(!!!!!) (Best Single) 6V6GT Mullard UK black plate NOS 1960 era (48.8ma)

6V6GT Mullard UK black plate NOS 1960 era wrapped in original wrapping in white box 48.8ma Gm=4540   J=Tottenham plant   Matched on Amplitrex Vplate=250V Svcreen=250V Vgrid=-12.5V Good Ma range 35-45ma Good Gm range 3800-4200   - Fender Musicmaster Bass Guitar 1970- Fender Champion 600 (new)- Fender Tweed Champ 1960- Victoria Amp Model # 20122- Fender 57 Champ Reissue- Fender Deluxe 1963- Fender Tweed Champ with 5F1 circuit