TRUE AND WARM TONE WITH DEFINED PUNCH IN LOWER MIDS, PERFECT CHOICE FOR 1ST STAGE OF ANY HIGH GAIN AMPLIFIER
This new TAD 12AY7 HIGHGRADE ...

Tube Amp Doctor Ez81/6Ca4 Premium Tube Marshall 1974X
EZ81/6CA4 PREMIUM SELECTED – TUBE AMP DOCTOR
COMPACT SIZE FOR USE IN SMALLER AMPS
The TAD EZ81/6CA4 is a small rectifier tube for 6.3V filaments. It is used in smaller amps, such as the Marshall 1974X, the TAD 18W Plexi Kit, Silvertone amps and in various Hammond organ amplifiers. The TAD EZ81/6CA4 is a true full power EZ81. Also used in many audio amps and in those unbelievably good sounding old tube radios.