apk:
Usable Deflection of the Cathode-Side Deflection Plates (Signal Deflection Y) - MIN: at indicated line width
aps:
Usable Deflection of the Screen-Side Deflection Plates (Time-Base Deflection X)
b:
Line Width
B:
Luminous Density - Brightness
Base:
RETMA base designator or KyteLabs base identifier
BW:
Bandwidth
C1:
Capacitor No.1 (Input Circuit)
C2:
Capacitor No.2 (Output Circuit)
Ca:
Plate Onput Coupling (Blocking) Capacitor
Ca*:
Direct Interelectrode Capacitance - Anode or Plate to all other Electrodes and Shields
Caa':
Direct Interelectrode Capacitance - Plate to plate of two dissimilar sections
Caa/a':
Direct Interelectrode Capacitance between the plates of two sections to the plate of a third section
Caa/g':
Direct Interelectrode Capacitance between the plates of two sections to the grid of a third section
Caa/g1':
Direct Interelectrode Capacitance between the plates of two sections to the grid No.1 of a third section
Ca/ag':
Direct Interelectrode Capacitance - Plate of one section to plate and grid of the other section
Cag':
Direct Interelectrode Capacitance - Plate of one unit to grid of the other unit
Cag1':
Direct Interelectrode Capacitance - Plate of one unit to control-grid of the other unit
Ca/g2s:
Direct Interelectrode Capacitance - Plate to Grid No.2 and internal shield
Ca/gf:
Direct Interelectrode Capacitance - Plate to Grid and Heater (Grounded-Grid Circuit Output Capacitance)
Cak':
Direct Interelectrode Capacitance - Plate of one unit to cathode of the other unit
Ca/kf:
Direct Interelectrode Capacitance - Plate to Cathode and Heater. Plate Input Capacitance
Ca/kfm:
Direct Interelectrode Capacitance - Plate to Cathode, Heater, and Metal Shell. Plate Input Capacitance
Ca/kg2:
Direct Interelectrode Capacitance: Plate to Cathode + Grid No.2
Ca/
kg2g3:
Direct Interelectrode Capacitance: Plate to Cathode + Grid No.2 + Grid No.3
CaL:
Plate Load or Filter Capacitor - Bypass Capacitor
Cav:
Bypass Capacitor Following Plate Series Resistor
Cb:
Bypass Capacitor
Cc:
Compensation Capacitor
CF:
Characteristics Functions
Cg:
Grid Input Coupling (Blocking) Capacitor
Cg1:
Control-Grid Input Coupling (Blocking) Capacitor
Cg1':
Control-Grid Input Coupling (Blocking) Capacitor for Following Stage
Cg1*-k:
Direct Interelectrode Capacitance - Grid No.1 to All Other Electrodes Except Cathode
Cg1f:
Direct Interelectrode Capacitance - Grid No.1 to Heater
Cg1g2s:
Direct Interelectrode Capacitance: Grid No.1 to Grid No.2 and internal shield
Cg1/kf:
Direct Interelectrode Capacitance: Grid No.1 to Cathode + Heater
Cg1/kg2:
Direct Interelectrode Capacitance: Grid No.1 to Cathode + Grid No.2
Cg1/
kg2g3:
Direct Interelectrode Capacitance: Grid No.1 to Cathode + Grid No.2 + Grid No.3
Cg2:
Screen-Grid Bypass or Coupling (Blocking) Capacitor
Cg2g1:
Direct Interelectrode Capacitance - Grid No.2 to Grid No.1, Oscillator Anode g2 to Oscillator Grid g1
Cg2s/kf:
Direct Interelectrode Capacitance: Grid No.2 and internal shield to Cathode + Heater
Cg3*:
Direct Interelectrode Capacitance - Grid No.3 to All Other Electrodes
Cg3g1:
Direct Interelectrode Capacitance - Grid No.3 to Grid No.1
Cg3g2:
Direct Interelectrode Capacitance - Grid No.3 to Grid No.2
Cg4g1:
Direct Interelectrode Capacitance - Grid No.4 to Grid No.1, Control Grid g4 to Oscillator Grid g1
Cg4g2:
Direct Interelectrode Capacitance - Grid No.4 to Grid No.2
Cg4/
g3g1:
Direct Interelectrode Capacitance - Grid No.4 to Grid No.3 and Grid No.1
Cgf:
Direct Interelectrode Capacitance - Grid No.1 to Heater
Cgk':
Direct Interelectrode Capacitance - Grid of one unit to cathode of the other unit
Cin':
Input Capacitance of grounded-cathode circuit at specified operating bias condition
Ck:
Cathode Bypass Capacitor
Ck*:
Direct Interelectrode Capacitance - Cathode to all other Electrodes
Ck*-g1:
Direct Interelectrode Capacitance - Cathode to All Other Electrodes Except Grid No.1
Cka':
Direct Interelectrode Capacitance - Cathode to plate of two dissimilar units
Ck/af:
Direct Interelectrode Capacitance - Cathode to Anode and Heater
Ck/afm:
Direct Interelectrode Capacitance - Cathode to Anode, Heater, and Metal Shell. Cathode Capacitance
Ckg':
Direct Interelectrode Capacitance - Catode of one unit to grid of the other unit
Ck/gf:
Direct Interelectrode Capacitance - Cathode to Grid and Heater (Grounded-Grid Circuit Input Capacitance)
CkL:
Filter-Input Capacitor
CL:
Filter-Output Capacitor
Class:
Class of Amplifier Operating Conditions
Cout@a:
Plate Output Capacitance
Cout@g2:
Grid No.2 Output Capacitance (Oscillator Section)
Cpk:
Capacitance between both Cathode-Side Deflecting Plates
Cps:
Capacitance between both Screen-Side Deflecting Plates
CT:
Total Capacitance
dIM:
Intermodulation Distortion Products measured with reference to either of the two tones
d2:
2nd-Order Harmonic Distortions - Non-linear Distortions
d3:
3rd-Order Harmonic Distortions - 3rd-Order Intermodulation Products measured with reference to either of the two tones
d5:
5th-Order Harmonic Distortions - 5th-Order Intermodulation Products measured with reference to either of the two tones
Dia.
Tube Diameter - Screen Diameter of Cathode-Ray Tubes
dIk/dt:
Rise of Cathode Current
dpk:
Deflection Factor of the Cathode-Side Deflection Plates (Signal Deflection Y)
Dpk:
Deflection Mode of the Cathode-Side Deflection Plates: symmetrical, asymmetrical
dps:
Deflection Factor of the Screen-Side Deflection Plates (Time-Base Deflection X)
Dps:
Deflection Mode of the Screen-Side Deflection Plates: symmetrical, asymmetrical
dUa:
Arcing-Voltage Change at Full Operating-Current Range
dUa/dUg:
Grid Control Ratio - the slope of the straight portion of the control characteristic
dUa/ dUg1:
Grid No.1 Control Ratio - the slope of the straight portion of the control characteristic
dUa/ dUg2:
Grid No.2 Control Ratio - the slope of the straight portion of the control characteristic
dUg:
Grid Voltage Change for the Indicated Anode Current Change
Equiv.
EQUIV.
Equivalent Type for Replacement Purposes (Please note: Minor changes of characteristics should be taken into account.
Even equal types are prone to manufacturing tolerances, so it is always recommended to check the affected stage for correct parameters, as are biasing or capacitances at radio-frequency sections)
eta:
Efficiency - Plate Efficiency
eta:
Output-Circuit Efficiency
eta:
Rectification Efficiency
fin:
Input Frequency
Fluor.
Colour of Screen Fluorescence of Cathode-Ray Tubes
fmax:
Maximum Operating Frequency - Maximum Usable Operating Frequency at Reduced Input
fout:
Output Frequency
fp:
Pulse Repetition Frequency
fres:
Resonant Frequency
G:
Gain
Gp:
Power Gain
h:
Character Height on Display Tubes
Ia:
Difference in Plate Current Between Units
Iag2:
Common Plate and Grid-No.2 (Screen-Grid) Current at Triode Connection
Ia (I):
Anode (Plate) Current of Stage No.1
Ia (II):
Anode (Plate) Current of Stage No.2
Iaa:
Plate Current of Both Units
Ib:
Operating Current Range
Ibb:
Common Plate and Screen-Grid Current for Both Units
Igg:
Grid Current for Both Units
Ig1g1:
Grid-No.1 (Control-Grid) Current for Both Units
Ig1g3:
Common Grid-No.1 and Grid-No.3 (Control-Grids) Current
Ig2g2:
Grid-No.2 (Screen-Grid) Current for Both Units
Ig2g4:
Grid-No.2-and-No.4 (Screen-Grid) Current
Ig2g3g4:
Grid-No.2-and-No.4 (Screen-Grid) and Grid-No.3 Current
Ig3g3:
Grid-No.3 (Suppressor-Grid) Current for Both Units
Ik=:
Half-Wave Rectified Output Current
Ikk:
Common Cathode Current of Both (Multiple) Units
Ikk=:
Rectified Output Current of Both (Multiple) Units
Iks:
Emission Current - Maximum Cathode Saturation Current
Is:
Beam Current
K:
Coupling Factor - Feedback Ratio Ug~/Ua~
k2:
2nd Order Harmonic Distortions
k3:
3rd Order Harmonic Distortions
k5:
5th Order Harmonic Distortions
Len.
Seated Tube Length (without base pins)
Lg2:
Grid-No.2 (Screen-Grid) Choke, Grid-No.2 Circuit Inductance
LkL:
Filter-Input Choke
m:
Modulation Factor
mx:
Cross-Modulation Factor
Paa:
Plate Dissipation of Both Units Operating, or of all Three Units Operating
Pa+g2:
Pag2:
Common Plate and Screen-Grid Dissipation at Triode Connection (the suppressor grid is tied to the cathode usually)
Pbaa:
Plate Input of Both Units
Pbg2:
Grid-No.2 (Screen-Grid) Input
Pers.
Screen Persistence of Cathode-Ray Tubes - Decay of brightness to 10% of initial value
Pg:
Grid Dissipation
Pg1:
Grid-No.1 (Control-Grid) Dissipation
Pg1g2:
Dissipation of Grid-No.1 and No.2 tied together
Phos.
Colour of Screen Phosphorescence (Persistence) of Cathode-Ray Tubes
Pin (PK):
Peak Power Input
Pg2g4:
Grid-No.2-and-No.4 (Screen-Grid) Dissipation
Pg3g5:
Grid-No.3-and-No.5 (Screen-Grid) Dissipation
Pin:
Driving Power
PoD:
Maximum Signal Driver Power Output
Pload:
PoL:
Power Output at Load - Useful Power Output, measured at load of output circuit having indicated efficiency
eta.
Pout (PK):
Peak Power Output
Q:
Figure of Merit
Qin:
Figure of Merit of the input tank circuit
R1:
(Upper) Voltage-Divider Resistor No.1
R2:
(Lower) Voltage-Divider Resistor No.2
R3:
Resistor No.3
RaaL:
Effective Load Resistance Plate-to-Plate
rac:
Converter Service Plate Resistance
Rag:
Plate-to-Grid Resistor
RaL (I):
Plate Resistor - Plate Load Resistance of Stage No.1
RaL (II):
Plate Resistor - Plate Load Resistance of Stage No.2
Rf–:
Resistor across the negative filament section for shunting cathode current from the positive filament section.
Rg':
Control-Grid Resistor for Following Stage
Rg~:
AC Control-Grid Resistance
Rg1':
Control-Grid Resistor for Following Stage
Rg1g3:
Common Grid-No.1 and Grid-No.3 (Control-Grids) Resistor
Rg1@HD:
Grid-No.1 Circuit Resistance for horizontal-deflection circuit
Rg1@Rk:
Grid-Circuit Resistance when operated as cathode follower
Rg1s:
Grid-No.1 (Control-Grid) Stopper Resistor (to prevent parasitic oscillations)
Rg2+:
Grid-No.2 (Screen-Grid) Voltage-Divider Resistor to Positive Supply Voltage
Rg2–:
Grid-No.2 (Screen-Grid) Voltage-Divider Resistor to Ground
Rg2g2:
Common Grid-No.2 (Screen-Grid) Series Resistor for Both Units
Rg2g4:
Grid-No.2-and-No.4 (Screen-Grid) Series Resistor
Rg2g4+:
Grid-No.2-and-No.4 (Screen-Grid) Voltage-Divider Resistor to Positive Supply Voltage
Rg2g4–:
Grid-No.2-and-No.4 (Screen-Grid) Voltage-Divider Resistor to Ground
Rg2s:
Grid-No.2 (Screen-Grid) Stopper Resistor (to prevent parasitic oscillations)
Rgs:
Grid Stopper Resistor (to prevent parasitic oscillations)
RkI:
Cathode-Bias Resistor of Unit No.1
Rk (I):
Cathode-Bias Resistor of Stage No.1
RkII:
Cathode-Bias Resistor of Unit No.2
Rk (II):
Cathode-Bias Resistor of Stage No.2
Rkk:
Common Cathode-Bias Resistor for Both Units
RkL:
Cathode Load Resistor
Rp:
Auxiliary Electrode p Series Resistor - Deflecting Plate Circuit Resistance
s:
Sensitivity (of Photo Tubes)
S/C:
Figure of Merit - Transconductance/Capacitances C=Cin+Cout
Seff:
Effective Slope
spk:
Deflection Sensitivity of the Cathode-Side Deflection Plates (Signal Deflection Y)
sps:
Deflection Sensitivity of the Screen-Side Deflection Plates (Time-Base Deflection X)
t:
Operating Time
tav:
Averaging Time
Tc:
Radiator Core Temperature
Tcap:
Cap Temperature - Temperature of Plate Terminals
TK[Ua]:
Plate Voltage (Arcing Voltage) Temperature Coefficient
to:
Life Expectancy - Guaranteed Operating Lifetime (Continuous Service)
toi:
Life Expectancy - Guaranteed Intermittent Operating Lifetime
toff:
Turn-Off Time - De-Ionization Time of Thyratrons
ton:
Turn-On Time - Trigger or Ionization Time of Thyratrons
top:
toP:
Operating time - Startup time
Top:
Operating Temperature - Condensed-Mercury Temperature
Tpin:
Base Pin Temperature
tp/T:
Duty Cycle
Ts:
Anode/Plate Seal Temperature - Tube Seal Temperature
Tsa:
Anode/Plate Seal Temperature, Anode/Plate Terminal Temperature
Tsg:
Grid Seal Temperature, Grid Terminal Temperature
Tsk:
Cathode Seal Temperature, Cathode Terminal Temperature
TYP:
Typical or Average Rating
Ua2:
Post-Acceleration Voltage at a2
Ua3:
Post-Acceleration Voltage at a3
Ua~:
AC Plate Voltage Output Signal - AC Plate Supply Voltage
Uaa~:
AC Plate-to-Plate Supply Voltage
Uae:
Anode Contact Potential
Ua+g2:
Common Plate and Screen-Grid Voltage at Triode Connection (the suppressor grid is tied to the cathode usually)
Ua (IGN)
Ignition Voltage
Uao:
Plate Voltage of Cold Tube or Peak Value of Plate Signal Voltage
Ua (OFF):
Plate (Anode) Off-State Voltage - Extinction Voltage
Ua (ON):
Plate (Anode) On-State Voltage - Arcing Voltage
Uap (PK):
Peak Voltage between Anode and Deflecting Plate
Uaq:
Quiescent Plate Voltage
Ua/
Ug (IGN):
Plate-Voltage to Grid-Voltage Ratio at Ignition
Ub~:
Transformer AC Voltage used for Plate Supply Voltage
Ub2:
Secondary Supply Voltage
Uba~:
AC Plate (Anode) Supply Voltage
Ubg:
Grid Supply Voltage, including voltage drop of cathode and series resistance
Ufk (AV):
Average Heater-to-Cathode Voltage
Ufko+
(PK):
Peak Heater-to-Cathode Voltage under cutoff conditions in direct-coupled cathode-drive circuits - Cathode Positive with Respect to Heater - Total DC and Peak
Ug=:
DC Grid Voltage Input (Referred to Ground)
Ug~:
AC Grid Voltage Input Signal
Uge:
Grid Contact Potential
Ugg~:
Peak Audio-Frequency Grid-to-Grid Voltage
Ug (ON):
Grid On-State Voltage - Arcing Voltage
Ug1 (CP):
Grid-No.1 Control Pulse
Ug1 (ON):
Grid-No.1 On-State Voltage - Arcing Voltage
Ug1 (OFF):
Grid-No.1 Cutoff Voltage - Grid-No.1 Off-State Voltage
Ug1~
(OSC):
Oscillator Grid-No.1 Voltage Input
Ug1c~:
Signal Handling Capacity Carrier Voltage at Grid-No.1
Ug1e:
Grid Contact Potential at Grid-No.1
Ug1g1~:
Peak Audio-Frequency Grid-to-Grid (Control-Grid) Voltage
Ug2~:
Grid-No.2 (Screen-Grid) AC Voltage Input
Ug2g4:
Grid-No.2-and-Grid-No.4 (Screen-Grid) Voltage
Ug2 (ON):
Grid-No.2 On-State Voltage - Arcing Voltage
Ug2q:
Quiescent Grid-No.2 (Screen-Grid) Voltage
Ug3o:
Grid-No.3 Voltage at Zero Grid-No.3 Current (Cutoff or Cold Tube)
Ug3~
(OSC):
Oscillator Grid-No.3 Voltage Input
Ug3g5:
Grid-No.3-and-Grid-No.5 (Screen-Grid) Voltage
Uin~:
AC Input Voltage - Signal Input
Uk=:
Rectified DC Output Voltage
Ukk:
Voltage Between Two Cathodes - Voltage Between the On-State Cathode and All Off-State Catodes
Ukk (PK):
Peak Voltage Between Two Cathodes
Un~:
Noise Voltage
Uout:
DC Output Voltage
Uout~:
AC Output Voltage - Signal Output
Up:
Voltage at Auxiliary Electrode p
Us:
Screen Voltage
V:
Amplification Factor - Voltage Amplification - Gain
Voltage Ratio
Uout~/
Uin~
X:
X-Radiation Rating
Zg:
Signal Source Impedance
Zg2:
Grid-No.2 Circuit Impedance
Zin:
Input Impedance - Driving Impedance
Zout:
Output Impedance
µag1:
Amplification Factor Anode (Plate) to Grid-No.1
µag3:
Amplification Factor Anode (Plate) to Grid-No.3
alpha:
Shadow Angle
Angle d'ombre
Cag2:
Direct Interelectrode Capacitance - Plate to Grid No.2
Capacité anode/grille n° 2
Cag3:
Direct Interelectrode Capacitance - Plate to Grid No.3
Capacité anode/grille n° 3
Cag4:
Direct Interelectrode Capacitance - Plate to Grid No.4
Capacité anode/grille n° 4
Cg1g1:
Direct Interelectrode Capacitance - Grid No.1 of Unit No.1 to Grid No.1 of Unit No.2
Capacité entre grilles n° 1 de deux sections
Cg1k:
Direct Interelectrode Capacitance: Grid No.1 to Cathode
Capacité grille n° 1/cathode
Cg2k:
Direct Interelectrode Capacitance: Grid No.2 to Cathode
Capacité grille n° 2/cathode
Cgk:
Direct Interelectrode Capacitance: Grid to Cathode
Capacité grille/cathode
Cg/kf:
Direct Interelectrode Capacitance: Grid to Cathode and Heater
Capacité grille/cathode et filament
Cin@g1:
Input Capacitance of Control-Grid g1
Capacité d'entrée grille n° 1 / toutes les autres
Cin@g2:
Input Capacitance of Screen-Grid g2
Capacité d'entrée grille n° 2 / toutes les autres
Cin@g3:
Input Capacitance of Control-Grid g3
Capacité d'entrée grille n° 3 / toutes les autres
Cin
@g3g1:
Input Capacitance of Common Control-Grids g3 and g3
Capacité d'entrée grille n° 3 et grille n° 1 / toutes les autres
Cin@g4:
Input Capacitance of Control-Grid g4
Capacité d'entrée grille n° 4 / toutes les autres
Cin@k:
Cathode Input Capacitance
Capacité d'entrée cathode / toutes les autres
EOL
End point of life
Fin de la durée de vie
F:
Noise Factor - Noise Figure
f:
Frequency Variation - Bandwidth
Ifk:
Leakage Current between Heater and Cathode
Ig (PK):
Peak Grid Current
Courant de crête de grille
Ig1 (ON):
Critical Grid-No.1 (Control-Grid) Current
Courant de grille n° 1 critique
Ig1 (PK):
Peak Grid-No.1 Current
Courant de crête de grille n° 1
Ig2 (PK):
Peak Grid-No.2 Current
Courant de crête de grille n° 2
NOM
Nominal Rating - Nominal operating conditions
Valeur nominal - Conditions nominales d'emploi
Pa (PK):
Maximum-Signal Plate (Anode) Dissipation (during the periods of maximum input of speech and music signals)
Dissipation de crête d'anode
Pa@Rk:
Plate Dissipation at Cathode-Bias Operation (Self-Bias)
Dissipation d'anode - avec une polarisation automatique (cathodique)
Pa@Ug1:
Plate Dissipation at Fixed Bias
Dissipation d'anode - avec une polarisation fixe
Pba:
Plate Input
Puissance appliquée à l'anode
Pg2 (PK):
Maximum-Signal Grid-No.2 (Screen-Grid) Dissipation (during the periods of maximum input of speech and music signals, or during the heating-up period)
Dissipation de crête de grille n° 2
Ra:
Plate resistor, plate-circuit resistance, effective plate-supply impedance per plate
Output transformer DC resistance
Résistance d'anode
Rav:
Bypassed Plate Series Resistor
Résistance d'anode
Rg@Ig:
Grid-Circuit Resistance for Contact-Potential-Bias Operation
Résistance du circuit de grille - avec polarisation par fuite de grille
Rg@Rk:
Grid-Circuit Resistance for Cathode-Bias Operation
Résistance du circuit de grille - avec une polarisation automatique (cathodique)
Rg@Ug:
Grid-Circuit Resistance for Fixed-Bias Operation
Résistance du circuit de grille - avec une polarisation fixe
Rg1@Ig1:
Grid-Circuit Resistance for Contact-Potential-Bias Operation
Résistance du circuit de grille n° 1 - avec polarisation par fuite de grille n° 1
Rg1@Rk:
Grid-Circuit Resistance for Cathode-Bias Operation (Self-Bias)
Résistance du circuit de grille n° 1 - avec une polarisation automatique (cathodique)
Rg1@Ug1:
Grid-Circuit Resistance for Fixed-Bias Operation
Résistance du circuit de grille n° 1 - avec une polarisation fixe
Rg3@Rk:
Grid-No.3-Circuit Resistance for Cathode-Bias Operation
Résistance du circuit de grille n° 3 - avec une polarisation automatique (cathodique)
Rg3@Ug3:
Grid-No.3-Circuit Resistance for Fixed-Bias Operation
Résistance du circuit de grille n° 3 - avec une polarisation fixe
Rkf:
External Resistance between Cathode and Heater
Résistance entre la cathode et le filament
S/2
CT:
Maximum usable operating frequency of a wideband amplifier
Facteur de mérite d'amplificateur a large bande
Sag1:
Grid-No.1 Transconductance
Pente anode-grille n° 1
Sag3:
Grid-No.3 Transconductance
Pente anode-grille n° 3
Sc:
Conversion Transconductance
Pente de conversion
Sg2g1:
Grid-No.1 Transconductance with Reference to Grid No.2
Pente grille n° 2 / grille n° 1
TA:
Tamb:
Ambient Temperature
tf:
Filament or Heater Warm-Up Time
tp:
tP:
Pulse Width - Pulse Duration
Uag:
Plate-to-Grid Voltage
Tension entre anode et grille
Uag1:
Plate-to-Grid-No.1 Voltage
Tension entre anode et grille n° 1
Ua (PIV):
Peak Inverse Plate Voltage
Tension inverse de crête d'anode
Ua (PK):
Peak Forward Plate Voltage
Tension de crête d'anode
Uag (PK):
Peak Plate-to-Grid Voltage
Tension de crête entre anode et grille
Uba:
DC Plate (Anode) Supply Voltage, including voltage drop of cathode and load resistance
Tension d'alimentation d'anode
Ubg1:
Grid-No.1 (Control-Grid) Supply Voltage, including voltage drop of cathode and series resistance
Tension d'alimentation de grille n° 1
Ubg2:
Grid-No.2 (Screen-Grid) Supply Voltage, including voltage drop of cathode and series resistance
Tension d'alimentation de grille n° 2
Ubg2g4:
Grid-No.2-and-Grid-No.4 (Screen-Grid) Supply Voltage
Tension d'alimentation de grilles n° 2 et 4
Ubg3:
Grid-No.3 (Suppressor-Grid) Supply Voltage, including voltage drop of cathode and series resistance
Tension d'alimentation de grille n° 3
Ubg3g5:
Grid-No.3-and-Grid-No.5 (Screen-Grid) Supply Voltage
Tension d'alimentation de grilles n° 3 et 5
Ufk (DC):
DC Heater-to-Cathode Voltage
Tension directe entre filament et cathode
Ufk (PK):
Peak Heater-to-Cathode Voltage
Tension de crête entre filament et cathode
Ufk–:
Heater-to-Cathode Voltage - Cathode Negative with Respect to Heater
Tension entre le filament et la cathode - cathode négatif par rapport au filament
Ufk– (DC):
DC Heater-to-Cathode Voltage - Cathode Negative with Respect to Heater
Tension directe entre filament et cathode - cathode négatif par rapport au filament
Ufk– (PK):
Peak Heater-to-Cathode Voltage - Cathode Negative with Respect to Heater - Total DC and Peak
Tension de crête entre filament et cathode - cathode négatif par rapport au filament
Ufk+:
Heater-to-Cathode Voltage - Cathode Positive with Respect to Heater
Tension entre le filament et la cathode - cathode positif par rapport au filament
Ufk+ (DC):
DC Heater-to-Cathode Voltage - Cathode Positive with Respect to Heater
Tension directe entre filament et cathode - cathode positif par rapport au filament
Ufk+ (PK):
Peak Heater-to-Cathode Voltage - Cathode Positive with Respect to Heater - Total DC and Peak
Tension de crête entre filament et cathode - cathode positif par rapport au filament
Ufk=:
DC Heater-Cathode Potential - Heater-to-Cathode DC-Voltage Component
Tension directe entre filament et cathode
Ufk~:
Heater-to-Cathode AC-Voltage Component
Tension alternative entre filament et cathode
Ug (PK):
Peak Grid Voltage
Tension de crête de la grille
Ug1 (PIV):
Peak Inverse Grid-No.1 (Control-Grid) Voltage
Tension inverse de crête de la grille n° 1
Ug1 (PK):
Peak Grid-No.1 (Control-Grid) Voltage
Tension de crête de la grille n° 1
Ug2g1:
Grid-No.2-to-Grid-No.1 Voltage
Tension entre grille n° 2 et grille n° 1
Ug3 (PK):
Peak Grid-No.3 (Suppressor-Grid) Voltage
Tension de crête de la grille n° 3
Uosc~:
AC Oscillator Voltage
Tension d'oscillation
w:
Net Weight - Mass
Poids net - masse
µg2g1:
Amplification Factor Grid-No.2 to Grid-No.1
Facteur d'amplification g2 g1
Brief overwiew - Maximum ratings
Aperçu bref - Valeurs limites
Caa:
Direct Interelectrode Capacitance - Plate of section No.1 to plate of section No.2
Capacité entre anodes de deux sections
Caf:
Direct Interelectrode Capacitance - Plate or Anode to Heater or Filament
Capacité anode/filament
Cag:
Direct Interelectrode Capacitance - Plate to Grid
Capacité anode/grille
Cag1:
Direct Interelectrode Capacitance - Plate to Grid No.1
Capacité anode/grille n° 1
Cak:
Direct Interelectrode Capacitance: Plate to Cathode - Allowable External Capacitance between Anode and Cathode of a Gas-Discharge Voltage Stabilizer
Capacité anode/cathode
Cin:
Input Capacitance - respective
Cin@g1 in grounded-cathode circuit and
Cin@k in grounded-grid circuit
Capacité d'entrée
Ckf:
Direct Interelectrode Capacitance - Cathode to Heater
Capacité cathode/filament
Cout:
Output Capacitance
Capacité de sortie
f:
Operating Frequency - Maximum Operating Frequency at Full Input
Fréquence de fonctionnement
Ia:
Anode (Plate) Current
Courant d'anode - Courant anodique
Ia (FSM):
Maximum Anode (Plate) Forward-Current Surge - Transient Rating - Duration up to 0.1 seconds
Courant d'anode accidentel de pointe pendant 0,1 seconde max.
Ia (PK):
Peak Anode (Plate) Current - Steady-State or Repetitive Rating
Courant de crête (récurrent) d'anode
If:
Heater or Filament Current
Courant filament
Ig:
Grid Current
Courant de grille
Ig1:
Grid-No.1 (Control-Grid) Current
Courant de grille n° 1
Ig2:
Grid-No.2 (Screen-Grid or Shadow-Grid) Current
Courant de grille n° 2
Ig3:
Grid-No.3 (Suppressor-Grid, Control-Grid, or Screen-Grid) Current
Courant de grille n° 3
Ig5:
Grid-No.5 (Screen-Grid) Current
Courant de grille n° 5
Ik:
Cathode Current
Courant de cathode - Courant moyen de cathode
Ik (FSM):
Maximum Cathode Current Surge - Transient Rating - Duration up to 0.1 seconds
Courant de cathode accidentel de pointe pendant 0,1 seconde max.
Ik (PK):
Peak Cathode Current
Courant de crête de cathode
k:
Total Harmonic Distortions
Distorsion totale
MAX
Maximum Rating
Valeur maximum
MIN
Minimum Rating
Valeur minimum
Pa:
Plate Dissipation
Dissipation d'anode - Puissance dissipée sur l'anode
Pg2:
Grid-No.2 (Screen-Grid or Shadow-Grid) Dissipation (or Input)
Dissipation de grille n° 2 - Puissance dissipée sur la grille 2
Pg3:
Grid-No.3 (Suppressor, or Screen, or 2nd Control-Grid) Dissipation (or Input)
Dissipation de grille n° 3
Pg5:
Grid-No.5 (Screen-Grid) Dissipation (or Input)
Dissipation de grille n° 5
Pout:
(Average) Power Output
Puissance de sortie
ra:
Internal Resistance - Dynamic Plate Resistance
Résistance interne
RaL:
Plate Resistor - Plate Load Resistance - Effective RF Load Resistance
Résistance de charge d'anode
req:
Equivalent Noise Resistance
Résistance équivalente de bruit
rin:
Radio-Frequency Input Resistance
Résistance d'entrée R.F.
Rg:
Grid Resistor
Résistance du circuit de grille
Rg1:
Grid-No.1 (Control-Grid) Resistor
Résistance du circuit de grille n° 1
Rg2:
Grid-No.2 (Screen-Grid) Series Resistor - Shadow-Grid Resistor
Résistance du circuit de grille n° 2
Rg3:
Grid-No.3 (Suppressor or 2nd Control-Grid) Resistor
Résistance du circuit de grille n° 3
Rg4:
Grid-No.4 (Control-Grid) Resistor
Résistance du circuit de grille n° 4
Rg5:
Grid-No.5 (Screen-Grid) Series Resistor
Résistance du circuit de grille n° 5
Rk:
Cathode-Bias Resistor
Résistance de cathode - Résistance de polarisation
S:
Mutual Conductance - Transconductance
Pente
Ta:
Plate (Anode) Temperature
Température d'anode
Tb:
Bulb Temperature
Température de l'ampoule au point le plus chaud
Ua:
Plate (Anode) Voltage
Tension d'anode
Uao:
Plate Voltage at Zero Plate Current (Cutoff or Cold Tube)
Tension d'anode à courant nul
Ub:
DC Plate-Supply Voltage (referenced to ground)
Tension d'alimentation
Ubo:
DC Supply Voltage (referenced to ground) at Zero Plate Current (Cutoff or Cold Tube)
Tension d'alimentation à courant nul
Uf:
Heater or Filament Voltage
Tension filament
Ufk:
Heater-to-Cathode Voltage (DC or AC/RMS)
Tension entre le filament et la cathode
Ug:
Grid Voltage
Tension de grille
Ug1:
Grid-No.1 (Control-Grid) Voltage
Tension de grille n° 1
Ug1~:
Grid-No.1 (Control-Grid) AC Voltage Input
Tension d'entrée
Ug2:
Grid-No.2 (Screen-Grid or Shadow-Grid) Voltage - Focusing Voltage
Tension de grille n° 2
Ug2o:
Grid-No.2 Voltage at Zero Grid-No.2 Current (Cutoff or Cold Tube)
Tension de grille n° 2 à courant nul
Ug3:
Grid-No.3 (Suppressor, or Screen, or 2nd Control-Grid) Voltage - Focusing Voltage
Tension de grille n° 3
Ug4:
Grid-No.4 (Screen-Grid or Control-Grid) Voltage
Tension de grille n° 4
Ug5:
Grid-No.5 (Screen-Grid) Voltage
Tension de grille n° 5
µ:
Static Amplification Factor
Facteur d'amplification - Coefficient d'amplification
