Tektronix 7834 - Page 24

7000 SERIES
7104 ,
7704A ,
7834 ,
7844 ,
7854 ,
R7903
AND
7904
DEFECTIVE
CAPACITOR
Reference :
WIZARD'S
WORKSHOP
Issue
10-10
It
has
been
brought to
our
attention
that
there
are
other
date
codes
of
the
"
Capco
Brand "
capacitors
that
may
not
have
had
oil
impregnation .
As
of
now ,
lot
dates
from
7935
through
8007
are
suspect .
Identifying in
which
of
the
above
listed
instruments a
defective
capacitor is
installed
requires
a
visual
inspection .
To
decrease
unnecessary
time
spent on
checking them ,
the
follow
ing
system
should be
used .
If
the
capacitor is
checked
and
found to
be
good
,
or it
is
replaced
with a
good
one ,
mark
the
bottom
outside
cover
of the
power
supply
with
the
Field
Office
code
and
the
date .
Maybe
this
will
save
some
time
if
the
instrument
goes
to
another
Service
Center
with a
possible
power
supply
problem .
Reject
all
capacitors
with
the
above
listed
date codes .
Thanks
to
Bob
Zuleeg ,
Orlando
Service
Center ,
for
the
inspection
system
suggestion .
--John
Eaton
58/511
,
Ext .
6902
-10
June 27 , 1980
Issue 10-13