Ampex 350 - 7-1;2 Equalization; 3-3;4 Equalization; Balance Adjustment

_ __ t
7l/2" qu' ali2aion
e the Tape eed witch and quali2atio, n with o
7-1. /a" speed e the a. udio oGillato o 25O cyGs
n te Meter and 0uut witGh_ to e . OR-BV
poMtion ad se the eGod vel Cotrol fo a eadi g
o -36 M on he VTVl ih to he AC
EVE positio. (me laybak eve onol may be
et for ineaed gain i desied) ese te a. udio. o
illat o , OOO0 cyles, put t. e mahine in te Reod
m0 de an. d dJU the ar Oae GOd EQUal2e fOr a
edig o M on the VTV requenGy re3pon3e
hould now be wihin pe. ifition3 and Gan be Ghehed b
weepig_ . e os. illato roug e ange peified i ~e
io 1
3_ 3/ll Æ, ui2atio
e the Tape eed with ad quiation with o
3-3/" geed e he udio osillao to 55O ycs
n e Mee and 44t ih to te C0i
EVEL poion and set he ecod vel Contol or
a reang o =36 DM on e VTVM. itch to he Y
BAC-BV posiion (. e laybac evel4onol
may be et o?_ inceed gai if desi_ ed,) e-e the
udio oillato to , 5OO Gycles, pu he mahine in th
Reod mode, and ad3us he appopiate Red gual
i2e 0 a eading o -16' DBM on e VTVM requeny
esponse shod now be within speGifiatios, nd a e
GheGked by sweeping tbe os. illato tboue the ane
speiied i eion 1
BalanGe . d4smen
, oise alae Conol (R2) sho4ld neve be to4ed
4e e he d hve is been oougly demaeti2ed
as decribed in etio 4 a, a aling ois8 i stll
head in be ouq4t te ead demagnei2aio, onnet a
1 M onde3e aro the I OU T and 8dj4t 2
for miimum Reord noie a ead on a enitive meter
or head in a loudspea oneted o the o44t houo
a poe am- plifie
35o - /i: