6CA7 Sylvania 1970”s no printing used/strong in white box

94.3ma

Gm=10,100

Tested on Amplitrex

Good NOS range 70-90ma

Good Gm range 10K-12K

Recommended for

– AudioPrism Debut II

– Lectron JH50 power amp

– Matchless (35 watt Class A)

– Woo Audio

– Marshall 1987 head

– Marshall JMC 2000 DSL 100 watt 2003

– Marshall 50 watt Bass 1972 (model 1986)