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Model 618B	Sect. IV Page 3
TABLE 4-2. TUBE COMPLEMENT, SIGNAL GENERATOR 618B
Tube	Type	Function	Adjustments Required
VlOl	12AT7	Sync Amplifier and Inverter	None
V102	5726 (6AL5)	Clipper (1/2 tube not used)	None
V103	5814 (12AU7)	Rate Multivibrator	Para. 4-17 - Table 4-6
V104	5814 (12AU7)	Pulse Shaping Multivibrator	None
V105	5814 (12AU7)	Pulse Amplifier and Sync Out Cathode Follower	None
V106	5726 (6AL5)	Base Limiter for Delay Multivibrator	None
V107	5814 (12AU7)	Delay Multivibrator	Par. 4-18 - Table 4-6
V108	5726 (6AL5)	Blocking Diode	None
V109	5814 (12AU7)	Pulse Amplifier Inverter and Delayed Sync Out Cathode Follower	None
V110	2D21	Thyratron Discharge Tube	None
V111	5814 (12AU7)	Pulse Width Multivibrator	Par. 4-19 - Table 4-6
V112	12AT7	Clipper and Klystron Bias Regulator	Steps 7 & 8 - Table 4-4
V113	5763	Modulator	Steps 7 & 8 - Table 4-4
V114	6236	Radio Frequency Oscillator	Par. 4-10, 4-11 & 4-12
V115	5814 (12AU7)	Delayed Sync Out Multivibrator	None
V301	5R4GY	Full Wave Rectifier	None
V302	6AU6	Regulator Amplifier	Step 1 - Table 4-4
V303	6AS7	Series Regulator	Steps 1 & 2 - Table 4-4
V304	OA2	Voltage Regulator	Step 1 - Table 4-4
V305	5R4GY	Full Wave Rectifier	None
V306	6AU6	Regulator Amplifier	Step 2 - Table 4-4
V307	5R4GY	Full Wave Rectifier	None
V308	6AS7	Series Regulator	Step 4 - Table 4-4
V309	6AU6	Regulator Amplifier	Step 4 - Table 4-4
V310	OA2	Voltage Regulator	Step 4 - Table 4-4
V311	OA2	Voltage Regulator	Step 4 - Table 4-4
V312	OA3	Voltage Regulator	Steps 4 % 5 - Table 4-4
V313	OA2	Voltage Regulator	Step 6 - Table 4-4
V314	OA2	Voltage Regulator	Step 6 - Table 4-4