1 tube) 5881 International Japan black plate NOS 1960”s

70ma

Gm=6300

Tested on Maxi-Matcher

(Vplate=325V, Vscreen=325V, Vgrid=-24V, triode connected)

(Good Current Range = 45-60ma)

Recommended for

– Pro Dawg (copy of 5E5A Circuit)
– Naylor SD60
– Fender Bassman RI 1956, 1959
– Fender Pro-Amp 1962
– Victoria Regal 2007
– Melody SP3 amp
– Heath W4AM mono amps
– Audio Note SORO linestage
– Mesa Boogie Mark 4
– Supratek
– CARR Rambler
– Line6 Spider Valve 112 (2007) Reinhold Bogner Amplification UK
– Clark Tyger 2011
– Clark Piedmont 2003