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Ampex 350 User manual

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_l_|httt __lo_0 __ _ _ /0
':,,.'
,.'' moDEl?,3'' 35o...
.., -.g 1 -
OPERAlON AN D
''', ,, MA3NrENANCEMANUA-'L
'.^',;;v:,'
_f
T TTTT
6i' IuTIO5
IYSTiT LATI
2. lMounting and3neconnecin
2. 2A. C. ower
- 2,L 3 0ut, ut.
2. 3npu
2. 5hones
2. emoteContol
2. 76O uycl Amliie
2. ùccess 'to Console bine
./ Access to Unde5ide o echnica3
5semblyCse inTo rusec oable
.1O vel.leformnce hech
PRAT0 R O''ur DU
3. leel i2e and Reel 3nobs
3. 2Tape Theding
33 3l Tch Getion
3, Powe
3. 55eed 5wiXches
3, 6mlae loion
3, b. ditingnd Cweing Techniques
TAl^iTAP0T GHAY
.l. ljo Asemblies
.2 .Tape Tension 5ys'tem
.l BraXe apeion
42 2 Reel Cie wich
,3 -elay peraion
3l 3l3y
.3. 2 ewind
,3 3 FasFoward
.3, Sto
3, 5ety nelochs
,ouine 3ainenance
,l leaníng
,4. 2 ubicaion
43 Head emagnetítion
djustme ts
-. 5,!_ Teu nd ewiJensio
.5. 2 'he Tesion
-, 5.3 ,3sn der essure
ßep3ceen3 es
,,. J ^ ching' ecuions o N-otors
,Mahe _econdiionj_n Jd
e, lcee't
TOI Av '-''3L- Y
ecrdm-mifje
lybaclcmliie
3iasnd rse Oscillor
rU/Jetg and Jonitorio
Power3^u-,!3, ly
ß3ecroniAlig nme It
5, 6_l Al.i,nment nJ Te,st qi;,?e-'
e quiemens
5, 2 uenealrecuions
5, .3 Playbch CicuitA-lir-!e
f 6,, ' send _ecod ir.uiAlinme;
ST JT
odel 30(íuompleXe auipen')
TapeTransor echanism
ecronicAs semby
is c e lane ous
TpeTen5ion ytem
BaheOpDetion
ReelHodown Knob
leconicAssembly (7 3/''-35'')
ÆlectonicAssembly (33/.-''7 l/''3
TapeTranspot Conol ' ircuits
PoweSupply
Input
laybackquali2ation ' urves
ecod Equali2atioCurves
lec-onic ssembly -i ront Panel
ßlectronicAssembly - op an Rear
lectronicAssembly - otom
TaeTrnsorX echanism -To,
pe Tanpotlechnism - otom
TpeTrans_ or echnism m otomßon
TpeTrans, ot V3echnism -otto--e
__
emoteontrol Unii
- onsoe^ervice Accessibijty
ec-hnicalAssembly Svìce cces5
( ortab e 3
______l __4 _l T0h 7o db _ 6 0
TI l
S' I3uT303'
TheAex odel 35Omagnetic tae ecorder is two-speed udi0
recordedesigned o use wih snddl/+ inch ape.l-Jodel 350 is vailb3e
inconsole, two-casepotble, nd ach-mount5tyles, al1witheihe
ullo hal trah headsThe efomance 5ecificaions and characeriics
ohe mchinee s fo1lows:
TAPSßE
7-l/2inches p-e econd and l5 inches-er secondo
33/inches ersecond an 7-l/ inces per second
FR;,, UC Y R5G5n
eed Re 5o nse
3-3/4"+ 2 db 5 o , 50O cycles
7-l/2"m 2 db 0 to lO, OOO cycles
+4 db 3O to15, OOO cycl
35'' +2 db 3O o l5, o cycles
IAmTO -TOI6 RA TI
^lax ecod evel o , gak ecod Levelto
SpeedUnweighed ois e Unweighted Yois e
3-/bo db 5o db
7-3/2''ull Tch 70 db ull Trck b0 d
lTrach b5 db 3alf Trc 55 db
5l
al Tc 5 dbIal Trah 55 db
Thepe ecodlevel is definedas h 3evel a which the oveall ( inpu
tooupu€3 ol lharmonic disorion does not exceed 3o when mesued on
OOcyle tone. oise is measuedwen easing a signl opeah recoding
35o- b//53 3
________ t __ _ t
levelin the bsence o newsinl Thus, bia nd erae noise eincluded
as wellas plybch ampliie noise, All requencies between 5Oand 5, 0OO
cyclesae mesued
FUTT-'R AD '-' i?\r
^eedFlutter and 'ow
3t3tl 3
7l/2'' Z5 %o
l5'' Z%
Thelutte nd wowmesuements include llcom37onents between
O and3OO cycles usîng ân RM3mete clibated to ed thepeak value o
constanapliude sinewve l3ter.
.ì,A YTM' irTI-T AT l0- l/I'3 .'L3 (2, DO feet of pe3
0eed lTrack ullTc
3-3/''hrs, l min, 2hrs. ^ -min.
7-l/2''2 hrs. 8 min,min.
l5Ib4 min 3 min
STARTGTI3": Istanneous(ape acceleraes to ullspeed in lessthn
l/lOsecond. )
T.R?G TIV: 5.hen playing at the. l5 inches ersecond speed, the tpe
movesless hn wo inches afe pessing_ the ''-top'' bton.
_LAY%AvK T'IG -CURACY: + 2n or + 3, secondsin a thiry minute
ecoding.
RE3DT3lnlJ; ppoximtely one minute or he ul 2,OO footART reel.
OTRO:The pe motion is co.ntolled by our pushbuons: Strt, top,
s Fowad,and Reind. seae \ecodbutton enegies he ecord
cicuitswhih will dop out when the machine is s'topped. The tpe 5peed is
chngdb'y a oor peed 3Cwitch, An quli2ation wih hanges he p-
liierequali2aion aporiaely for the vaioustae speeds. A eel Qie
swichrovides proper ae tension for eihe he AR l0-l/Z inchreel
or he lA 5inch and 7 inch reels,
l-235o z/.5/53
__________ / l
R0RDI UT: & swichllows the recorder to accomodae eihr mico-
_honelevel low impedance inpuo to bridge OO ohm + q VU line, balanced
or unbalnced. inus ßO dbm a the micophone input will produce therecom-
mendedecod level. ''
AK0TUT; Plus 4 VU outputino bOO ohmsbalanced o unbalanced
Villeed high imednce ampliiediecly with approimately one volt
RUG-IynAD GUG, ;, he e5e,ecopd, ndplaybach hgds e con-
tainedin a single plug-in head hosing,
MOYITOR:Independent ecord and playbcX sysems allow the tae to be
m_onitoedwhile eording. Aphone jach is povidedto monio eiher the
recodinpu signalbefoe orduring recoring, or the oupu signal fom h
playbackhead whilerecor ding o duringplaybach An A-B switch is incop-
oraedin od that direccomparison can bemade beween he oigínal o
gam andhe ecorded pogm. Thesme switch rnsfesa ínch VU
metefo level comrisonnd monitoing. TheVU meteis lso used to
ed bisand erase curent.
'!'' RURMßlT: The half andull tackmachines equie 2, 7 amperes
at ll5 vols A, achines arevailable oreithe 50o 'Ocycle opeation.
Ii33A YD -V T:
RachMlounted:
3ndad l inch wide panel wih commercial noching,)
TapeTanso: l-3/inches ofach sace, weight 5O lbs.
ßlectonicAssembly: 1 inches of ach space, weightl8 lbs.
owe 5upply: 3-l/2inches o ach space, weight 0 lbs.
C onsole: .
eigh 4^'' (mimum)
Deph.2 l/'' (maimum)
ì,idth. Z4- l /2' '
ieigh€- l pounds
35O -0/l/53 l-3
_eht
wa s.e :",ole
TpeTranspo se
-Jeighm. CJ/''
,ll
--.,ri'dh2-/-"
eigh^L5 -,!?o4-nds
Eleconic.sserly G07 ..3oweCu,3l/ '' a5e
(wih.e a ?,ace o mie. o ca'le 5 ae)
33eig3t 1''
eh 3''
:idhm.. 23l
.',rej2h- (less re)-2 ounds
',,