Mullard CV3986 6021 - 1975 MINT NOS NIB Mitcham Special Grade Plug&Play for ECC88/E88CC/6922/E188CC/7308/6DJ8 NOVIB-ULTRA© mu=35 High Elastance vibration reduction base. 9-PIN B9A NOVAL - Made in Gt. Britain (Singles/M. Pairs) - AKA Mini-Mullard The BEL Is an overlooked

The BEL Is an overlooked tube that has very good performance and for its cost is a top contender

but the tubes are from 1961 production

Brand New MINT NOS NIB Rare BRIMAR CV4035 Box Plate Military tubes

In this process I volume match to the decibel

Mullard CV3986 6021 - 1975 MINT NOS NIB Mitcham Special Grade Plug&Play for ECC88/E88CC/6922/E188CC/7308/6DJ8 NOVIB-ULTRA© mu=35 High Elastance vibration reduction base. 9-PIN B9A NOVAL - Made in Gt. Britain (Singles/M. Pairs) - AKA Mini-Mullard The BEL Is an overlookedNew and Exclusive at Pulse. This Mini Mullard ECC88 E88CC E188CC sub will blow you away. It joins our Top 4 reference tubes in the ECC88 6DJ8 E88CC 6922 E188CC 7308 family. Our custom base makes this tube Plug&Play in any 9 pin socket. No Microphonics Common problem with fragile frame grid tubes of the ECC88 6DJ8 family, as per the RCA specs (see below) this tube is solid as a rock. Also we have potted this pencil thin tube in a High Elastance base