540B
CHANGE
#4
- 11511
On page 5-22, change the stock number, manufacturer, and part number
of
Jl
and item 2
to
read
as
follows:
11; 2109-284166; 82389; EAC301
2;
6005-284174; 89536; 6005-284174.
ERRATA#5
On page 4-2, paragraph 4-7, replace step F with the following :
F. With a non-metallic screwdriver, adjust the core
ofL1
(adjustment J) for a maximum deflection
to
the
right on
the
Galvanometer meter (approximately 3
to
5 minor divisions is typical deflection).
CHANGE
#5
- 12031
Rev. -E, Search and Protection.Amplifier
Asseril.Qly
On
page 5-12, make the following changes:
FROM:
Q305/Tstr, type 2Nl304/4805-117127/01295/2N1304/Ref
TO: Q305/Tstr, type 2N3904/4819-218396/04713/2N3904/1
Rev. -F, Magnetic Modulator/Carrier Amplifier Assembly
On
page 5-10, make
the
following changes:
FROM:
Q6, Q8, QlO/Tstr, type 2Nl304/4805-117127/01295/
2NI304
/Ref
TO:
Q6, Q8, QIO/Tstr, type 2N3904/4819-218396/04713/2N3904/
Ref
FROM: Q7, Q9/Tstr, Si, PNP/4818-341081/07263/2N4121/2/1
TO: Q7, Q9/Tstr, Si, PNP/4818-195974/04713/2N3906/2/l
FROM: R27/Res, comp, 18k±10%, hW/4705-108183/01121 /EB1831/ 1
TO:
R2?
/Res, comp,
30k
±5%, hW/47Q4.186015/01121/EB3035/1
FROM: R18/Res, met flm, 19.6k
±1%,
hW
/4705-159640/75042/Type CEC-T0/ 1
TO:
Rl8/Res,
met flm,
34k±
l
%,
hW/4705-151241/75042/Type CEC-T0/ 1
On
the Functional Schematic (Transfer Standard) make the following changes:
FROM:
R27, 18k TO: R27,
30k
FROM:
R18, 19.6k TO:
Rl8,
34k
Rev.
-B,
Oscillator/Synchronous Demodulator Assembly
On
page
5-9, make the following changes:
FROM:
Q4,
Q5
/Tstr, type
2Nl304
/4805·117127/01295/2N1304/2
/2
TO: Q4,
Q5
/Tstr, type 2N3904/4819-218396/04713/2N3904
/2/
2
ERRATA
#6
6/79
On page 1-
l,
under ELECTRICAL, add the following information:
Protection Class . . . . .
#I
(Relates solely
to
insulation or grounding properties further defined
in IEC 348.)
2
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