Fuse Chart
All Fuses are 3AG Type 250 Volt, SLO-BLO
Export 100 Volt Domestic Fuses: Export 220, 230, 240 Fuses:
2A
– 22/35 Watt 2A – 22/35 Watt 1A-22/35 Watt
(Tube Complement)
V1
V2
V3
V4
V5
V6
V7
BIAS Pot
TEST POINT
V1- 12AX7, Input and Gain
V2- 12AX7, Reverb Send & Return
V3- 12AT7, Reverb Drive
V4- 12AX7- Effects buffer & Mixing Stage
V5- 12AX7, Phase Inverter
V6-V7 - 6L6 (35 watt) or 6V6 (22 watt) Power Tubes
Each fine production tube is tested and matched to our exacting specifications. External bias
adjustment and test points are located on the chassis near the output tube sockets. A digital multi-
meter and small screwdriver are required for bias adjustment.
BIAS ADJUSTMENT PROCEDURE:
-Power up unit and connect proper speaker load
-DO NOT have an instrument connected to the input during the biasing procedure!
-Take unit off standby and allow a few seconds for the circuit to stabilize.
-Set multi-meter to read DC Volts
-With meter grounded to chassis and + probe inserted into test point, measure voltage.
-Using a small flat head screwdriver, insert into Bias pot and turn slowly adjusting Bias level
Summary of Contents for Studio pro 22/35
Page 1: ...OWNER S MANUAL...
Page 9: ......
