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THORN 9000 CHASSIS
On switching on, the tube arcs badly for a few seconds, then
a perfect picture is produced. The 82540 Syclops transistor
has been replaced.
The discharge will do no harm provided the receiver has
been correctly set up and the e.h.t. does not exceed 26kV
maximum (R606 on the Syclops control panel is the set
e.h.t. control) – some tubes tend to spark more than others!
Remove pin 13 from the tube if it’s still there – it tends to
pick up a static charge and cause intermittent colour. Do
this very gently and carefully.