6cg7 tube Fivre Italy nos nib 6fq7
2 pieces = 2 tubes = two vintage vacuum tubes = 2 valves
long plate
ribbed plate
O getter halo
dark grey plate
For Maranz type 8
Double triode Twin triode Audio Frequency
6CG7 = 6CG7EH = 6FQ7
Other class quality (otherwise equal): 7026
Heater different: 12CG7 ; 8CG7
Other wirings: 6180
Other base: 6F8G ; 6SN7GT ; 7N7
year 1950's
Subsitution of / pre 6SN7GT 6F8G 7N7
Socket Noval, B9A
Filament heater Vf 6.3 Volt / If 0.6 Ampere / Indirect / Parallel / series ~ = AC/DC
Advertised by RCA as miniature version of 6SN7GT in 4th cover of Electronics, January 1955.
box 61