Controls
1. Input Hi & Lo.
Jack plug input connection for your electric guitar.
High impedance input connections for instruments.
Input Hi provides 6db more gain than the Lo input.
Both inputs are identical if used simultaneously.
2. Volume
Adjusts the gain of the pre-amp and is used in conjunction to set the overall
volume of the amplifier.
3. Tone
Adjusts the amount of low and high frequency boost.
4. Channel 2
Controls are the same as for Channel 1.
The overall tone of Channel 2 is brighter than Channel 1.
5. 18/20 Switch
Changes the rectification from semiconductor diode (20) to valve rectification
(18).
6. Low-High Switch
Reduces the output from 5 watts (low) to 20 watts when switched to the high
position.
7. Output
The two jack sockets are wired in parallel and are connected to an 8 ohm
speaker load via a jack lead. The output switch changes impedance from 8
(Toggle points “IN”) ohms to 4 ohms (Toggle points “OUT”).
8. Mains
When illuminated the valve heaters are on and there is power to the amplifier.
Mains Switch Operation
Do not operate mains switch without a 30 second delay between
operations.
An internal Thermistor reduces mains surges. It works by introducing a
resistance when switched on, after a few seconds the Thermistor is heated
and the resistance is reduced. When switched off it requires a few seconds to
cool and retain its resistance before the next switch on.
Mains Fuse
The fuse holder contains the mains fuse to the amplifier and protects the
amplifier from electrical faults.
Replace a failed fuse only with the same type and rating.
!
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