(!!!) (Best Singles) 374A Western Electric black plate used/test like new 1960's (21-25ma) (8 in stock)374A Western Electric black plate used test like new 1960's with "D" getter halo: 1) 21ma Gm=3400 (1967) 1) 24ma Gm=3200 (1965) 1) 23. 2ma Gm=3100 (1966) 1) 22. 2ma Gm=3100 (1965) 1) 23. 8ma Gm=3400 (1969) 1) 21ma Gm=3400 (1967) 0) 23. 4ma Gm=3300 (1966) 1) 29ma Gm=3600 (1967) 1) 24ma Gm=3500 (1967) MAKE TUBE SELECTION AT CHECKOUT Tested on Amplitrex Vplate=135V Vscreen=135V Vgrid= 18V Good like new Ma range = 21 25ma Good like new Gm range = 3000