Classification-column type bulb of glass, copper ceramic base with four gold pins , oxide coated filamentary, carbon plate, triode.
Application-Audio power amplifier A-F, R-F of class B or R-F of class C. 
 

Nominal operating conditions and parametersFilament voltage……………………………………………………………10.0V
Nominal filament current……………………………………………………0.6 A
Plate voltage…………………………………………………………………900 V
Grid voltage…………………………………………………………………20 V
Plate current………………………………………………………………… 110 mA

Suggest operating conditions and parameters A-F of Class B power amplifier ( two tube )

 

Plate voltage	1250	1500	1500	V
Ia(max. sig. per tube )			210	Ma
Pa (in ) ( max. sig. per tube )			315	W
Pa( per tube)			125	W
Grid voltage		-16		V
Ug~ ( pk )	235	280		V
Ia (O)	148	84		Ma
Ia ( max. sig. )	500	600		Ma
Pd	6	7		W
Load resistance ( a-a )	6.7	8.2		kohms
Pout( max. sig. )	300	370

 

R-F of classB power amplifier of push-pull

Plate current	800	1000	1000	1250	V
Plate voltage	-125	-170	-175	-225	V
Grid voltage	4.5	4.6	4.6	6.6	kohms
Load resistance	80	70	40	40	mA
Signal voltage(pk)	177	240			V
Output powe	40	75	75	115	W