805 /D TJ Full Music

Nominal operating conditions and parameters
Filament voltage ..............................10V
Nominal filament current ...............3.2A
Plate voltage .....................................900V
Grid voltage ......................................20V
Plate current ....................................110mA

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

			Limiting value	V
Plate voltage	1250	1500	1500	V
La (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
La (O)	148	84		mA
La (max. sig)	500	600		mA
Pd	6	7		W
Load resistance (a-a)	6.7	8.2		k
Pout (max. sig)	300	370		W

R-F of class B power amplifier of push-pull

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

R-F of class B power amplifier

			Limiting value
Plate voltage	1250	1500	1500	V
Plate current	135	115	150	mA
Grid current	15	15		mA
Grid voltage		10		V
Signal voltage(pk)	70	70		V
Output power	55	57.5		W
Pd.	11	7.5		W
Plate dissiplation			85	W

R-F of class C power amplifier of single tube(max modulate coefficient shall be 1)

			Limiting value
Plate voltage	1000	1250	1250	V
Plate current	160	160	175	mA
Grid current	60	60	70	mA
Grid voltage	-155	-160	-500	V
Signal voltage(pk)	295	300		V
Output power	110	140	85	W
Pd.	16	16		W
Plate dissiplation			125	W

R-F of class C power amplifier and oscillater(each tube of key contral conditions for note modulate)

				Limiting value
Plate voltage	1000	1250	1500	1500	V
Plate current	200	200	200	210	mA
Grid voltage	-95	-100	-105	-500	V
Signal voltage(pk)	225	230	235		V
Output power	130	170	215		W
Pd.	8.5	8.5	8.5		W
Plate dissiplation				125	W

Characteristics-Average characteristics
Figure 3. shown typical curves of plate currents of grid voltage for several values of plate voltages. It is alternating-current filament supply.