Mod 101 Manual page 54

Drawing 24
OHM'S LAW
V
I
=
R
OHM'S LAW
I R V
x =
6L6GC bias range: 10 mA – 50 mA
(35 mA is used commonly)
Apply Ohm's Law to find the corresponding mV
reading for your resistor value:
I = 35 mA
R = 1.6 Ω
V = ?
(35 mA) (1.6 Ω) 56 mV
x =
COM
37.5
V =
COLD
37.5 mV
23.4 mA
=
1.6 Ω
Connect
to
Speaker
Cabinet
PLUGGED
IN
12AX7/
ECC83
T14
12AT7/
ECC81
V
6L6GC's
mV
Set for
mV(DC)
V3
V4
22µF 500V
22µF 500V
22µF 500V
4
22µF 500V
3
2
1
0
80µF 450V
6L6GC
POINT
Start with pot turned
R(BIAS)
all the way to cold.
374BX
5 5 5
6 4 6 4
7 3 7 3
8 2 8 2
9 1 9 1
10 0 10 0
BASS TREBLE VOLUME
56.1
V =
mV
BIAS
56.1 mV
35.06 mA
=
1.6 Ω
Set for
mV(DC)
Higher Value: easily overdriven
Lower Value: cleaner
ON
OFF
POWER STANDBY
6
7
8
9
10