Chapter Two: Using Your Herbert
2.1 Mains Connections, Power and Standby
2.1.1 Mains/Connection to Power Outlet
Please make sure that both switches (Power and Standby) are in the
off position before connecting to the Mains circuit. Verify line voltage
before connecting the power cord. Never start Herbert without
speakers being connected to the proper terminals. (See 3.2.8)
2.1.2 Power up, Warm up, Standby off
First turn the Power switch to on (facing up). The indicator will light
up. This starts the tube heating process. After about 40 seconds, the
tubes have sufficiently heated for normal operation. Your Herbert is
now ready for operation and the standby switch can be turned to “run”
(also facing up). Premature activation of the standby switch will lead to
unnecessary tube stress and subsequent reduction of the power tube’s
life span.
2.1.3 Power Tube Caution
Tubes are electronic components that only function with vacuum intact
and under very high operating temperatures. Each tube has one or
more heating filaments, much like a light bulb. These filaments heat up
the Anode of the tube. If you switch the standby switch before these
