6P45C
High Performance Beam Power
Tetrode
6n45c is a beam power tetrode intended
for use in class A, AB or B audio amplifiers and for class B or C RF amplification. Close
manu-facturing specification
tolerances and improved high voltage processing provides improved reliability and superior
performance.
6n45c features:
Increased peak
cathode emission from new cathode materials; Stable operation from extended processing
and aging; Gold-plated grid; Precise grid/screen alignment; Extra-heavy glass envelope for
ruggedness; Improved vacuum processing; Comprehensive testing before and after aging.
Characteristics
Electrical
Heater: min
nom
max .
Voltage (AC or DC) 5.7
6.3
6.9
V
Current @6.3 volts 2.5
A
Transconductance (nominal) 18,000
mS
Plate resistance (nominal) 8000
ohms
Interelectrode capacitances (typical):
Grid to plate
2.5 pF
Grid to cathode
25 pF
Mechanical
Cooling Radiation
and convection
Base Nine
pin magnoval, glass button
Basing diagram JEDEC
9RJ
Anode connector 1/4"
plate clip, standard sweep tube type
Operation position
Axis
vertical, base down or horizontal
Nominal dimensions:
Diameter 45.6mm
(1.75 in)
Base to top of
envelope 96.6
mm (3.81 in)
Overall height (not
including plate cap) 105.3
mm (4.145 in)
Overall height (including
plate cap) 117.9
mm (4.641 in)
Net weight 110
gm
Maximum Ratings
DC plate voltage 900
V
DC plate voltage, pulsed 8000
V
DC cathode current 500
mA
DC screen grid voltage 300
V
Screen dissipation
7 W
Plate dissipation 35
W
Dimensional Data
Typical
Operation, Class A1, Audio Amplifier (single tube)
Plate
voltage 500
V
Screen
voltage
280 V
Grid
no.1 voltage -82
V
Peak
grid drive 50
Vp-p
Plate
current, no signal 70
mA
Plate
current, max signal 100
mA
Effective
load resistance 1650
ohms
Distortion
at 1 watt into 8 ohms 0.9
%