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BUSH TV85
This set takes about three to four minutes for
a picture to appear after switching on. When the picture does appear, it continues to get brighter
for the first half-hour so that the brightness and
contrast controls have to be set a number of times
before the picture finally settles down.-D. James
(Swansea, Glamorgan). The heater circuit thermistor may be faulty and
should be checked by noting how long it takes for
the valve heaters to glow normally. If the heating up time is normal try a replacement PY81 if the
e.h.t. whistle is delayed, and the PCF80 video
amplifier if the line timebase whistle is normal