SAM-A1 Owner’s Manual
FSL0132
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FSL0132 Version 5.1 © 2020 Fireworks Solutions Limited Page 5
2.
Safety and Warnings
2.1.
Lethal Voltages
WARNING Lethal Voltages!
Valve amplifiers invariably use high voltages,
both Direct Current (DC) and Alternating Current (AC) that are available at
high currents: the combination can kill you. It is your responsibility to
operate in a safe manner at all times to avoid electrocution of you and others
and to make the products safe to use.
Modifying valve amplifiers is DANGEROUS there is no need for you to modify the SAM-A1
amplifier. Do not attempt to modify the equipment yourself! If you want to change the
configuration of your SAM-A1 amplifier please contact FSL.
Our amplifiers are assembled to the highest standards, the configuration of every unit is recorded
and each is fully tested before despatch/delivery. The SAM-A1 is CE marked and all aspects of the
design relating to user safety are covered in this manual, supplied with the equipment and full
details of the SAM-A1 conformance with the CE marking directives are recorded in FSL’s Technical
Construction File.
FSL accept no liability for any damage or injury sustained through, or as a result of the
modification of the amplifier, or its use for anything other than the stated intended use.
2.2.
High Surface Temperatures
WARNING Valves get HOT! Up to 220
o
C
1
. Do not touch the valves when
they are on or until they have cooled down (at least ten minutes should be
allowed between removing power from the amplifier and touching or
cleaning/dusting the valves).
DO NOT COVER. It is recommended that at least 300mm be allowed above the top of the
amplifier to allow free flow of air to take heat away from the valves. DO NOT locate it under
flammable materials or materials likely to melt. The amplifier has vents on the underside and top
surface of the enclosure to allow air to flow through the enclosure by convection. Ensure these are
not blocked, i.e. ensure the amplifier is resting on a hard flat surface when in operation – and do
not cover.
Ensure the SAM-A1 is located where it cannot be reached by children or pets.
Never leave the amplifier unattended when it is switched on.
It is normal for the metal enclosure of the amplifier to get warm, especially the top plate, which
will be heated by radiation from the valves and components under the plate. The rear plinth is
used to dissipate heat generated in the linear power supply and may get warm depending on the
supply connected to the amplifier and its configuration.
1
This is the specified maximum temperature that the glass bulb can achieve for the output valves
(V2,3,5 and 6) if the valves are operated at the maximum specified ambient temperature for the
valves and at maximum power.
