Mod 101 Manual page 65

V1
3
2
1 3
7
8
Test Point
V1 (pin 1)
V1 plate 1
V1 (pin 2)
V1 grid 1
V1 (pin 3)
V1 cathode 1
V1 (pin 6)
V1 plate 2
V1 (pin 7)
V1 grid 2
V1 (pin 8)
V1 cathode 2
V3
5
8
1*
4
3
Test Point
V3 (pin 3)
V3 plate
V3 (pin 4)
V3 screen grid
V3 (pin 5)
V3 control grid
V3 (pin 8)
V3 cathode
PREAMP TUBE ELECTRODES
See Assembly Drawing 22
5
6
Name DC Voltage
328 VDC
0 VDC
2.4 VDC
320 VDC
0 VDC
2.4 VDC
POWER TUBE ELECTRODES
See Assembly Drawing 22
4
3
Name DC Voltage
483 VDC
470 VDC
-47 VDC
34 mVDC
V2
3
2
3
1 5
6
7
8
Test Point
V2 (pin 1)
V2 (pin 2)
V2 (pin 3)
V2 (pin 6)
V2 (pin 7)
V2 (pin 8)
V4
5
8
1*
Test Point
V4 (pin 3)
V4 (pin 4)
V4 (pin 5)
V4 (pin 8)
6
Voltages measured from test point to ground
with no signal, bias pot turned all the way
to cold and the following front panel
settings:
POWER: ON
STANDBY: (UP POSITION)
BASS: "0"
TREBLE: "0"
VOLUME: "0"
Name
V2 plate 1
V2 grid 1
V2 cathode 1
V2 plate 2
V2 grid 2
V2 cathode 2
Voltages measured from test point to ground
with no signal, bias pot turned all the way
to cold and the following front panel
settings:
POWER: ON
STANDBY: (UP POSITION)
BASS: "0"
TREBLE: "0"
VOLUME: "0"
Name
V4 plate
V4 screen grid
V4 control grid
V4 cathode
A
DC Voltage
276 VDC
68 VDC
106 VDC
254 VDC
73 VDC
106 VDC
DC Voltage
487 VDC
471 VDC
-46 VDC
36 mVDC