EF91 CV4014 MULLARD NOS MATCHED PAIR VALVE TUBE - Langrex
Elektrische preamp Victory amplification V4 V30 The Countess
Groove Street 98 Brussels - Victory tube preamp pedals info : Using the EC900 (a miniature VHF amplifier triode) and CV4014 (pentode designed for operation in areas of vibration, especially aircraft) inside