3712 Index12BY7 16, 17, 18, 336146 15, 16, 17, 18, 20, 236146B 12, 16, 17, 20, 21, 22, 25, 346146W 16, 22AF AVR unit 28, 30AF-AVR Unit 12, 13AGC 13, 14, 26, 27ALC 18, 19alignment 22, 25, 26, 27, 28AMTOR 23, 27, 29bandswitch 10, 11, 24bias 8, 12, 17, 20, 23, 34calibration 22clipping 7Collins 7Connectors 35CW 11, 15, 16, 17, 18, 20, 21, 22, 28, 29,31, 33drive 16, 18, 19, 22, 23, 25, 28DRIVE 22, 23dummy-load 17Fan 25filter 7, 11, 14, 21, 25, 26, 27, 28, 29FIX switch 9Frequency drift 8Germanium diodes 12IF SHIFT 29IF Unit 11, 12, 13, 26IF-signal 12IMD 7, 13, 21, 33intermediate-frequency 11, 13lamp 13LOAD 16Lubrication 25Microphone 23mode switch 25, 29neutralization 16, 21, 23Noise Blanker 30output power 17, 18, 20, 21plate current 16, 17, 19, 20PLL 8, 29Plugs 35power-supply 13processor 7, 20, 33QRO 14, 20, 21QRP 19, 20RF Unit 10, 11, 13, 14RF-gain 26, 27RF-voltmeter 12RIT 27Schottky-diodes 12sidetone 15split frequency 7SSB 6, 12, 15, 17, 18, 20, 25, 26T/R relay 34TUNE 16, 18, 22TX relay 23VBT 25, 26, 27, 29VBT-oscillator 25, 26, 27VFO 7, 8, 9, 13, 25, 27, 28, 33VFO-230 28VHF 14VOX 15, 25XIT 27Yaesu 9, 21, 31YG-455C 29YK-88C 29