42
Voltage measurements at tube sockets:
TUBE TYPE PIN #1 PIN #2 PIN #3 PIN #4 PIN #5 PIN #6 PIN #7 PIN #8 PIN #9
FRONT END (MASTER)
V-201 4I6B Cathode +6.95V Filam.
6.0 VAC Plate + 195V Grid Ring +6.9V
V-202 6J4 Gnd 1.1 Gnd 6.3 VAC Gnd Gnd 130
V-203 6AK5 -2.0 Gnd 6.3 VAC Gnd
145 59
Gnd
V-204 6AF4A
*53
Do not m. Gnd 6.3 VAC 2.5 Do not m.*53
FRONT END (SLAVE)
V-201 4I6B Cathode +6.95V Filam.
6.0 VAC Plate + 195V Grid Ring +6.9V
V-202 6J4 Gnd 1.1 Gnd 6.3 VAC Gnd Gnd 130
V-203 6AK5 -2.0 Gnd 6.3 VAC Gnd
145 59
Gnd
V-204 6AK5 N/A Gnd 6.3 VAC N/A N/A N/A N/A
MAIN CHASSIS
V-101 12AU7A 135 Gnd 6.7 Gnd Gnd 137
-0.1 6.8 6.2 AC
V-102 12AU7A 235 138 141 Gnd Gnd 235 138 141 6.2 AC
V-103 12AU7A 145 - 0,27 24 Gnd Gnd 210 133 150 6.2 AC
V-104 12AU7A 98 0 5.7 Gnd Gnd 230 0 8 6.2 AC
V-105 6C4 N/A N/A 6.2 VAC Gnd N/A N/A N/A
V-106 12AU7A N/A N/A N/A Gnd Gnd N/A N/A N/A 6.2 AC
200 Kc. IF AMPLIFIER (Master Channel, Function Switch in 200 Kc. FM Position)
V-501 6DC6 -0.33 0.7 6.3 AC
Gnd
134
76
Gnd
V-502 6DC6 -0.32 0.83 6.3 AC Gnd 133 69
Gnd
V-503 6CB6 -0.31 0.12 6.3 AC Gnd
135
34
Gnd
V-504 6AK5 -6.6 Gnd 6.3 AC Gnd
37
83
Gnd
V-505 6AL5 -0.22 -7.0 5.8 AC Gnd Gnd Gnd -12.4
Table 4-1. Voltage Measurements, Model G-187.
Summary of Contents for G-187
Page 7: ...7 Figure 1 1 Model G 187 Special Purpose Receiver Front View...
Page 9: ...9 Table 1 2 Semiconductor and Tube Complement...
Page 10: ...10 Table 1 2 Semiconductor and Tube Complement continued...
Page 14: ...14 Fig 2 1 Block Diagram Model G 187 Receiver...
Page 44: ...44 Fig 4 1 Model G 187 Receiver Top View Cover Removed...
Page 45: ...45 Fig 4 2 Model G 187 Receiver Bottom View Covers Removed...
Page 46: ...46 Fig 4 3 Model G 187 Receiver Rear View...
Page 47: ...47 Fig 4 4 Model G 187 Receiver Panoramic Top View Cover Removed...
Page 48: ...48 Fig 4 5 Model G 187 Receiver Panoramic Top View Left Side Cover Removed...
Page 49: ...49 Fig 4 6 Model G 187 Receiver Panoramic Top View Right Side Cover Removed...
Page 50: ...50 Fig 4 7 Model G 187 Receiver Panoramic Bottom View Covers Removed...
Page 51: ...51 Fig 4 8 Model G 187 Receiver Panoramic Bottom View Left Side Covers Removed...
Page 52: ...52 Fig 4 9 Model G 187 Receiver Panoramic Bottom View Right Side Covers Removed...
Page 53: ...53 Table 4 2 Model G 187 Receiver Component Boards Lists...
Page 54: ...54 Fig 4 10 Model G 187 Receiver Large Component Board...
Page 56: ...56 Fig 4 14 Model G 187 Receiver Master Slave RF Tuners Top View...
Page 57: ...57 Fig 4 15 Model G 187 Receiver Master Slave Tuners Bottom View Covers Removed...
Page 58: ...58 Fig 4 16 Model G 187 Receiver Master Slave Tuners Panoramic Bottom View Covers Removed...
Page 59: ...59 Fig 4 17 Model G 187 Receiver Master RF Tuner Bottom View Cover Removed...
Page 60: ...60 Fig 4 18 Model G 187 Receiver Slave RF Tuner Bottom View Cover Removed...
Page 67: ...67 Fig 5 1 Model G 187 Receiver Schematic Diagram Master RF Tuner...
Page 68: ...68 Fig 5 2 Model G 187 Receiver Schematic Diagram Slave RF Tuner...
Page 71: ...71 Fig 5 5 Model G 187 Receiver Schematic Diagram Main Chassis Circuits...
Page 72: ...72 Fig 5 6 Model G 187 Receiver Schematic Diagram Mainframe...
Page 73: ...73 Fig 5 7 Model G 187 Receiver Schematic Diagram Power Supply Circuits...
Page 74: ...74 Fig 5 8 Model G 187 Receiver Schematic Diagram Various Details...