Thermionic Culture THE FREEBIRD 3 channel equalizer - Manual (Page 9)

©Thermionic Culture Ltd., May 2011 8
5 Servicing and maintenance
The Freebird comes with a 12 month warranty covering all
parts, including valves. It is essential that in the event of a
fault occurring it is returned to our factory or to the dealer
from which it was purchased for repairs to be carried out
otherwise the warranty will be invalidated. There is however
one exception to this rule:
5.1 Valves
If a fault occurs, the most likely cause is one of the
valves, probably the input valve. There is one input
and one output valve per channel. The inputs are the
ones closest to the front panel. If a fault (eg. a crackle)
occurs on Ch 1 then swap the input valve with the one
from Ch 2 and check whether the fault moves. If not,
try the same with the output valves.
To change a valve, unplug the mains power lead,
unscrew the top cover, remove the valve screening
can by pushing down gently and twisting it anti-
clockwise, then pull the valve straight out. WARNING
valves run very hot so you may need to use a cloth to
remove the valve. ALSO be careful not to touch any
exposed component leads as potentially lethal
voltages lurk there, even after disconnecting the
power source.
If you find a faulty valve, contact your dealer or
ourselves and a new one will be sent to you (free of
charge if still in warranty). PLEASE send back any
faulty ones.
Do not try to operate the unit without all of the
valves plugged in.
Valve
complement:
Input: 3 x 5965
Output: 3 x PC86