Used Vintage EL84 from ZAERIX

Test with L3-3

TUBE1-Ia = 44mA, S=11.5mA/V

 TUBE2-Ia = 44mA, S=11.5mA/V
TUBE3-Ia = 45mA, S=11.6mA/V
TUBE4-Ia = 45mA, S=12mA/V

TUBE5-Ia = 46mA, S=11.5mA/V

Where 100% is: Ia = 48mA, S=11mA/V