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V ert. Cal. 10 Volts/Major D iv .
* W ill be reduced by too small a drive gap and increased
by too large a drive gap.
W ill be increased by a reduced moving coil current peak pulse.
V e rt. Cal . 10 Volts/Maior D iv .
* W ill be reduced by too small a drive gap and increased by
too large a drive gap.
W ill be increased by a reduced moving coil current peak pulse.
_______ I _ _________I _ _________ I _ _________l _________
Hor. Cal. 2 Msec/Major Div .
Signal Reduction due to
Keep this reduction at a minimum
The signal level should be stable by 7-1/2
msec.
FIG URE 24.
STA RT EN V ELO PE
Hor. Cal . 2 Msec/Major D?
FIG U RE 2 5 .
STO P EN V ELO PE
a.
A small non-drive gap; having a tendency
to drive tape at both capstans.
b.
Worn pin in capstan drive pulley.
c.
Pressure pad adjustment.
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