File No.
649 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
OOcn3m
Solid State Division
Power
Transistors RCA1B04
JEOECTO·3
Silicon
Transistor for 120-Watt Quasi-Complementary-Symmetry Audio Amplifiers with Parallel Output
Transistors
H·1570
RCA 1804 is an n·p·n silicon pi-nu
transistor in a JEDEC TO-3 package.
This device is especially characterized for audio applications, and can be driven by RCA1Cl.
2 and RCA1C13
transistors.
The 120-watt amplifier circuit in Figs.
1 and 5 uses the RCA1804 in conjunction with eleven other discrete
transistors,
twelve diodes, and a 130-volt split· power supply.
The amplifier output is directly coupled to an B-ohm speaker.
This RCA 120-wa...