Tektronix 2A60 Instrument Reference Book page 41

Type 60 (con'd)
TRIGGER TAKEOFF SIGNAL
AMPLITUDE INCREASED
bk.
-
See SQB**
M3591
(con 'd)
M6089
Effective Prod s/n 740
Usable in field instruments s/n 101-739
DESCRIPTION:
To compensate for a change in 561A CRT sensitivity
to
18. 5V /CM, it is necessary to change
the trigger pickoff divider to approximately 3: l,
to
assure a trigger takeoff signal of 0. 5V
for l minor division. (See 'Before' - 'After' drawings on following page.)
** NOTE: This mod is needed only if the type 60 plug-in is to be used in a 561A.
Parts Removed:
R481
R482
R483
470k l/2W 5%
100k l/2W 5%
100 k pot
301-0474-00
301-0104-00
311-0207-00
Parts Required for Field Installation:
See 'Parts Added.'
Continued.
Parts Added:
R480
R481
R482
R483
C481
4. 7 M l/2W 5%
lM l/2W 1%
500 k l/2W
1%
250 k pot
1.
8 pF 500V
E-12-66
60/2A60 MODIFICATION SUMMARY
301-0475-00
309-0014-00
309-0003-00
311-0241-00
281-0557-00
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