rugs from the floor.
Managing the bass
Sometimes, low frequency waves can also bounce around and cause
problems in a listening environment. This may be the result of the shape

10
of the room, or the materials it is constructed from. Large pieces of
furniture in a room can often help to break up these ‘standing waves’.
While few of us will feel the need to redesign a room to improve its sonic
properties, sometimes a small change, like placing a rug on the floor, can
make a big improvement to the sound.
Other helpful hints
Corrosion and sound system terminals
Atmospheric corrosion can build up on speaker cable and interconnect
terminals over time. Should this occur, removing and re-inserting wires
and cables will improve the contact and hence the quality of signal
transmission. Always remember to turn off all equipment before
connecting or disconnecting any wires or cables.
Placement of components in your sound system
Lots of fresh air is important to the health of your electronics. The louder
you play your music, the more important it is to ensure that components
receive adequate ventilation. Amplifiers, in particular, will generate a lot
of heat. Placing the amplifier at the top of the stack, and ensuring
adequate ventilation, will help to ensure that heat can be dissipated as it
should.

11
Troubleshooting
The following troubleshooting guide is designed to assist you in
identifying and rectifying any problems you may experience with your
tuner.
Symptom Likely cause Recommended action
No sound The tuner is not turnedon, or is not
connected to the power outlet Check that the tuner is plugged into the power outlet, and turned on
The sound of a particular
station is poor Lack of signal Make sure that the aerial is oriented correctly to maximise this station
Stereo signal is ‘hissing’ Low FM signal Switch to mono or improve the
aerial system
Station presets are lost
when the tuner is
unplugged for a day or two
Backup battery has failed. (the
internal rechargeable battery should
hold the memory for 30 days or
more without power, and last in
excess of 5 years)
Send the tuner in for service to
replace backup battery. Or leave the
tuner plugged into the mains power
at all times.
If the problem cannot be resolved by any of these recommended actions
you should make certain that the problem lies with the tuner, as
malfunction within other components may also be the cause of the
symptoms. You can do this by borrowing an amplifier and speakers that
you are certain are working, and replace your normal components with
these to test the tuner in isolation. If the problem persists, please see
your local REDGUM Audio dealer.

12
Circuit breaker
Additional protection for your equipment is built into the tuner in the
form of a Circuit Breaker. Found on the rear panel of the chassis, it is a
rocker switch with RESET and OFF positions. (See also section –Turning
the tuner on and off.)
In the (unlikely) event of a power overload or an internal malfunction, the
Circuit Breaker on the rear will activate (‘trip’). The switch will
automatically rock to the OFF position, and a red light will be seen inside
the rocker.
In the case of a power overload, rocking the switch to the RESET position
will turn on your tuner again. When reset the red light will turn off and
you will hear a ‘thunk’ sound as the tuner powers up.
However, in the event of an internal malfunction, resetting the switch will
not be possible. When the switch is rocked to the RESET position, it will
instantly flick back to the OFF position, and the red light will stay ‘on’.
Should this occur, the tuner will need professional service.
If in any doubt whatsoever, please consult your dealer.

13
Specifications
RGT1
AM FM Stereo tuner
AM Section:
Tuning frequency range 522-1611 KHz Steps 9KHz
Distortion: <7%
Sensitivity: < 6.0mV/m
Signal to Noise: > 36dB
Frequency Response: 80Hz –4KHz
FM Section:
Tuning frequency range 87-108MHz Steps 50KHz
Distortion: <7%
Sensitivity: <20uV
Signal to Noise: > 46dB
Frequency Response: 20Hz –20KHz
Antenna Impedance: 75 Ohms
Other Specifications:
Audio Ouput: 500mVrms
Output Impedance: 100 Ohms
Supply Voltage: 240V (+-20%) 50Hz
Power Consumption: 10Watts
Memory Capacity: 24 Stations (AM –8) (FM –16)
Cabinet Finish: solid Red Gum wood fascia, powder-coated
1.6mm steel chassis
Dimensions: 420mm (W) x360mm (D) x96mm (H)
Weight: 5.6 kg (tuner alone)

14
Warranty
REDGUM tuner are warranted to be free of defects in material and
workmanship, subject to the following conditions, for FIVE (5) years from
the date of purchase by the original owner. Warranty claims must be
accompanied by proof of purchase, including date.
This warranty is subject to the following conditions and limitations:-
This warranty is void and inapplicable if the tuner has:
not been used in accordance with the instructions contained in
the manual;
been subject to misuse or abuse, one example of which would
be damage consistent with aerial terminals being hooked to
another electrical source;
been modified, repaired or tampered with by anyone not
specifically authorised in writing to do so by REDGUM or its
agents;
been damaged by accident, intent, neglect or transportation.
Should the product be faulty, the owner is liable for the cost of freight to
the nearest REDGUM repair agent, or the factory. Should the product be
found to be without fault, the owner will be liable for the return freight
also.

15
Warranty Registration
Complete for warranty registration:
Name
Address
City
Zip/Post Code
Country
Date of purchase
Place of purchase
Model No
Serial Number (if any)
Fax this page to the REDGUM Audio factory at [phone]
Alternatively, you may email the details (including serial number) to
[email protected]