(!!!) (Single 1963) 12AU7=ECC82 Mullard UK NOS 1963 faded printing (10.8/10.2ma)
(!!!) (Single) CV4003=M8136=12AU7 Mullard branded Philips box plates NOS 1975 (8.8/8.2ma)
(!!!) (Smooth Single) ECC82=12AU7 Ediswan Valve by Brimar England NOS ribbed plates large "O" getter halo 1962 (11.4/11.8ma)
