10
All rechargeable power cells benefit
from periodic discharging to
minimize the memory effect. To
ensure a complete battery
discharge, operate the PL-P
without the PLP-CCC3 connected
until the recharge-able power cells
are completely flat and the PL-P
switches itself off. Recharge the
power cells completely by
reconnecting the power supply. Do
not use the PL-P for a about 90
minutes while the recharging cycle
is initiated. Normal operation can
then resume.
Vacuum Tube Identification and Location
Each vacuum tube used in the PL-
P has been burned-in for 12 hours,
thoroughly tested with each tube
being subjected to 400
measurements before final
selection at the Nagra factory to
ensure the highest level of
performance. Two types of vacuum
tubes used. They are:
• 12AT7 or ECC81
• 12AX7 or ECC83
Many variants of these vacuum
tube types are available and may
function in the PL-P.
However, proper selection and use
of vacuum tubes other than those
supplied by Nagra is an owner
responsibility.
If the PL-P is damaged due to the
use of non-factory vacuum tubes,
the warranty will be rendered null
and void.
The PL-P is shipped from the
factory with vacuum tubes installed
in their proper locations. Since the
unit may have been subjected to
unexpected shock in transit, it is
prudent to check that each vacuum
tube is seated properly in its socket
before operation, using a cotton
glove (supplied in the Spare Tube
Kit PLP-STK #55760).
Photograph of the PLP-CCC3 showing the “I” and
“U” LEDs
