Data: MediumMedium quality — at least 60% of universal parameters and pins are present, but some key data is missing. Verify specific values against datasheets before critical use.
Anode Voltage (max)DC Plate-Supply Voltage (max)550V
Peak Anode Voltage (max)Peak Positive Pulse Plate Voltage (max)5,500V
Screen Voltage (max)Screen Voltage (max)175V
Anode Dissipation (max)Plate Dissipation (max)11W
Notes
Rated for horizontal-deflection service in 525-line, 30-frame TV systems; duty cycle of voltage pulse must not exceed 15% of one scanning cycle.
In stages operating with grid-leak bias, an adequate cathode-bias resistor or other suitable means is required to protect the tube in absence of excitation (Pa_max note).
Uses 6-pin octal shell (RETMA 6CK basing — B6-112 or B6-120); pins 4 and 6 are absent. Physical socket is standard octal.
12AV5-GA, 17AV5-GA, and 25AV5-GA are identical except for heater ratings (12.6V/0.6A, 16.8V/0.45A, 25V/0.3A respectively) and are not pin-for-pin equivalents in series-heater chains.
Peak positive pulse plate voltage of 5500V is an absolute maximum; combined supply variation, manufacturing variation, and control adjustments must not exceed this.
Triode-strapped data (mu=4.3) from GE datasheet ET-T902A: screen tied to plate at Eb=Ec2=150V, Ec1=-22.5V.
Output power and load resistance not specified — tube is rated for deflection service, not audio output.
Pout and rl not applicable for this deflection-service tube.
Pin Layout — IO
1Control Grid (Grid 1)
2Heater
3Cathode and Beam Plates
4
Socket-Compatible Tubes ⚠ Not electrically compatible