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(bilde fra www.zettzeit.ch)
Her er en teksten i PDF'en på engelsk:
Jeremy Brandon presents his "De Luxe" Speed Regulator
A driving pleasure of the special kind
If Jeremy Brandon devises something, then one day something really
useful comes out thereby. The native Englishman does not belong to
the developers, that announce, then again withdraw their products
before months and revise and throw sometime then once again on the
market. In the opposite: if he presents one of his products, then
is also the completely finished and immediately applicable product.
Already in the past year Jeremy Brandon presented a small speed
regulator as meaningful additive for the battery controller of
Maerklin. Meaningful, because the part from Goeppingen offers not
substantially more at that time and still today, as an attached
battery with on/off switch. Jeremy Brandon's regulator against it
taught correct running to the Z-locomotives in this new combination.
A sensitive control over the entire range of control with really good
slow handling characteristics provided for a successful driving fun.
But the owners of Fun Sets with battery controller did not only come
at their expense, because the speed regulator could be attached also
to a transformer or a mains adapter.
But the better is good enemy. That imagined probably Jeremy Brandon,
who did not rest himself after the initial success of his first speed
regulator under any circumstances on his laurels. It would be
excessively exaggerated, if one would say, he day and night on an
advancement would certainly have worked. But many days and nights
had to believe in it and fell victim to fiddling, testing and
programming. And we present the result today in form of the new
speed regulator in the "DeLuxe" version.
Core element of his speed regulator is, how already with the previous
version, a small IC, that Jeremy Brandon calls "the computer" . In
it all information is stored, which ensures the latter finally that
the Z-locomotives get a handling missed, which can probably be
weighed out very much and called all around successfully. But to the
pleasure we come later.
Jeremy Brandon's speed regulator is very compactly held. The large
rotary knob serves not only as automatic controller for sensitive
regulating, but also as on/off switch. Since the rotary knob turns
only in one direction, the driving direction cannot be determined by
the regulator clearly. In addition its own direction switch is
necessary as an accessory. Via a stabilized mains adapter or a
battery the speed regulator is supplied with necessary DC voltage -
in our case 9 V. If one uses the adapter of Conrad (#511225),
recommended in the instruction sheet, then the output cable must be
cut, so that the two wires can be put into the screw terminals of the
regulator.
A red LED indicates the operating condition of the regulator and
using a small potentiometer beside the large rotary knob the maximum
speed can be individually adjusted.
Anyone who would like to use the speed regulator with other voltage
supplies, should note that the stabilized input voltage must lie
between 6 and 12 V.
We come now to the pleasure. First we attach the regulator in
accordance with the instruction sheet and use as power source the
mentioned mains adapter from Conrad. Without the additional
direction switch we do our first driving test - then the locomotive
drives in our case only in one direction. When everything is
attached, we set the test machine - a diesel locomotive of the firm
Wiebe - on our track oval. And which follows now, is a driving
pleasure of the special kind.
With one click we switch on the speed regulator and turn the rotary
knob very slowly to the right. Almost imperceptibly the locomotive
starts moving. We continue to turn the regulator up, the Wiebe
machine comes so correctly into travel. Since to us the maximum
speed somewhat too highly seems - a purely subjective feeling - we
adjust the speed with the small potentiometer. A following test
shows: at full-scale the locomotive became slower.
What inspires us in such a way at this speed regulator, are the
really fine slow handling characteristics. It does not play a role
whether the locomotives has a 3-pole or a 5-pole motor as its drive.
Genuine creeping travels are from now on at all no more problem -
presupposed, the railway tracks are clean. For these excellent
handling characteristics the programmed feedback at the IC provides,
so that one can quite speak of a target/actual regulation at a high
level. What happens however in detail in this small chip, remains
Jeremy's secret.
After the first test rounds we hang a few Wiebe cars to the
locomotive and let the train pull really slowly over the test oval.
The oval consists of nothing more than two curves and a few straight
tracks. But the train needs several minutes (!) at its creep speed,
until it returned again to the starting point. Subsequently, must
the nearby NOHAB from Claes Mikkelsen make the course, which she is
able to complete just as brilliantly.
There the question arises: does a train have to drive so slowly? Do
I need these handling characteristics at all? Now, with the speed
regulator from Jeremy Brandon it depends on the whole performance.
The handling characteristics of model locomotives are over the entire
range of control as perfectly to designate - from the extreme creep
speed over normal velocity up to the maximum speed. Those are in our
eyes crucial criteria for an all round successful and absolutely
recommendable speed regulator. If Jeremy Brandon should optimize the
regulation in the future further, then the IC sitting on the
regulator be re-programmed - an indeed promising characteristic.
What is still missing now, is a housing containing the speed
regulator and direction switch. According to our information such a
housing is in development.
The speed regulator in the "DeLuxe" version is immediately available
from System Joerger in Puchheim and costs 33 EUR. The direction
switch is available from the middle of October, the price is not
certain. All prices are exclusive of shipping costs. And in order
to provide each interested Z-friend a first impression of the new
speed regulator, we have attached the entire instruction sheet to
this article. For detailed further enquiries Jeremy Brandon
personally is gladly available.
Captions:
Above: That is it, the new speed regulator from Jeremy Brandon. And
the NOHAB from Claes Mikkelsen must also believe in it.
Left: From nearby the speed regulator from Jeremy Brandon looks
completely inconspicuous, but the devil is here in the detail.
Above: With a small potentiometer the maximum speed of the regulator
can be adjusted to your own taste.
Under: As voltage supply the stabilized mains adapter of Conrad
Electronic serves.
Left: The Wiebe locomotive on extreme creeping travel on our test
oval.
Left: All operating conditions of the driving automatic controller
are indicated over the red LED.
Under: Unfortunately the extreme creeping travel in the print cannot
be visualized.
