RCA1B04

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-watt audio amplifier is especially designed for top-of-theline quadrasonic use in applic~tions requiring %kW of quadrasonic sound with excellent tonal quality. I CLASS A DIFFERENTIAL PRE DRiVERS p-n-p t21 RCA lAID 0-- INPUT DIFFERENTIAL AMPLIFIER n-p-n (21 RCAIAll 1- CURRENT SOURCE n-p-n RC...