Listed in Brans as equivalent — similar power pentode
Electrical Specifications
Absolute Maximum
Anode Dissipation (max)Anode Dissipation (max)18W
Typical Operating
Anode Voltage (typical)Anode Voltage250V
Screen Voltage (typical)Screen Voltage250V
Grid 1 Bias VoltageGrid 1 Bias Voltage-16V
Notes
The EL35 is the Octal-base version of the EL5. Electrically identical but uses the International Octal (IO) base instead of the P8A side-contact base.
Brans Vademecum lists EL35 with equivalents including EL5, EL50, EL12/325, EL12/375, EL12spez, 4654K, and 4689P — all in the same power pentode family.
CV1286 is the UK military designation.
Very rare tube — found in only 3 radio models at Radiomuseum (dated 1945 and 1950).
Heater current 1.35 A — not suitable for series-heater strings.
Anode connection via top cap for improved high-voltage isolation.