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M.ANUAL CHANGES
MODEL
492A/494A
TRAVELIl\G-WAVE AMPLIFIER
M1\nual Serial Prefixed: 010-
Manual Printed: 1/62
To adapt this manuai to instruments with other serial prefixes check for errata below, and make
changes shown in tables.
Instrument Serial Prefix'
ALL
Make Manual Changes
ERRATA
Instrument Serial Prefix
Make Manual Changes
492A ••••••• O. 5 rna
494A ••••••• 1.0 rna
-
ERRATA:
'/a/63
Table 6-1.
SRI: Change to rectifier. metallic: 65 rna, l;OV;
~Stock
No. 1880-0003.
SR4:
Change to rectifier. metallic: 620 rna. l30V; !tStock No. 1882-0007.
Page 3-1,' Table 3-1.
' . Change HELIX
CU~RENT
to read:
Table 6-1.
VI:
Change descrip:ion to "tube. clectro:l: 6BG6G".
Table 6-2.
'iStock
~o.
0690-1521: Change description to "fxd. comp.1500 ohm., ±.IO';'o.
1 W".
1j'Stock No. 1923-0026: Change description to "tube. electron: 6BG6G".
Under lo-tlSCELLA1\"EOUS, change
~Stock
1\"0. 1401-0084 to 1400-0084.
Section V, Paragraph 5-2ge.
Line 3 sh",uirl read 33 folio'."3:
"~rc t~r
thon -0 m·.· ...
Table I-I. Specifications,
Hum a:1d SpUrim.l3
~lcdulation:
Char:ge
to
"At least 40db below signal le';el"
for
r"
xlel 492A and 494A.
S
:??:e':lle .:
;.~
f::;r
-i
Q
2h,'
~').;;... -~.-
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